| 학회 |
한국고분자학회 |
| 학술대회 |
2021년 가을 (10/20 ~ 10/22, 경주컨벤션센터) |
| 권호 |
46권 2호 |
| 발표분야 |
분자전자 부문위원회 Ⅰ,Ⅱ |
| 제목 |
Aniline-based Hole Transport Layer Containing Fluorinated Protonic Acid Dopant for High-Efficiency and Air Stable Organic Solar Cells |
| 초록 |
The selection of interfacial layers in organic solar cells (OSCs) is crucial for enhancing their power conversion efficiency (PCE) and stability. PEDOT:PSS is the most widely used hole transport layer (HTL); however, device stability is often severely degraded, owing to the strong acidity and hygroscopicity of PEDOT:PSS. Herein, we report a new efficient HTL system comprising an oligo(aniline) host (PBD) and a protonic acid dopant (PFBSA), and demonstrate its use in OSC devices. Desirable properties like high transmittance, excellent conductivity, and appropriate work function establish the suitability of the PBD:PFBSA film as an HTL. Thus, a PBD:PFBSA HTL is employed in the PM6:Y6-based OSC system to achieve a PCE of 15.24%. Importantly, the PBD:PFBSA HTL-based OSC exhibits significantly higher device stability than the PEDOT:PSS HTL. Our results highlight the successful design of an oligo(aniline)-based material and its practical application as an effective HTL for OSCs. |
| 저자 |
Ngoc-Lan Phan Tan, 김진석, 이승진, 김건우, 김범준
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| 소속 |
Korea Advanced Institute of Science and Technology (KAIST) |
| 키워드 |
hole transport layer; organic solar cells; aniline; protonic acid doping
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| E-Mail |
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