| 학회 |
한국고분자학회 |
| 학술대회 |
2015년 봄 (04/08 ~ 04/10, 대전컨벤션센터) |
| 권호 |
40권 1호 |
| 발표분야 |
대학원생 구두발표 (영어발표, 발표15분) |
| 제목 |
Simultaneous enhancement of the efficiency and stability of organic solar cells using PEDOT:PSS grafted with polymeric additive buffer layer |
| 초록 |
We report a simple processing method to simultaneously improve the efficiency and stability of organic solar cells (OSCs). Poly(4-styrene sulfonate)-doped poly(3,4-ethylenedioxy-thiophene (PEDOT:PSS), widely used as hole transport layer (HTL) in OSCs, tends to accelerate the degradation of devices because of its hygroscopic and acidic properties. In this regard, we have modified PEDOT:PSS to reduce its hygroscopic and acidic properties by using PEDOT:PSS grafted with polymeric additive buffer layer in order to improve the efficiency and stability of OSCs. As a result, the power conversion efficiency (PCE) increased by 21%, from 2.57% up to 3.11%. The half-life of OSCs with PEDOT:PSS modified with polymeric additive buffer layer also increased up to 3.5 times compared to that of devices with pristine PEDOT:PSS buffer layer. |
| 저자 |
이정준1, 이승환1, 김선주2, 최향희1, 김중현1
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| 소속 |
1연세대, 2중앙대 |
| 키워드 |
Organic solar cell; PEDOT:PSS; Condensation reaction; Work function; Stability
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| E-Mail |
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