| Autor: |
Ying-Ying Du, De-Qu Lin, Guang-Hua Chen, Xin-Yuan Bai, Long-Xi Wang, Rui Wu, Jia-Ou Wang, Hai-Jie Qian, Hong-Nian Li |
| Předmět: |
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| Zdroj: |
Chinese Physics B; Aug2018, Vol. 27 Issue 8, p1-1, 1p |
| Abstrakt: |
ITIC is the milestone of non-fullerene small molecule acceptors used in organic solar cells. We study the electronic states and molecular orientation of ITIC film using photoelectron spectroscopy and x-ray absorption spectroscopy. The negative integer charge transfer energy level is determined to be 4.00 ± 0.05 eV below the vacuum level, and the ionization potential is 5.75 ± 0.10 eV. The molecules predominantly have the face-on orientation on inert substrates as long as the surfaces of the substrates are not too rough. These results provide the physical understanding of the high performance of ITIC-based solar cells, which also afford implications to design more advanced photovoltaic small molecules. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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