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Updated: May 20, 2026

Developing Photosensitizer-Cobaloxime Hybrids for Solar-Driven H2 Production in Aqueous Aerobic Conditions
Published on: October 5, 2019
Hybrid system based on quantum dots and photosystem 2 core complex
E G Maksimov1, V N Kurashov, M D Mamedov
1Department of Biophysics, Biology Faculty, Lomonosov Moscow State University, 119991 Moscow, Russia. emaksimoff@yandex.ru
Abstract:
We show that semiconductor nanocrystals (quantum dots, QD) can be used to increase the absorption capacity of pigment-protein complexes. In a mixture of photosystem 2 core complex (PS2) and QD, the fluorescence of the latter decreases several-fold due to the transfer of the absorbed energy to the PS2 core complex. We discuss Förster's inductive-resonance mechanism as a possible way of energy transfer in donor-acceptor pairs QD-PS2 core complex. Calculations based on the experimental data show that the enhancement of PS2 fluorescence and the rate of Q(A) reduction increase up to 60% due to efficient energy migration from QD to PS2.
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