Ahmed El-Shafei, a Professor in the Polymer and Color Chemistry Program at North Carolina State University, joined the faculty in 2008 after 5-year of conducting research as a Research Assistant Professor at NC State in different chemistry areas with a focus towards functional dyes including dye-sensitized solar cells, photodynamic therapy, and molecular modeling of photostability, photophysics, thermal and photodegradation mechanisms of dyes and polymers. He received a B.S. (1989) with honors and a M.Sc. (1994) in Organic Chemistry both from Mansoura University, Egypt, and a Co-Major Ph.D. (2002) in Chemistry and Fiber and Polymer Science from North Carolina State University. El-Shafei’s current research interests span molecular engineering, molecular modeling (DFT/TD-DFT), synthesis, photophysics, electrochemistry and photovoltaic properties of dyes for dyes-sensitized solar cells and PDT. The second research area of interest in El-Shafei’s group focuses on sustainable dyeing and finishing, the synthesis and nanolayer graft polymerization of different monomer functionalities using atmospheric plasma (waterless) for different end uses including woven, non-wovens and knitted fabrics for fuel filtration, medical applications and flame retardancy. Another research thrust of El-Shafei is on molecular modeling of weathering of dyes and polymers, synthesis and characterization of thermochromic and photochromic dyes, and dyes for ink-jet printing.

Works (133)

2020 journal article

Co-sensitization of the HD-2 complex with low-cost cyanoacetanilides for highly efficient DSSCs

PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES, 19(2), 281–288.

By: M. Elmorsy, L. Lyu, R. Su, E. Abdel-Latif, S. Badawy, A. El-Shafei, A. Fadda

Source: Web Of Science
Added: April 6, 2020

2020 journal article

Efficiency enhancement of ruthenium-based DSSCs employing A-pi-D-pi-A organic Co-sensitizers

RSC ADVANCES, 10(47), 27940–27953.

By: I. Abdellah & A. El-Shafei

Source: Web Of Science
Added: August 24, 2020

2020 journal article

Facile one-step synthesis of supportless porous AuPtPd nanocrystals as high performance electrocatalyst for glucose oxidation reaction

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 45(38), 19163–19173.

By: Y. Ahmad, A. Mohamed, A. El-Shafei, S. Al-Qaradawi & A. Aljaber

Source: Web Of Science
Added: August 10, 2020

2020 journal article

Highly porous PtPd nanoclusters synthesized via selective chemical etching as efficient catalyst for ethanol electro-oxidation

APPLIED SURFACE SCIENCE, 508.

By: Y. Ahmad, A. Mohamed, A. Alashraf, M. Matalqeh, A. El-Shafei, S. Al-Qaradawi, A. Aljaber

Source: Web Of Science
Added: April 14, 2020

2020 journal article

Influence of carbonyl group on photocurrent density of novel fluorene based D-pi-A photosensitizers: Synthesis, photophysical and photovoltaic studies

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 387.

By: I. Abdellah & A. El-Shafei

Source: Web Of Science
Added: January 21, 2020

2020 article

Investigations into structure-property relationships of novel Ru(II) dyes with N,N '-Diethyl group in ancillary ligand for dye-sensitized solar cells (vol 171, 107754, 2019)

Ashraf, S., Su, R., Akhtar, J., Siddiqi, H. M., Shuja, A., Al-Saad, K. A., … El-Shafei, A. (2020, February). DYES AND PIGMENTS, Vol. 173.

By: S. Ashraf, R. Su, J. Akhtar, H. Siddiqi, A. Shuja, K. Al-Saad, S. Al-Qaradawi, A. El-Shafei

Source: Web Of Science
Added: January 6, 2020

2020 journal article

Molecular and excited state properties of photostable yellow disperse dyes

JOURNAL OF MOLECULAR STRUCTURE, 1207.

By: Y. Ding, M. Szymczyk, N. Mehraban, J. Lim, L. Parrillo-Chapman, A. El-Shafei, H. Freeman

Source: Web Of Science
Added: April 6, 2020

2020 article

New cyanoacetanilides based dyes as effective co-sensitizers for DSSCs sensitized with ruthenium (II) complex (HD-2)

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS.

By: M. Elmorsy, R. Su, E. Abdel-Latif, S. Badawy, A. El-Shafei & A. Fadda

Source: Web Of Science
Added: April 27, 2020

2020 journal article

Structural studies and photovoltaic investigation of indolo[2,3-b]quinoxaline-based sensitizers/co-sensitizers achieving highly efficient DSSCs

NEW JOURNAL OF CHEMISTRY, 44(7), 2797–2812.

By: R. Su, L. Lyu, M. Elmorsy & A. El-Shafei

Source: Web Of Science
Added: March 30, 2020

2020 journal article

Synthesis and characterization of novel tetra anchoring A(2)-D-D-D-A(2) architecture sensitizers for efficient dye-sensitized solar cells

SOLAR ENERGY, 198, 25–35.

By: I. Abdellah & A. El-Shafei

Source: Web Of Science
Added: April 27, 2020

2020 journal article

The molecular engineering, synthesis and photovoltaic studies of a novel highly efficient Ru(ii) complex incorporating a bulky TPA ancillary ligand for DSSCs: donor versus pi-spacer effects

RSC ADVANCES, 10(1), 610–619.

By: I. Abdellah & A. El-Shafei

Source: Web Of Science
Added: January 21, 2020

2020 article

Three-component one-pot reaction for molecular engineering of novel cost-effective highly rigid quinoxaline-based photosensitizers for highly efficient DSSCs application: Remarkable photovoltage (vol 171, 107683, 2019)

Lyu, L., Su, R., Al-Qaradawi, S. Y., Al-Saad, K., & El-Shafei, A. (2020, February). DYES AND PIGMENTS, Vol. 173.

By: L. Lyu, R. Su, S. Al-Qaradawi, K. Al-Saad & A. El-Shafei

Source: Web Of Science
Added: January 6, 2020

2020 article

X-ray photoelectron spectroscopy study on the photodegradation of copolyester model compounds

JOURNAL OF APPLIED POLYMER SCIENCE.

