| 학회 |
한국고분자학회 |
| 학술대회 |
2019년 봄 (04/10 ~ 04/12, 부산컨벤션센터(BEXCO)) |
| 권호 |
44권 1호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
The Change of Cathode Buffer Layer's Contact Property based on Hydroxyl Position of Pyridine Derivatives in Organic Solar Cells |
| 초록 |
The interface engineering is essential prerequisites for high-efficiency organic solar cells (OSCs). A modification of the interface holds promise for many tunable contact properties. Especially, the modification between a cathode buffer layer and an active layer can tune the contact property from ohmic to rectifying by introducing materials with a dipole. In this study, hydroxide substituted-pyridine derivatives, named 2-hydroxypyridine (2-OH-Py) and 4-hydroxypyridine (4-OH-Py), were inserted with a device configuration of ITO/ZnO/x-OH-Py/PTB7:PC71BM/MoO3/Ag, in which x means 2 or 4. An interface dipole difference, induced by the other position of the hydroxy group, was showed apparently in the efficiency of the OSCs. A power conversion efficiency (PCE) of 2-OH-Py reached up to 7.61%, while the rest one was only up to 4.69%. The work function of the modified interface also showed the results which have the same tendency with PCE. |
| 저자 |
진호철, 정미진, 이준호, Sabrina Aufar Salma, Ratna Dewi Maduwu, 김주현
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| 소속 |
부경대 |
| 키워드 |
Cathode Buffer Layer; Contact Property; Hydroxyl Position; Organic Solar Cells
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| E-Mail |
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