|
ИСТИНА |
Войти в систему Регистрация |
ИСТИНА ЦЭМИ РАН |
||
Star-shaped benzotriindole-based donor compounds for all–small–molecule non-fullerene organic solar cellsстатья Исследовательская статья
Статья опубликована в высокорейтинговом журнале
Статья опубликована в журнале из списка Web of Science и/или Scopus- Авторы: Balakirev D.O., Mannanov A.L., Emelianov N.A., Sukhorukova P.K., Kalinichenko A.K., Troshin P.A., Parashchuk D.Yu, Ponomarenko S.A., Luponosov Yu N.
- Журнал: Dyes and Pigments
- Год издания: 2023
- Издательство: Elsevier BV
- Местоположение издательства: Netherlands
- DOI: 10.1016/j.dyepig.2023.111343
- Аннотация: The recent success in the development of non-fullerene acceptors (NFAs) for organic solar cells (OSCs) encourages the search for novel efficient and complementary donor materials. Moreover, the in-depth understanding of the structure–property correlations for new generations of acceptor and donor materials is of great importance for the further progress in the field of OSCs. In this work the synthesis of a series of star-shaped small molecules based on benzotriindole (BTI) electron-donating core linked through bi– or terthiophene π-spacers to either hexyl dicyanovinyl or 2-ethylhexyl cyanoacetate electron-withdrawing terminal groups (EWGs) is reported. The thermal, optical and electrochemical properties of the molecules were carefully investigated and compared. The molecules were also explored as donor materials in non-fullerene (NF) OSCs in binary blends with well-known NFAs such as IDIC or Y6. The huge impact of the donor molecular structure on the device performance (up to 6 times difference in power conversion efficiency (PCE)) was evaluated due to significant difference in the active layer morphologies, which was successfully proved via scanning near-field infrared microscopy technique. The results obtained in this work demonstrate high potential of star-shaped BTI-based molecules to be used as donor materials with a new generation of NFAs and can be used for further molecular design of the highly efficient small molecule donors for NF OSCs.The work was financially supported by the Russian Science Foundation (grant number 19-73-10198) and carried out in ISPM RAS. NMR, IR and UV-vis absorption spectra were recorded using the equipment of Collaborative Access Center ”Center for Polymer Research” of Enikolopov Institute of Synthetic Polymeric Materials of the Russian Academy of Sciences with the financial support from the Ministry of Science and Higher Education of the Russian Federation (Contract FFSM-2021-0005). The device studies were done using equipment purchased under the Lomonosov Moscow State University Program of Development. Authors acknowledge Yu. Minenkov for the help with DFT calculations and O. Maloshitskaya for the help with MALDI-TOF experiments. IR-SNOM measurements were performed at FRC PCP MC RAS and supported by Ministry of Science and Higher Education of the Russian Federation (project No. 0089-2019-0010/AAAA-A19-119071190044-3).
- Добавил в систему: Лупоносов Юрий Николаевич
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|