By: K. Arangdad, E. Yildirim, A. Detwiler, C. Cleven, C. Burk, R. Shamey, M. Pasquinelli, H. Freeman, A. El-Shafei

Source: Web Of Science
Added: August 10, 2020

2019 journal article

Asymmetric Dual Anchoring Sensitizers/Cosensitizers for Dye Sensitized Solar Cell Application: An Insight into Various Fundamental Processes inside the Cell

JOURNAL OF PHYSICAL CHEMISTRY C, 123(40), 24383–24395.

By: R. Kesavan, F. Attia, R. Su, P. Anees, A. El-Shafei & A. Adhikari

Source: Web Of Science
Added: April 20, 2020

2019 journal article

Facile synthesis of a novel, highly effective, more sustainable and cost-effective cationic bleach activator for cotton: N-[4-(N,N,N)-triethylammoniumchloride-butyryl] caprolactam

CELLULOSE, 26(4), 2849–2860.

By: P. Altay, P. Hauser, N. Gursoy & A. El-Shafei

Source: Web Of Science
Added: April 2, 2019

2019 article

Influence of UV stabilizers on the weathering of PETG and PCTT films

JOURNAL OF APPLIED POLYMER SCIENCE.

By: K. Arangdad, E. Yildirim, A. Detwiler, C. Cleven, C. Burk, R. Shamey, M. Pasquinelli, H. Freeman, A. El-Shafei

Source: Web Of Science
Added: August 5, 2019

2019 journal article

Investigations into structure-property relationships of novel Ru(II) dyes with N,N '-Diethyl group in ancillary ligand for dye-sensitized solar cells

DYES AND PIGMENTS, 171.

By: S. Ashraf, R. Su, J. Akhtar, H. Siddiqi, A. Shuja, K. Al-Saad, S. Al-Qaradawi, A. El-Shafei

Source: Web Of Science
Added: April 20, 2020

2019 journal article

Low-cost Schiff bases chromophores as efficient co-sensitizers for MH-13 in dye-sensitized solar cells

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, 30(5), 5081–5091.

By: M. Abdel-Shakour, W. El-Said, I. Abdellah, R. Su & A. El-Shafei

Source: Web Of Science
Added: April 2, 2019

2019 journal article

Molecular and excited state properties of photostable anthraquinone blue dyes for hydrophobic fibers

JOURNAL OF MOLECULAR STRUCTURE, 1181, 109–117.

By: Y. Ding, N. Mehraban, M. Szymczyk, L. Parrillo-Chapman, A. El-Shafei & H. Freeman

Source: NC State University Libraries
Added: March 4, 2019

2019 journal article

Molecular engineering and investigation of new efficient photosensitizers/co-sensitizers based on bulky donor enriched with EDOT for DSSCs

DYES AND PIGMENTS, 164, 244–256.

By: I. Abdellaha, A. Koraiem & A. El-Shafei

Source: Web Of Science
Added: March 25, 2019

2019 journal article

Novel metal-free organic dyes constructed with the D-D vertical bar A-pi-A motif: Sensitization and co-sensitization study

SOLAR ENERGY, 194, 400–414.

By: R. Sun, L. Lyu, M. Elmorsy & A. El-Shafei

Source: Web Of Science
Added: April 20, 2020

2019 journal article

Photodegradation of copolyester films: A mechanistic study

Journal of Applied Polymer Science, 136(10), 47148.

By: K. Arangdad, A. Detwiler, C. Cleven, C. Burk, R. Shamey, M. Pasquinelli, H. Freeman, A. El-Shafei

Source: Crossref
Added: November 21, 2020

2019 journal article

Simple diphenylamine based D-pi-A type sensitizers/co-sensitizers for DSSCs: a comprehensive study on the impact of anchoring groups

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 21(20), 10603–10613.

By: R. Kesavan, I. Abdellah, S. Singh, A. El-Shafei & A. Adhikari

Source: Web Of Science
Added: August 5, 2019

2019 journal article

Structure-property relationship of novel monosubstituted Ru (II) complexes for high photocurrent and high efficiency DSSCs: Influence of donor versus acceptor ancillary ligand on DSSCs performance

SOLAR ENERGY, 177, 642–651.

By: I. Abdellah, A. Koraiem & A. El-Shafei

Source: NC State University Libraries
Added: February 11, 2019

2019 journal article

Structure-property relationships: "Double-tail versus double-flap" ruthenium complex structures for high efficiency dye-sensitized solar cells

SOLAR ENERGY, 177, 724–736.

By: R. Su, S. Ashraf & A. El-Shafei

Source: NC State University Libraries
Added: February 11, 2019

2019 journal article

Synthesis, optical characterization, and TD-DFT studies of novel mero/bis-mero cyanine dyes based on N-bridgehead heterocycles

CANADIAN JOURNAL OF CHEMISTRY, 97(3), 219–226.

By: A. Koraiem, I. Abdellah, A. El-Shafei, F. Abdel-Latif & R. Abd El-Aal

Source: Web Of Science
Added: March 11, 2019

2019 journal article

Three-component one-pot reaction for molecular engineering of novel cost-effective highly rigid quinoxaline-based photosensitizers for highly efficient DSSCs application: Remarkable photovoltage

DYES AND PIGMENTS, 171.

By: L. Lyu, R. Su, S. Al-Qaradawi, K. Al-Saad & A. El-Shafei

Source: Web Of Science
Added: April 20, 2020

2018 journal article

An Efficient Aniline-Based Co-Sensitizer for High Performance N3-Sensitized Solar Cells

CHEMISTRYSELECT, 3(43), 12297–12302.

By: P. Naik, I. Abdellah, M. Abdel-Shakour, M. Acharaya, N. Pilicode, A. El-Shafei, A. Adhikari

Source: NC State University Libraries
Added: December 17, 2018

2018 journal article

Co-sensitization of Ru(II) complex with terthiophene-based D-pi-pi-A metal-free organic dyes for highly efficient dye-sensitized solar cells: influence of anchoring group on molecular geometry and photovoltaic performance

New Journal of Chemistry, 42(14), 11430–11437.

