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| Type |
Poster Presentation |
| Area |
Physical Chemistry |
| Room No. |
Event Hall |
| Time |
4월 20일 (금요일) 11:00~12:30 |
| Code |
PHYS.P-85 |
| Subject |
The cause of the efficiency difference due to the difference of P3HT / PC61BM / PC71BM composition of organic photovoltaics (OPV)
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| Authors |
JIHYE NA, Rakwoo Chang*
Department of Chemistry, Kwangwoon University, Korea
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| Abstract |
It has been found that the efficiency of organic solar cells depends on the type and number of active layers. But for whatever reason, it's not known yet. So, since poly(3-hexyl-thiophene) (P3HT), phenyl-C61-butyric acid methyl ester (PC61BM) and [6,6]-phenyl C71 butyric acid methyl ester (PC71BM) are used together with chlorobenzene (CB) as a solvent as the constituent material of the active layer, P3HT is used as a donor and PC61BM and PC71BM as and acceptor. And we made two binary systems (P3HT, PC61BM / P3HT, PC71BM) and one ternary system (P3HT, PC61BM, PC71BM) using coarse-grain molecular dynamic simulation. We also observed how the morphology of the systems changed and also for what reason the difference in efficiency occurred. Two types of systems were tested with the solvent (CB). One is to remove the solvent all at once, and the other is to remove by 10 % in 100 ns. As a result of the study, it was found that the morphology is collapsed less in the Ternary system than the binary systems because the z axis length of the simulation box is short. And we found that the PC71BM molecules of the system consisting of P3HT and PC71BM among the binary systems had the strongest attraction among the PC71BM molecules and fast aggregation. |
| E-mail |
najihye1128@hanmail.net |
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121st General Meeting of the KCS