@article{gerber_leonard_franzen_2009, title={Conductive thin film multilayers of gold on glass formed by self-assembly of multiple size gold nanoparticles}, volume={517}, ISSN={["0040-6090"]}, DOI={10.1016/j.tsf.2009.05.033}, abstractNote={Highly conductive thin films of gold have been fabricated on glass substrates by the deposition of gold nanoparticles of two different diameters. A deposition sequence, alternating between 2.6-nm and 12-nm diameter particles, was used whereby the 2.6-nm particles served to fill in the gaps created by the assembly of the larger 12-nm diameter particles. The resulting thin films, with thicknesses of less than 35 nm, displayed high conductivities, yet were fabricated in substantially fewer deposition cycles than required by previous methods. Analysis of surface morphology performed by atomic force microscopy and scanning electron microscopy showed that the high conductivity is the result of a less porous surface structure than can be achieved through the layering of a single size nanoparticle. Conductivity analysis was performed by 4-point probe with resistivities of 5.00 ± 0.4 × 10− 6 Ω m for 5 layers and 4.49 ± 0.2 × 10− 6 Ω m for the 6-layer films.}, number={24}, journal={THIN SOLID FILMS}, author={Gerber, Ralph W. and Leonard, Donovan N. and Franzen, Stefan}, year={2009}, month={Oct}, pages={6803–6808} }
 @article{franzen_rhodes_cerruti_gerber_losego_maria_aspnes_2009, title={Plasmonic phenomena in indium tin oxide and ITO-Au hybrid films}, volume={34}, ISSN={["1539-4794"]}, DOI={10.1364/OL.34.002867}, abstractNote={The observation of surface-plasmon resonances in indium tin oxide (ITO) thin films is complemented with the effects of hybrid ITO/Au conducting layers where charge densities can be tuned. Where carrier densities are similar (ITO and nanoparticle Au), the plasmonic behavior is that of a monolithic ITO thin film. Where the carrier density of one layer is much greater than that of the other (ITO and Au metal), boundary conditions lead to cancelation of the surface plasmon. In the latter case a capacitivelike plasmon resonance is observed for sufficiently thin films.}, number={18}, journal={OPTICS LETTERS}, author={Franzen, Stefan and Rhodes, Crissy and Cerruti, Marta and Gerber, Ralph W. and Losego, Mark and Maria, Jon-Paul and Aspnes, D. E.}, year={2009}, month={Sep}, pages={2867–2869} }
 @article{gerber_oliver-hoyo_2008, title={Selective etching via soft lithography of conductive multilayered gold films with analysis of electrolyte solutions}, volume={85}, ISSN={["1938-1328"]}, DOI={10.1021/ed085p1108}, abstractNote={This experiment is designed to expose undergraduate students to the process of selective etching by using soft lithography and the resulting electrical properties of multilayered films fabricated via self-assembly of gold nanoparticles. Students fabricate a conductive film of gold on glass, apply a patterned resist using a polydimethylsiloxane stamp, and etch the unprotected gold. The resulting pattern is evaluated for changes in current, voltage flow, and resistance relative to the initial properties of the nonetched films. Students determine how changes in resistance applied to a conductive pattern affect the flow of current and voltage. Comparisons are made among different electrolyte solutions to demonstrate the electrical difference between strong, weak, and nonelectrolyte solutions, and how stronger electrolytes provide for better current flow.}, number={8}, journal={JOURNAL OF CHEMICAL EDUCATION}, author={Gerber, Ralph W. and Oliver-Hoyo, Maria T.}, year={2008}, month={Aug}, pages={1108–1111} }
 @article{gerber_oliver-hoyo_2007, title={Building a low-cost, six-electrode instrument to measure electrical properties of self-assembled monolayers of gold nanoparticles}, volume={84}, ISSN={["0021-9584"]}, DOI={10.1021/ed084p1177}, abstractNote={The multimeter testing apparatus we describe is an inexpensive and easy to construct analog�digital meter that can be used for quantitative measurements of self-assembled gold monolayers. The instrument is capable of measuring voltage, current, and voltage or current drop through a specific area of the self-assembled monolayer utilizing a six-electrode array. Banana plugs and jacks are used for circuit construction allowing for component connections either in series or parallel, depending on the desired output. Potentiometers are included in the design for voltage and current reduction allowing for measurements of voltage or current drops in the micro range.}, number={7}, journal={JOURNAL OF CHEMICAL EDUCATION}, author={Gerber, Ralph W. and Oliver-Hoyo, Maria}, year={2007}, month={Jul}, pages={1177–1179} }
 @article{oliver-hoyo_gerber_2007, title={From the research bench to the teaching laboratory: Gold nanoparticle layering}, volume={84}, ISSN={["1938-1328"]}, DOI={10.1021/ed084p1174}, abstractNote={The emphasis currently being placed on research and development of nanotechnology strongly supports the introduction of nanoscience techniques and methodology into the undergraduate chemistry laboratory curriculum. The procedures presented within are designed for undergraduate chemistry students to experiment with synthetic, mechanistic, and measurable properties of gold nanoparticles and layering techniques. Methodology involves the synthesis of gold colloidal suspensions, attachment of a functional group to glass with subsequent creation of self-assembled monolayers (SAMS) through deposition of gold nanoparticles, and measurements of wavelengths, absorbance, and conductivity. Educational emphasis includes an understanding of the nanoscale and an exposure to nanotechnology through the synthesis and layering of gold nanoparticles.}, number={7}, journal={JOURNAL OF CHEMICAL EDUCATION}, author={Oliver-Hoyo, Maria and Gerber, Ralph W.}, year={2007}, month={Jul}, pages={1174–1176} }