By: M. Elmorsy, R. Su, A. Fadda, H. Etman, E. Tawfik & A. El-Shafei

Source: NC State University Libraries
Added: August 6, 2018

2018 journal article

Correction: New di-anchoring A–π-D–π-A configured organic chromophores for DSSC application: sensitization and co-sensitization studies

Photochemical & Photobiological Sciences, 17(3), 363–363.

By: P. Naik, R. Su, M. Elmorsy, A. El-Shafei & A. Vasudeva Adhikari

Source: Crossref
Added: September 4, 2020

2018 journal article

Data from X-ray crystallographic analysis and DFT calculations on isomeric azo disperse dyes

DATA IN BRIEF, 21, 675–683.

By: J. Lim, M. Szymczyk, N. Mehraban, Y. Ding, L. Parrillo-Chapman, A. El-Shafei, H. Freeman

Source: NC State University Libraries
Added: February 25, 2019

2018 journal article

Effect of terthiophene spacer position in Ru(II) bipyridyl complexes on the photocurrent and photovoltage for high efficiency dye-sensitized solar cells

Dyes and Pigments, 156, 348–356.

By: M. Elmorsy, R. Su, A. Fadda, H. Etman, E. Tawfik & A. El-Shafei

Source: NC State University Libraries
Added: August 6, 2018

2018 journal article

Enhancing photovoltaic performance of DSSCs sensitized with Ru-II complexes by D-pi-A configured carbazole based co-sensitizers

New Journal of Chemistry, 42(12), 9443–9448.

By: P. Naik, M. Elmorsy, R. Su, A. El-Shafei & A. Adhikari

Source: NC State University Libraries
Added: August 6, 2018

2018 journal article

Highly efficient carbazole based co-sensitizers carrying electron deficient barbituric acid for NCSU-10 sensitized DSSCs

Solar Energy, 169, 386–391.

By: P. Naik, K. Keremane, M. Elmorsy, R. Su, A. El-Shafei & A. Adhikari

Source: NC State University Libraries
Added: August 6, 2018

2018 journal article

Improvement in performance of N3 sensitized DSSCs with structurally simple aniline based organic co-sensitizers

SOLAR ENERGY, 174, 999–1007.

By: P. Naik, I. Abdellah, M. Abdel-Shakour, R. Su, K. Keremane, A. El-Shafei, A. Adhikari

Source: NC State University Libraries
Added: December 17, 2018

2018 journal article

Influence of brominated-TPA-stilbazole based ancillary ligand on the photocurrent and photovoltage in dye-sensitized solar cells

Dyes and Pigments, 150, 347–353.

By: S. Ashraf, R. Su, J. Akhtar, H. Siddiqi & A. El-Shafei

Source: NC State University Libraries
Added: August 6, 2018

2018 journal article

Investigation of new carbazole based metal-free dyes as active photo-sensitizers/co-sensitizers for DSSCs

Dyes and Pigments, 149, 177–187.

By: P. Naik, R. Su, M. Elmorsy, A. El-Shafei & A. Adhikari

Source: NC State University Libraries
Added: August 6, 2018

2018 journal article

Molecular and excited state properties of isomeric scarlet disperse dyes

Journal of Molecular Structure, 1161, 254–261.

By: J. Lim, M. Szymczyk, N. Mehraban, Y. Ding, L. Parrillo-Chapman, A. El-Shafei, H. Freeman

Source: NC State University Libraries
Added: August 6, 2018

2018 journal article

Molecular engineering and synthesis of novel metal-free organic sensitizers with D-π-A-π-A architecture for DSSC applications: The effect of the anchoring group

Dyes and Pigments, 158, 121–130.

By: M. Elmorsy, R. Su, A. Fadda, H. Etman, E. Tawfik & A. El-Shafei

Source: Crossref
Added: September 4, 2020

2018 journal article

New carbazole based dyes as effective co-sensitizers for DSSCs sensitized with ruthenium (II) complex (NCSU-10)

Journal of Energy Chemistry, 27(2), 351–360.

By: P. Naik, R. Su, M. Elmorsy, A. El-Shafei & A. Adhikari

Source: NC State University Libraries
Added: August 6, 2018

2018 journal article

New di-anchoring A-pi-D-pi-A configured organic chromophores for DSSC application: sensitization and co-sensitization studies

Photochemical & Photobiological Sciences, 17(3), 302–314.

By: P. Naik, R. Su, M. Elmorsy, A. El-Shafei & A. Adhikari

Source: NC State University Libraries
Added: August 6, 2018

2018 journal article

Quasi-Solid-State Dye-Sensitized Solar Cells Containing a Charged Thermoplastic Elastomeric Gel Electrolyte and Hydrophilic/phobic Photosensitizers

Solar RRL, 2(3), 1700145.

By: H. Al-Mohsin, K. Mineart, D. Armstrong, A. El-Shafei & R. Spontak

Source: Crossref
Added: September 4, 2020

2018 journal article

Quasi-solid-state dye-sensitized solar cells containing a charged thermoplastic elastomeric gel electrolyte and hydrophilic/phobic photosensitizers

Solar RRL, 2(3).

By: H. Al-Mohsin, K. Mineart, D. Armstrong, A. El-Shafei & R. Spontak

Source: NC State University Libraries
Added: August 6, 2018

2018 conference paper

Synthesis, characterization and performance studies of a new metal-free organic sensitizer for DSSC application

Materials Today-Proceedings, 5(1), 3150–3157.

By: P. Naik, D. Babu, R. Su, A. El-Shafei & A. Adhikari

Source: NC State University Libraries
Added: August 6, 2018

2018 journal article

Theoretical and experimental spectroscopic investigation of new polymethine donor-pi-acceptor cyanine dyes: Synthesis, photophysical, and TDDFT studies

JOURNAL OF MOLECULAR STRUCTURE, 1173, 406–416.

