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Seminar «Synthesis and photophysical property studies of new porphyrinoid-functional materials»

Dr Andrey Moiseev
February 6, 2014
12.00 – 13.30
Beijing – 1 Auditorium, China cluster (Skolkovo School of Management)

SEMINAR ABSTRACT:
Organic chemistry is a great tool to design and accomplish synthesis of new materials with interesting photophysical properties. Starting from simple porphyrin system and going towards extended porphyrins afford light absorbing units for complete solar spectrum coverage. Synthesis of porphyrin, benzoporphyrin and phthalocyanine derivatives was accomplished and different zinc porphyrinoid – naphthalene diimide (methyl viologen) dyads are proposed. Photoinduced charge separation followed by two electron transfer steps should lead to long lived charge separated states and as result good photovoltaic properties. Also highly soluble platinum benzoporphyrins were synthesized and found as efficient light absorbing materials with high phosphorescence quantum yields. Use of these benzoporphyrins in combination with perylene could greatly enhance light absorption properties of the resulted upconversion system (perylene triplet fission). Similar benzoporphyrin-acene (rubrene, pentacene) dyads were proposed as singlet fission materials. The goal of my research project is synthesis and properties studies of new light-interacting materials. Study of their properties with steady state and time-resolved spectroscopy (UV/vis, IR and EPR) would help to understand photophysical events at short time scale and use this valuable information for important practical applications.

SPEAKER INTRODUCTION:
Dr Andrey Moiseev got his chemical engineer degree at Mendeleev University of Chemical Technology of Russia. He did his PhD in Photochemical Sciences at Center for Photochemical Studies, Bowling Green State University (USA).
Dr Moiseev’s postdoctoral studies were done at Brock University (Canada) and McMaster University (Canada). Also he was working as research associate/EPR facility manager at Chemistry Department, McGill University (Canada). Andrey’s research interests are artificial systems for harvesting solar light similar to that of natural photosynthesis, photophysics, photochemistry, materials chemistry, organic synthesis, time-resolved and laser spectroscopy. He would like to develop three research programs: organic photovoltaics, singlet fission and up-conversion materials.

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