New narrow-band-gap thiazoloquinoxaline-containing polymers and their use in solar cells with bulk heterojunction
- Авторлар: Keshtov M.1, Kuklin S.1, Konstantinov I.1, Krayushkin M.2, Radychev N.3, Khokhlov A.1
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Мекемелер:
- Nesmeyanov Institute of Organoelement Compounds
- Zelinskii Institute of Organic Chemistry
- Carl von Ossietzky University of Oldenburg
- Шығарылым: Том 471, № 2 (2016)
- Беттер: 373-377
- Бөлім: Chemistry
- URL: https://journals.rcsi.science/0012-5008/article/view/153869
- DOI: https://doi.org/10.1134/S001250081611001X
- ID: 153869
Дәйексөз келтіру
Аннотация
Two new regioregular polymers P1 and P2 with structure of type D–A1–D–A2 have been prepared. The polymers exhibit strong light absorption in the range 300–1100 nm and have band gaps of 1.09 and 1.11 eV, respectively. The HOMO and LUMO energies for P1 and P2 are–5.08/–3.81 and–5.16/–3.85 eV, respectively. Polymer solar cells (PSC) based on P1: PC71BM (1: 2, v/v) and P2: PC71BM (1: 1, v/v) have open-circuit voltage Voc, short circuit current Jsc, and efficiency of 0.79 and 0.84 V, 8.32 and 9.54 mA/cm2, 3.5 and 4.7%, respectively. The PSC based on P2 exhibits higher characteristics due to the presence of fluorine atoms in the structure: their strong electron-withdrawing properties decrease the HOMO level of polymer P2 as compared with that of P1, which increases the Voc value. Moreover, the formation of additional S∙∙∙F contacts leads to the growth of ordering and crystallinity of polymer P2 as compared with P1, which favors an increase in the values of Jsc and filling factor.
Авторлар туралы
M. Keshtov
Nesmeyanov Institute of Organoelement Compounds
Хат алмасуға жауапты Автор.
Email: keshtov@ineos.ac.ru
Ресей, ul. Vavilova 28, Moscow, 119991
S. Kuklin
Nesmeyanov Institute of Organoelement Compounds
Email: keshtov@ineos.ac.ru
Ресей, ul. Vavilova 28, Moscow, 119991
I. Konstantinov
Nesmeyanov Institute of Organoelement Compounds
Email: keshtov@ineos.ac.ru
Ресей, ul. Vavilova 28, Moscow, 119991
M. Krayushkin
Zelinskii Institute of Organic Chemistry
Email: keshtov@ineos.ac.ru
Ресей, Leninskii pr. 47, Moscow, 119991
N. Radychev
Carl von Ossietzky University of Oldenburg
Email: keshtov@ineos.ac.ru
Германия, Ammerländer Heerstr. 114-118, Oldenburg, 26129
A. Khokhlov
Nesmeyanov Institute of Organoelement Compounds
Email: keshtov@ineos.ac.ru
Ресей, ul. Vavilova 28, Moscow, 119991