By: A. Koraiem, A. El-Shafei, I. Abdellah, F. Abdel-Latif & R. Abd El-Aal

Source: NC State University Libraries
Added: October 19, 2018

2017 journal article

A comparative study of the influence of N, N '-dialkyl vs. N, N '-diaryl-based electron donor ancillary ligands on photocurrent and photovoltage in dye-sensitized solar cells (DSSCs)

Physical Chemistry Chemical Physics, 19(31), 20847–20860.

By: S. Ashraf, E. Yildirim, J. Akhtar, H. Siddiqi & A. El-Shafei

Source: NC State University Libraries
Added: August 6, 2018

2017 journal article

A comparative study on two Ru-II complexes with thiophene-based ancillary ligands for high-efficiency dye-sensitized solar cells

European Journal of Inorganic Chemistry, (31), 3690–3697.

Source: NC State University Libraries
Added: August 6, 2018

2017 journal article

A comparative study to evaluate conventional and nonconventional cleaning treatments of cellulosic paper supports

Mediterranean Archaeology & Archaeometry, 17(3), 337–353.

By: Y. Zidan, A. El-Shafei, W. Noshy & E. Salim

Source: NC State University Libraries
Added: August 6, 2018

2017 journal article

Improved photovoltaic performances of Ru (II) complex sensitized DSSCs by co-sensitization of carbazole based chromophores

Inorganic Chemistry Communications, 86, 241–245.

By: P. Naik, R. Su, A. El-Shafei & A. Adhikari

Source: NC State University Libraries
Added: August 6, 2018

2017 journal article

Influence of atmospheric plasma-induced graft polymerization of DADMAC into cotton on dyeing with acid dyes

Journal of the Textile Institute, 108(11), 1871–1878.

By: H. Helmy, P. Hauser & A. El-Shafei

Source: NC State University Libraries
Added: August 6, 2018

2017 journal article

Molecular design and theoretical investigation of new metal-free heteroaromatic dyes with D-pi-A architecture as photosensitizers for DSSC application

Journal of Photochemistry and Photobiology. A, Chemistry, 345, 63–73.

By: P. Naik, R. Su, M. Elmorsy, D. Babu, A. El-Shafei & A. Adhikari

Source: NC State University Libraries
Added: August 6, 2018

2017 journal article

New carbazole based metal-free organic dyes with D-pi-A-pi-A architecture for DSSCs: Synthesis, theoretical and cell performance studies

Solar Energy, 153, 600–610.

By: P. Naik, M. Elmorsy, R. Su, D. Babu, A. El-Shafei & A. Adhikari

Source: NC State University Libraries
Added: August 6, 2018

2017 journal article

Structurally simple D-A-type organic sensitizers for dye-sensitized solar cells: Effect of anchoring moieties on the cell performance

Journal of the Iranian Chemical Society, 14(11), 2457–2466.

By: P. Naik, R. Su, D. Babu, A. El-Shafei & A. Adhikari

Source: NC State University Libraries
Added: August 6, 2018

2017 journal article

Structure-property relationships: Influence of number of anchoring groups in triphenylamine-carbazole motifs on light harvesting and photovoltaic performance for dye-sensitized solar cells

Dyes and Pigments, 147, 491–504.

By: D. Elsherbiny, E. Yildirim, F. El-Essawy, A. Abdel-Megied & A. El-Shafei

Source: NC State University Libraries
Added: August 6, 2018

2017 journal article

Synthesis and photovoltaic performance of a novel asymmetric dual channel co-sensitizer for dye-sensitized solar cell beyond 10% efficiency

Dyes and Pigments, 141, 112–120.

By: D. Babu, R. Su, P. Naik, A. El-Shafei & A. Adhikari

Source: NC State University Libraries
Added: August 6, 2018

2017 journal article

Thiocyanate-free ruthenium(II) sensitizers with a bi-imidazole ligand in dye-sensitized solar cells (DSSCs)

New Journal of Chemistry, 41(14), 6272–6277.

By: S. Ashraf, J. Akhtar, H. Siddiqi & A. El-Shafei

Source: NC State University Libraries
Added: August 6, 2018

2016 journal article

Design and synthesis of BODIPY sensitizers with long alkyl chains tethered to N-carbazole and their application for dye sensitized solar cells

Materials Chemistry and Physics, 184, 57–63.

By: H. Cheema, R. Younts, B. Gautam, K. Gundogdu & A. El-Shafei

Source: NC State University Libraries
Added: August 6, 2018

2016 journal article

From molecular design to co-sensitization; high performance indole based photosensitizers for dye-sensitized solar cells

Electrochimica Acta, 198, 10–21.

By: D. Babu, R. Su, A. El-Shafei & A. Adhikari

Source: NC State University Libraries
Added: August 6, 2018

2016 journal article

Highly efficient panchromatic dye-sensitized solar cells: Synergistic interaction of ruthenium sensitizer with novel co-sensitizers carrying different acceptor units

Dyes and Pigments, 132, 316–328.

By: D. Babu, D. Elsherbiny, H. Cheema, A. El-Shafei & A. Adhikari

Source: NC State University Libraries
Added: August 6, 2018

2016 journal article

New indole based co-sensitizers for dye sensitized solar cells exceeding 10% efficiency

RSC Advances, 6(36), 30205–30216.

By: D. Babu, R. Su, A. El-Shafei & A. Adhikari

Source: NC State University Libraries
Added: August 6, 2018

2016 journal article

Plasma induced graft polymerization of cationic and fluorocarbon monomers into cotton: Enhanced dyeability and photostability

Industrial & Engineering Chemistry Research, 55(31), 8501–8508.

By: A. Ramamoorthy, H. Helmy, R. Rajbhandari, P. Hauser & A. E-Shafei

Source: NC State University Libraries
Added: August 6, 2018

2016 journal article

Selective synthesis, structural studies and antitumor evaluation of some novel unsymmetrical 1-hetary1-4-(2-chloroquinolin-3-yl)azines

Journal of Saudi Chemical Society, 20(6), 695–702.

