| 학회 |
한국고분자학회 |
| 학술대회 |
2019년 봄 (04/10 ~ 04/12, 부산컨벤션센터(BEXCO)) |
| 권호 |
44권 1호 |
| 발표분야 |
분자전자 부문위원회 I |
| 제목 |
Tailoring Chemical and Morphological Properties of Graphene Oxide via γ-ray Irradiation for Enhanced Efficiency of Perovskite Solar Cells |
| 초록 |
In this study, we demonstrate that surface chemistry of graphene oxide (GO) is effectively tailored by γ-ray irradiation, and the tailored properties of GO can contribute to the enhancement of the performance of perovskite solar cells. Aqueous GO was exposed to high energy 60Co γ-ray, which resulted in oxidation of GO: The reaction induced by γ-ray irradiation increased the oxygen content of the GO and scattered large GO agglomerates into GO sheets with small lateral dimensions, which leads to uniform distribution in PEDOT:PSS layer. In addition, PEDOT:PSS layer with γ-GO exhibited higher hydrophobicity than the pristine PEDOT:PSS layer, which facilitated the uniform grain growth of perovskite. As a result, GO with tailored chemical and morphological properties significantly improved the hole transport properties in perovskite solar cells. |
| 저자 |
조재상1, 장웅식1, 이민지1, 문성식2, 박종혁3, 왕동환1
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| 소속 |
1중앙대, 2Univ. of Minnesota, 3연세대 |
| 키워드 |
γ-ray; Graphene; Perovskite; Photovoltaics; PEDOT:PSS
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| E-Mail |
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