(Invited) Time Resolved EPR Study on Photoinduced Charge-Transfer Trap States in Thiophene-Thiazolothiazole Copolymers Films

2017 ◽  
Vol 16 (4) ◽  
pp. 539-546 ◽  
Author(s):  
C. Rémy ◽  
C. Allain ◽  
I. Leray

A series of π conjugated naphthalimide derivatives were prepared. Compounds display efficient photoinduced charge transfer in solution which was rationalized by time-resolved spectroscopy and modelled by TD-DFT calculations.


2000 ◽  
Vol 61 (15) ◽  
pp. 9917-9920 ◽  
Author(s):  
S. C. J. Meskers ◽  
P. A. van Hal ◽  
A. J. H. Spiering ◽  
J. C. Hummelen ◽  
A. F. G. van der Meer ◽  
...  

2017 ◽  
Vol 2018 (3-4) ◽  
pp. 272-277 ◽  
Author(s):  
Serhane Zerdane ◽  
Marco Cammarata ◽  
Lodovico Balducci ◽  
Roman Bertoni ◽  
Laure Catala ◽  
...  

1996 ◽  
Vol 93 ◽  
pp. 1697-1713 ◽  
Author(s):  
P Changenet ◽  
P Plaza ◽  
MM Martin ◽  
YH Meyer ◽  
W Rettig

2020 ◽  
Author(s):  
Zhengqing Tong ◽  
Margaret S. Cheung ◽  
Barry D. Dunietz ◽  
Eitan Geva ◽  
Xiang Sun

The nonequilibrium Fermi’s golden rule (NE-FGR) describes the time-dependent rate coefficient for electronic transitions, when the nuclear degrees of freedom start out in a <i>nonequilibrium</i> state. In this letter, the linearized semiclassical (LSC) approximation of the NE-FGR is used to calculate the photoinduced charge transfer rates in the carotenoid-porphyrin-C<sub>60</sub> molecular triad dissolved in explicit tetrahydrofuran. The initial nonequilibrium state corresponds to impulsive photoexcitation from the equilibrated ground-state to the ππ* state, and the porphyrin-to-C<sub>60</sub> and the carotenoid-to-C<sub>60</sub> charge transfer rates are calculated. Our results show that accounting for the nonequilibrium nature of the initial state significantly enhances the transition rate of the porphyrin-to-C<sub>60</sub> CT process. We also derive the instantaneous Marcus theory (IMT) from LSC NE-FGR, which casts the CT rate coefficients in terms of a Marcus-like expression, with explicitly time-dependent reorganization energy and reaction free energy. IMT is found to reproduce the CT rates in the system under consideration remarkably well.


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