By: S. Bondock, H. Gieman & A. El-Shafei

Source: NC State University Libraries
Added: August 6, 2018

2015 journal article

A femtosecond study of the anomaly in electron injection for dye-sensitized solar cells: the influence of isomerization employing Ru(II) sensitizers with anthracene and phenanthrene ancillary ligands

Physical Chemistry Chemical Physics, 17(4), 2750–2756.

By: H. Cheema, R. Younts, L. Ogbose, B. Gautam, K. Gundogdu & A. El-Shafei

Source: NC State University Libraries
Added: August 6, 2018

2015 journal article

Ag-encapsulated Au plasmonic nanorods for enhanced dye-sensitized solar cell performance

Journal of Materials Chemistry A, 3(8), 4659–4668.

By: H. Dong, Z. Wu, A. El-Shafei, B. Xia, N. J., J. S. Y., . B., X. Hou

Source: NC State University Libraries
Added: August 6, 2018

2015 journal article

Characterization of non-genotoxic diarylides using experimental and molecular orbital methods

Dyes and Pigments, 121, 128–137.

By: A. El-Shafei, D. Hinks, P. Boyle & H. Freeman

Source: NC State University Libraries
Added: August 6, 2018

2015 journal article

Eco-friendly finishing agent for cotton fabrics to improve flame retardant and antibacterial properties

Carbohydrate Polymers, 118, 83–90.

By: A. El-Shafei, M. ElShemy & A. Abou-Okeil

Source: Crossref
Added: September 4, 2020

2015 journal article

Molecular engineering and theoretical investigation of novel metal-free organic chromophores for dye-sensitized solar cells

Electrochimica Acta, 176, 868–879.

By: D. Babu, H. Cheema, D. Elsherbiny, A. El-Shafei & A. Adhikari

Source: NC State University Libraries
Added: August 6, 2018

2015 journal article

Monodentate pyrazole as a replacement of labile NCS for Ru (II) photosensitizers: Minimum electron injection free energy for dye-sensitized solar cells

Dyes and Pigments, 120, 93–98.

By: H. Cheema, A. Islam, L. Han & A. El-Shafei

Source: NC State University Libraries
Added: August 6, 2018

2015 journal article

Nanolayer atmospheric pressure plasma graft polymerization of durable repellent finishes on cotton

Journal of Coatings Technology and Research, 12(4), 681–691.

By: A. El-Shafei, H. Helmy, A. Ramamoorthy & P. Hauser

Source: NC State University Libraries
Added: August 6, 2018

2015 journal article

Nonflammable cellulosic substrates by application of novel radiation-curable flame retardant monomers derived from cyclotriphosphazene

Cellulose, 22(1), 275–287.

By: B. Edwards, P. Hauser & A. El-Shafei

Source: NC State University Libraries
Added: August 6, 2018

2015 journal article

Novel genipin-collagen immobilization of polylactic acid (PLA) fibers for use as tissue engineering scaffolds

Journal of Biomedical Materials Research. Part B, Applied Biomaterials, 103(6), 1188–1197.

By: N. Tambe, J. Di, Z. Zhang, S. Bernacki, A. El-Shafei & M. King

Source: NC State University Libraries
Added: August 6, 2018

2015 journal article

Preparation, polymerization, and performance evaluation of halogen-free radiation curable flame retardant monomers for cotton substrates

Industrial & Engineering Chemistry Research, 54(2), 577–584.

By: B. Edwards, S. Rudolf, P. Hauser & A. El-Shafei

Source: NC State University Libraries
Added: August 6, 2018

2015 journal article

Structure-property relationships: Steric effect in ancillary ligand and how it influences photocurrent and photovoltage in dye-sensitized solar cells

Dyes and Pigments, 113, 151–159.

By: H. Cheema, L. Ogbose & A. El-Shafei

Source: NC State University Libraries
Added: August 6, 2018

2015 journal article

Synthesis and characterization of novel carbazole-based terpyridyl photosensitizers for dye-sensitized solar cells (DSSCs)

Dyes and Pigments, 115, 81–87.

By: D. El-Sherbiny, H. Cheema, F. El-Essawy, A. Abdel-Megied & A. El-Shafei

Source: NC State University Libraries
Added: August 6, 2018

2015 journal article

Synthesis, antiviral, cytotoxicity and antitumor evaluations of A(4) type of porphyrin derivatives

Journal of Porphyrins and Phthalocyanines, 19(6), 753–768.

By: A. Fadda, R. El-Mekawy & A. El-Shafei

Source: NC State University Libraries
Added: August 6, 2018

2014 journal article

A comparative study of Ru(II) cyclometallated complexes versus thiocyanated heteroleptic complexes: Thermodynamic force for efficient dye regeneration in dye-sensitized solar cells and how low could it be?

Physical Chemistry Chemical Physics, 16(28), 14874–14881.

By: M. Hussain, A. Islam, I. Bedja, R. Gupta, L. Han & A. El-Shafei

Source: NC State University Libraries
Added: August 6, 2018

2014 review

A nanostructure-based counter electrode for dye-sensitized solar cells by assembly of silver nanoparticles

[Review of ]. Organic Electronics, 15(7), 1641–1649.

By: H. Dong, Z. Wu, Y. Gao, A. El-Shafei, B. Jiao, Y. Dai, X. Hou

Source: NC State University Libraries
Added: August 6, 2018

2014 journal article

Influence of mono versus bis-electron-donor ancillary ligands in heteroleptic Ru(II) bipyridyl complexes on electron injection from the first excited singlet and triplet states in dye-sensitized solar cells

Journal of Materials Chemistry A, 2(34), 14228–14235.

By: H. Cheema, A. Islam, L. Han, B. Gautam, R. Younts, K. Gundogdu, A. El-Shafei

Source: NC State University Libraries
Added: August 6, 2018

2014 journal article

Influence of number of benzodioxan-stilbazole-based ancillary ligands on dye packing, photovoltage and photocurrent in dye-sensitized solar cells

ACS Applied Materials & Interfaces, 6(14), 11617–11624.

By: H. Cheema, A. Islam, L. Han & A. El-Shafei

Source: NC State University Libraries
Added: August 6, 2018

2014 journal article

Molecular engineering of new thienyl-bodipy dyes for highly efficient panchromatic sensitized solar cells

Advanced Energy Materials, 4(11).

