| 학회 |
한국고분자학회 |
| 학술대회 |
2015년 가을 (10/06 ~ 10/08, 대구컨벤션센터(EXCO)) |
| 권호 |
40권 2호 |
| 발표분야 |
고분자가공/복합재료 |
| 제목 |
Morphological engineering via DIO processing additive in donor-acceptor bulk-heterojunction solar cells |
| 초록 |
In this research, organic photovoltaic devices based on bulk-heterojunction (BHJ) from Poly(3-hexylthiophene-2,5-diyl) (P3HT) / [6,6]-phenyl C71 butyric acid methyl ester (PC71BM) were successfully fabricated to determine the optimization of solvent additive of 1,8-diiodooctane (DIO). The BHJ devices with DIO show improved short circuit current (JSC) correlated to the improved device performance, since the DIO in P3HT:PC71BM BHJ affects the morphology in terms of the surface roughness and crystal size. Furthermore, the DIO contributes to the enhanced charge carrier transport of the BHJ device, because the decreased fluorescence and increased hole mobility as found through Raman spectra analysis and SCLC measurement, respectively. The device with optimized concentration (1 volume %) of DIO accomplishes 5% improved photovoltaic performance due to the favorable structural property and enhanced carrier mobility. |
| 저자 |
박찬언1, 안선용2, 김유진1, 왕동환2, 장웅식2
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| 소속 |
1포항공과대, 2중앙대 |
| 키워드 |
organic photovoltaic device; nanomorphology; crytal size; additive; fluorescence; hole mobility
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| E-Mail |
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