@article{deng_lazorski_castellano_2015, title={Photon upconversion sensitized by a Ru(II)-pyrenyl chromophore}, volume={373}, number={2044}, journal={Philosophical Transactions. Mathematical, Physical, and Engineering Sciences.}, author={Deng, F. and Lazorski, M. S. and Castellano, F. N.}, year={2015} } @article{mosca_khnayzer_lazorski_danilov_castellano_anzenbacher_2015, title={Sensing of 2,4,6-Trinitrotoluene (TNT) and 2,4-Dinitrotoluene (2,4-DNT) in the Solid State with Photoluminescent Ru-II and Ir-III Complexes}, volume={21}, ISSN={["1521-3765"]}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-84929926404&partnerID=MN8TOARS}, DOI={10.1002/chem.201405717}, abstractNote={AbstractA series of metal–organic chromophores containing RuII or IrIII were studied for the luminometric detection of nitroaromatic compounds, including trinitrotoluene (TNT). These complexes display long‐lived, intense photoluminescence in the visible region and are demonstrated to serve as luminescent sensors for nitroaromatics. The solution‐based behavior of these photoluminescent molecules has been studied in detail in order to identify the mechanism responsible for metal‐to‐ligand charge‐transfer (MLCT) excited state quenching upon addition of TNT and 2,4‐dinitrotoluene (2,4‐DNT). A combination of static and dynamic spectroscopic measurements unequivocally confirmed that the quenching was due to a photoinduced electron transfer (PET) process. Ultrafast transient absorption experiments confirmed the formation of the TNT radical anion product following excited state electron transfer from these metal complexes. Reported for the first time, photoluminescence quenching realized through ink‐jet printing and solid‐state titrations was used for the solid‐state detection of TNT; achieving a limit‐of‐quantitation (LOQ) as low as 5.6 ng cm−2. The combined effect of a long‐lived excited state and an energetically favorable driving force for the PET process makes the RuII and IrIII MLCT complexes discussed here particularly appealing for the detection of nitroaromatic volatiles and related high‐energy compounds.}, number={10}, journal={CHEMISTRY-A EUROPEAN JOURNAL}, author={Mosca, Lorenzo and Khnayzer, Rony S. and Lazorski, Megan S. and Danilov, Evgeny O. and Castellano, Felix N. and Anzenbacher, Pavel, Jr.}, year={2015}, month={Mar}, pages={4056–4064} } @article{lazorski_castellano_2014, title={Advances in the light conversion properties of Cu(I)-based photosensitizers}, volume={82}, ISSN={["0277-5387"]}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-84907906041&partnerID=MN8TOARS}, DOI={10.1016/j.poly.2014.04.060}, abstractNote={The need to develop low-cost, sustainable, earth abundant fuel sources is becoming paramount as the rate of global energy consumption continues to increase. Toward this goal, solar energy conversion is an obvious choice, yet the current molecular based technologies still rely heavily on expensive, non-earth abundant photosensitizers, which limits the net benefits of these systems. Complexes of copper(I) have been recognized for decades as viable low-cost, earth abundant alternative photosensitizers in solar energy conversion technologies; however, when used in solution based applications, issues such as geometrical distortions associated with photoexcitation and ligand lability has frustrated numerous research efforts. Fortunately, these investigations have not been in vain, and many investigations have successfully circumvented the aforementioned issues. Recent reports on Cu(I) based photosensitizers demonstrate that they are beginning to rival the performance metrics of the more costly, less earth abundant species typically used in solution-based solar energy conversion schemes. Therefore, this minireview focuses on the most recent and influential advances made in the field of Cu(I) based photosensitizers.}, journal={POLYHEDRON}, author={Lazorski, Megan S. and Castellano, Felix N.}, year={2014}, month={Nov}, pages={57–70} }