By: C. Qin, A. Mirloup, N. Leclerc, A. Islam, A. El-Shafei, L. Han, R. Ziessel

Source: NC State University Libraries
Added: August 6, 2018

2014 journal article

More stable and more efficient alternatives of Z-907: carbazole-based amphiphilic Ru(II) sensitizers for dye-sensitized solar cells

Physical Chemistry Chemical Physics, 16(48), 27078–27087.

By: H. Cheema, A. Islam, R. Younts, B. Gautam, I. Bedja, R. Gupta, L. Han, K. Gundogdu, A. El-Shafei

Source: NC State University Libraries
Added: August 6, 2018

2014 journal article

Optical enhancement in heteroleptic Ru(II) polypyridyl complexes using electron-donor ancillary ligands

Journal of Physical Chemistry. C, 118(17), 8747–8755.

By: R. Dong, A. Calzolari, R. Felice, A. El-Shafei, M. Hussain & M. Nardelli

Source: NC State University Libraries
Added: August 6, 2018

2014 journal article

Optics-electrics highways: Plasmonic silver nanowires@TiO2 core-shell nanocomposites for enhanced dye-sensitized solar cells performance

Nano Energy, 10, 181–191.

By: H. Dong, Z. Wu, F. Lu, Y. Gao, A. El-Shafei, B. Jiao, S. Ning, X. Hou

Source: NC State University Libraries
Added: August 6, 2018

2014 journal article

Silver-loaded anatase nanotubes dispersed plasmonic composite photoanode for dye-sensitized solar cells

Organic Electronics, 15(11), 2847–2854.

By: H. Dong, Z. Wu, Y. Gao, A. El-Shafei, S. Ning, J. J., . B., X. Hou

Source: NC State University Libraries
Added: August 6, 2018

2014 journal article

Structure-property relationship of hetero-aromatic-electron-donor antennas of polypyridyl Ru (II) complexes for high efficiency dye-sensitized solar cells

Progress in Photovoltaics, 22(9), 958–969.

By: A. El-Shafei, M. Hussain, A. Islam & L. Han

Source: NC State University Libraries
Added: August 6, 2018

2013 journal article

Conferring durable antimicrobial properties on nonwoven polypropylene via plasma-assisted graft polymerization of DADMAC

Surface & Coatings Technology, 224, 1–7.

By: M. Mazloumpour, P. Malshe, A. El-Shafei & P. Hauser

Source: NC State University Libraries
Added: August 6, 2018

2013 journal article

Conferring flame retardancy on cotton using novel halogen-free flame retardant bifunctional monomers: synthesis, characterizations and applications

Carbohydrate Polymers, 92(1), 885–893.

By: H. Cheema, A. El-Shafei & P. Hauser

Sources: NC State University Libraries, Crossref
Added: August 6, 2018

2013 journal article

Design, synthesis, and pharmacological screening of novel porphyrin derivatives

Journal of Chemistry.

By: A. Fadda, R. El-Mekawy, A. El-Shafei, H. Freeman, D. Hinks & A. El-Fedawy

Source: NC State University Libraries
Added: August 6, 2018

2013 journal article

Functional dyes

Journal of Chemistry.

By: A. El-Shafei, A. Islam & M. Akhtaruzzaman

Source: NC State University Libraries
Added: August 6, 2018

2013 journal article

Influence of cyclic versus acyclic oxygen-containing electron donor ancillary ligands on the photocurrent, photovoltage and photostability for high efficiency dye-sensitized solar cells

Journal of Materials Chemistry A, 1(43), 13679–13686.

By: A. El-Shafei, M. Hussain, A. Islam & L. Han

Source: NC State University Libraries
Added: August 6, 2018

2013 journal article

Multi-functional military textile: Plasma-induced graft polymerization of a C6 fluorocarbon for repellent treatment on nylon-cotton blend fabric

Surface & Coatings Technology, 217, 112–118.

By: P. Malshe, M. Mazloumpour, A. El-Shafei & P. Hauser

Source: NC State University Libraries
Added: August 6, 2018

2013 journal article

Plasma induced graft polymerization of C6 fluorocarbons on cotton fabrics for sustainable finishing applications

Plasma Processes and Polymers, 10(5), 430–443.

By: A. Ramamoorthy, A. El-Shafei & P. Hauser

Source: NC State University Libraries
Added: August 6, 2018

2013 journal article

Structure-property relationship of amplified spontaneous emission in organic semiconductor materials: TPD, DPABP, and NPB

Journal of Physical Chemistry. A, Molecules, Spectroscopy, Kinetics, Environment & General Theory, 117(42), 10903–10911.

By: Z. Wu, L. Ma, P. Liu, C. Zhou, S. Ning, A. El-Shafei, X. Zhao, X. Hou

Source: NC State University Libraries
Added: August 6, 2018

2013 journal article

Structure-property relationship of different electron donors: novel organic sensitizers based on fused dithienothiophene pi-conjugated linker for high efficiency dye-sensitized solar cells

Tetrahedron, 69(16), 3444–3450.

By: M. Akhtaruzzaman, I. Menggenbateer, A. El-Shafei, N. Asao, T. Jin, L. Han, K. Alamry, S. Kosa, A. Asiri, Y. Yamamoto

Source: NC State University Libraries
Added: August 6, 2018

2013 journal article

Structure-property relationship of extended pi-conjugation of ancillary ligands with and without an electron donor of heteroleptic Ru(II) bipyridyl complexes for high efficiency dye-sensitized solar cells

Physical Chemistry Chemical Physics, 15(21), 8401–8408.

By: M. Hussain, A. El-Shafei, A. Islam & L. Han

Source: NC State University Libraries
Added: August 6, 2018

2013 journal article

Synthesis and pharmacological screening of novel meso-substituted porphyrin analogs

Archiv Der Pharmazie, 346(1), 53–61.

