| 학회 |
한국고분자학회 |
| 학술대회 |
2021년 가을 (10/20 ~ 10/22, 경주컨벤션센터) |
| 권호 |
46권 2호 |
| 발표분야 |
분자전자 부문위원회 Ⅰ,Ⅱ |
| 제목 |
Novel IDTT-based additive engineering for surface passivation to boost efficiency and thermal stability of perovskite solar cells |
| 초록 |
Perovskite is expected as a next-generation optoelectronic material because of its optical properties and solution processability. A novel indacenodithieno[3,2-b]thiophene-based small molecule (IDTT-ThCz) is proposed as a new additive capable of interacting with perovskite layer. The IDTT-ThCz is introduced into the perovskite layer through anti-solvent treatment to effectively passivate the defects on the surface. In addition, this passivation method effectively suppresses degradation and improves charge extraction capability. As a result, the IDTT-ThCz-based solar cell recorded a high power conversion efficiency of 22.5% and maintained 95% compared to the initial PCE after 500 hours at 85°C thermal condition. These results showed noticeable PCE and stability compared to the perovskite solar cells using small additive reported so far |
| 저자 |
민지현, 김성룡, 김정수, 박태호
|
| 소속 |
포항공과대 |
| 키워드 |
perovskite solar cell; defect passivation; additive engineering
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| E-Mail |
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