Synthesis of molecular complexes based on porphyrins for the investigation of the energy transfer and primary charge separation in photosynthesis

1993 ◽  
Vol 62 (10) ◽  
pp. 963-979 ◽  
Author(s):  
S E Gribkova ◽  
Rima P Evstigneeva ◽  
Valentina N Luzgina
Keyword(s):  
Energy Transfer ◽  
Charge Separation ◽  
Molecular Complexes ◽  
Primary Charge Separation

Primary Charge Separation and Energy Transfer in the Photosystem I Reaction Center of Higher Plants

1996 ◽  
Vol 100 (29) ◽  
pp. 12086-12099 ◽  
Author(s):  
Nigel T. H. White ◽  
Godfrey S. Beddard ◽  
Jonathan R. G. Thorne ◽  
Tim M. Feehan ◽  
Tia E. Keyes ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Reaction Center ◽  
Photosystem I ◽  
Charge Separation ◽  
Higher Plants ◽  
Primary Charge Separation

scholarly journals Динамика термолюминесценции при двойном лазерном Vis-IR возбуждении молекул эозина с кислородом и наночастицами серебра в пленке поливинилбутираля

2019 ◽  
Vol 126 (2) ◽  
pp. 126
Author(s):  
Е.И. Константинова ◽  
Б.Ф. Минаев ◽  
А.В. Цибульникова ◽  
Р.Ю. Боркунов ◽  
М.В. Царьков ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Energy Transfer ◽  
Vibrational Energy ◽  
Molecular Complexes ◽  
Polyvinyl Butyral ◽  
Dye Molecules ◽  
Temperature Conductivity ◽  
Transfer Processes ◽  
Vibrational Energy Distribution ◽  
532 Nm

AbstractElectronic and vibrational energy transfer processes taking place in molecular complexes in a polymer are investigated under dual-wavelength (visible at λ = 532 nm and IR at wavelength λ = 10.6 μm) laser photoexcitation of eosin molecules ( С = 4 × 10^–4 М) in air and without it ( р ≈ 10^–4 Torr) in thin polyvinyl butyral (PVB) films containing silver nanoparticles ( R ≈ 36 nm) prepared by laser ablation. Generation of singlet oxygen, singlet–triplet annihilation, and enhancement of plasmon quenching of dye fluorescence are studied. Thermal-energy transfer processes in thin PVB films following pulsed IR excitation are simulated, and the temperature conductivity coefficients of the polymer films in the presence of silver nanoparticles are calculated. Low-temperature processes in PVB films containing dye molecules taking place after IR excitation are investigated, and the mechanism for accelerating intercombination S _1 → Т _1 transitions as a result of thermal heating and intramolecular vibrational-energy distribution is explained.

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