By: A. Fadda, R. El-Mekawy, A. El-Shafei & H. Freeman

Source: NC State University Libraries
Added: August 6, 2018

2012 journal article

A novel carbazole-based dye outperformed the benchmark dye N719 for high efficiency dye-sensitized solar cells (DSSCs)

Journal of Materials Chemistry, 22(45), 24048.

By: A. El-Shafei, M. Hussain, A. Atiq, A. Islam & L. Han

Source: Crossref
Added: September 8, 2020

2012 journal article

Donor-acceptor dyes incorporating a stable dibenzosilole pi-conjugated spacer for dye-sensitized solar cells

Journal of Materials Chemistry, 22(21), 10771–10778.

By: M. Akhtaruzzaman, Y. Seya, N. Asao, A. Islam, E. Kwon, A. El-Shafei, L. Han, Y. Yamamoto

Source: NC State University Libraries
Added: August 6, 2018

2012 journal article

Functional Military Textile: Plasma-Induced Graft Polymerization of DADMAC for Antimicrobial Treatment on Nylon-Cotton Blend Fabric

Plasma Chemistry and Plasma Processing, 32(4), 833–843.

By: P. Malshe, M. Mazloumpour, A. El-Shafei & P. Hauser

Source: Crossref
Added: September 8, 2020

2012 journal article

Structure-property relationship of naphthalene based donor-pi-acceptor organic dyes for dye-sensitized solar cells: Remarkable improvement of open-circuit photovoltage

Journal of Materials Chemistry, 22(42), 22550–22557.

By: F. Yang, M. Akhtaruzzaman, A. Islam, T. Jin, A. El-Shafei, C. Qin, L. Han, K. Alamry ...

Source: NC State University Libraries
Added: August 6, 2018

2012 journal article

Surface nanostructuring of kevlar fibers by atmospheric pressure plasma-induced graft polymerization for multifunctional protective clothing

Journal of Polymer Science Part B: Polymer Physics, 50(16), 1165–1172.

By: M. Widodo, A. El-Shafei & P. Hauser

Source: Crossref
Added: September 8, 2020

2012 journal article

Synthesis of novel stilbene-alkoxysilane fluorescent brighteners, and their performance on cotton fiber as fluorescent brightening and ultraviolet absorbing agents

Dyes and Pigments, 92(3), 1231–1240.

By: M. Hussain, R. Shamey, D. Hinks, A. El-Shafei & S. Ali

Source: NC State University Libraries
Added: August 6, 2018

2012 journal article

Towards flame retardant cotton fabrics by atmospheric pressure plasma-induced graft polymerization: Synthesis and application of novel phosphoramidate monomers

Surface & Coatings Technology, 209, 73–79.

By: B. Edwards, A. El-Shafei, P. Hauser & P. Malshe

Source: NC State University Libraries
Added: August 6, 2018

2011 journal article

Atmospheric pressure glow discharge of helium-oxygen plasma treatment on polyester/cotton blended fabric

Indian Journal of Fibre & Textile Research, 36(2), 137–144.

By: K. Kale, S. Palaskar, P. Hauser & A. El-Shafei

Source: NC State University Libraries
Added: August 6, 2018

2011 journal article

Atmospheric pressure plasma treatments for repellent textiles

AATCC Review, 11(1), 70–74.

By: P. Hauser & A. El-Shafei

Source: NC State University Libraries
Added: August 6, 2018

2011 journal article

Use of atmospheric pressure plasma to confer durable water repellent functionality and antimicrobial functionality on cotton/polyester blend

Surface & Coatings Technology, 205(20), 4791–4797.

By: R. Davis, A. El-Shafei & P. Hauser

Source: NC State University Libraries
Added: August 6, 2018

2010 journal article

Facile synthesis, pure DFT calculations, and PM3 semiempirical MO method validation of regiospecificity of novel 1,4-dihydropyrido[2,3-d] pyrimidine derivatives

Synthetic Communications, 40(18), 2788–2805.

By: A. El-Shafei, A. Fadda, S. Bondock, A. Khalil & E. Tawfik

Source: NC State University Libraries
Added: August 6, 2018

2010 journal article

Influence of surface modification on the adhesion between Nitinol wire and fluoropolymer films

Journal of Applied Biomaterials & Biomechanics, 8(1), 7–13.

By: H. Yoon, M. King, S. Michielsen, A. El-Shafei & E. Johnson

Source: NC State University Libraries
Added: August 6, 2018

2009 journal article

Erratum to “X-ray and Molecular Modelling Studies on 4-[N-Alkylamino]azobenzene Dyes” [Dyes Pigments 82 (2009), 299–306]

Dyes and Pigments, 83(2), 267.

By: L. He, A. El-Shafei, H. Freeman & P. Boyle

Source: Crossref
Added: September 8, 2020

2009 journal article

Molecular modelling of inclusion compounds from hydrophobic dyes and gamma-cyclodextrin

Coloration Technology, 125(4), 208–215.

By: A. El-Shafei

Source: NC State University Libraries
Added: August 6, 2018

2009 journal article

Stereospecificity of Diels-Alder reactions validated using ab initio calculations: Synthesis of novel coumarin and phenanthridine derivatives

Synthetic Communications, 39(16), 2954–2972.

By: A. El-Shafei, A. Fadda, I. Abdel-Gawad & E. Youssif

Source: NC State University Libraries
Added: August 6, 2018

2009 journal article

Synthesis, antitumor evaluation, molecular modeling and quantitative structure-activity relationship (QSAR) of some novel arylazopyrazolodiazine and triazine analogs

Bioorganic & Medicinal Chemistry, 17(14), 5096–5105.

By: A. El-Shafei, A. Fadda, A. Khalil, T. Ameen & F. Badria

Source: NC State University Libraries
Added: August 6, 2018

2009 journal article

X-ray and molecular modelling studies of 4-[N-alkylamino]azobenzene dyes

Dyes and Pigments, 82(3), 299–306.

By: L. He, A. El-Shafei, H. Freeman & P. Boyle

Source: NC State University Libraries
Added: August 6, 2018

2007 journal article

Design, synthesis, and characterization of new iron-complexed azo dyes

Dyes and Pigments, 72(1), 8–15.

By: M. Szymczyk, A. El-Shafei & H. Freeman

Source: NC State University Libraries
Added: August 6, 2018

2007 journal article

Why is stereoregular polyacrylonitrile obtained by polymerization in urea canals isotactic?

Macromolecular Theory and Simulations, 16(9), 797–809.

By: H. Yang, A. El-Shafei, F. Schilling & A. Tonelli

Source: NC State University Libraries
Added: August 6, 2018

2006 journal article

Polymerization of styrene in gamma-cyclodextrin channels: Lightly rotaxanated polystyrenes with altered stereosequences

Polymer, 47(20), 6948–6955.

By: T. Uyar, H. Gracz, M. Rusa, I. Shin, A. El-Shafei & A. Tonelli

Source: NC State University Libraries
Added: August 6, 2018

2006 journal article

The solid channel structure inclusion complex formed between guest styrene and host gamma-cyclodextrin

Journal of Inclusion Phenomena and Macrocyclic Chemistry, 55(1-2), 109–121.

By: T. Uyar, A. El-Shafei, X. Wang, J. Hacaloglu & A. Tonelli

Source: NC State University Libraries
Added: August 6, 2018

2006 journal article

The solid channel structure inclusion complex formed between styrene guests and gamma-cyclodextrin hosts

Journal of Inclusion Phenomena and Macrocyclic Chemistry, 55(109).

By: A. Tonelli, T. Uyar, A. El-Shafei & J. Hacaloglu

Source: NC State University Libraries
Added: August 6, 2018

2006 journal article

Use of gamma-cyclodextrin/epichlorohydrin polymer in merging fabric formation and coloration processes

Coloration Technology, 122(6), 345–349.

Source: NC State University Libraries
Added: August 6, 2018

2005 patent

Sock for detection of pressure points on feet

Washington, DC: U.S. Patent and Trademark Office.

By: J. Horton, D. Hinks & A. El-Shafei

Source: NC State University Libraries
Added: August 6, 2018

2004 journal article

Cationic bleach activators for improving cotton bleaching

AATCC Review, 4(8), 37–40.

By: N. Gursoy, A. El-Shafei, P. Hauser & D. Hinks

Source: NC State University Libraries
Added: August 6, 2018

2004 conference paper

Design, synthesis, and characterization of new iron-complexed azo dyes

Colorchem '04: proceedings : 23-27 May 2004, Hotel Harmony, S?pindleru?v Mly?n, Czech Republic. Pardubice: Vy?zkumny? u?stav organicky?ch synte?z.

By: H. Freeman, M. Szymczyk & A. El-Shafei

Source: NC State University Libraries
Added: August 6, 2018

2004 journal article

Non-mutagenic organic pigment intermediates. II. Isomorphous 2,2 '-dichloro-5,5 '-dipropoxybenzidine and 2,2 '-dimethyl-5,5 '-dipropoxybenzidine

Acta Crystallographica. Section C, Crystal Structure Communications, 60(Aug-04), O569–571.

By: A. El-Shafei, D. Hinks, P. Boyle & H. Freeman

Source: NC State University Libraries
Added: August 6, 2018

2003 journal article

Metallization of non-genotoxic direct dyes

Dyes and Pigments, 57(2), 121–129.

By: J. Bae, H. Freeman & A. El-Shafei

Source: NC State University Libraries
Added: August 6, 2018

2003 journal article

Non-mutagenic organic pigment intermediates. I. 3,3 '- Dipropoxybenzidine

Acta Crystallographica. Section C, Crystal Structure Communications, 59(2003 Feb), O71–73.

By: A. El-Shafei, P. Boyle, D. Hinks & H. Freeman

Source: NC State University Libraries
Added: August 6, 2018

2003 journal article

Towards a universal dye class for printing on multiple substrates

Coloration Technology, 119(2), 70–75.

By: D. Hinks, M. Rashad & A. El-Shafei

Source: NC State University Libraries
Added: August 6, 2018

2001 journal article

Radiometeric measurements of area lighting critical to color assessment in the textile industry

AATCC Review, 1(11), 35–39.

By: D. Hinks, A. El-Shafei, S. Draper, Q. Che, M. Nakpathom & R. Connelly

Source: NC State University Libraries
Added: August 6, 2018

2001 journal article

Radiometric measurement of area lighting critical to color assessment in the textile industry

AATCC Review, 1(11), 35–39.

By: D. Hinks, S. Draper, A. El-Shafei, M. Nakpathom, Q. Che & R. Connelly

Source: NC State University Libraries
Added: August 6, 2018

2001 journal article

Semi-empirical molecular orbital methods in the design of organic colorants

AATCC Review, 1(12), 23–26.

By: A. El-Shafei, D. Hinks, H. Freeman & J. Lye

Source: NC State University Libraries
Added: August 6, 2018

2001 journal article

Semi-empirical molecular orbital methods in the design of organic pigments

AATCC Review, 1(12), 23–26.

By: A. El-Shafei, D. Hinks & H. Freeman

Source: NC State University Libraries
Added: August 6, 2018

2000 journal article

Assessment of the effect of lighting variability on color difference

Textile Chemist and Colorist & American Dyestuff Reporter, 32(6), 16–20.

By: D. Hinks, S. Draper, Q. Che, M. Nakpathom, A. El-Shafei & R. Connelly

Source: NC State University Libraries
Added: August 6, 2018

1995 journal article

Potentially active antimicrobial agents from 2-benzenesulfonyloxyphenyl-3,1-benzoxazine-4-one derivative

Bollettino Chimico Farmaceutica, 134(9), 503–508.

By: O. Habib, E. Moawad, M. Girges & A. El-Shafei

Source: NC State University Libraries
Added: August 6, 2018

1995 journal article

Synthetic approaches and biological evaluation of some new sulfonate ester-containing quinazolone derivatives as potentially active antimicrobial agents

Bollettino Chimico Farmaceutica, 134(4), 209–215.

By: O. Habib, M. Girges, E. Moawad & A. El-Shafei

Source: NC State University Libraries
Added: August 6, 2018