| 학회 |
한국고분자학회 |
| 학술대회 |
2020년 가을 (10/05 ~ 10/08, 부산컨벤션센터(BEXCO)) |
| 권호 |
45권 1호 |
| 발표분야 |
분자전자 부문위원회 I |
| 제목 |
Green-Solvent-Processable Hole Transport Polymers with Lead-Capturability in Perovskite Solar Cells |
| 초록 |
As hole-transporting materials (HTM) of perovskite solar cells (PSCs) are developed, diverse functionalities are required for next-generation devices. A novel semiconducting polymer, alkoxy-PTEG, can be soluble even in nonaromatic and polar solvents, such as 3-methylcyclohexanone (3-MC), and can chelate with lead ion in perovskite which is harmful chemical. Finally, alkoxy-PTEG device without any dopants processed with 3-MC shows power conversion efficiency (PCE) of 19.9% and a device with 2-methyl anisole, which is also known as aromatic solvents, exhibits PCE of 21.2% in a tin oxide planar structure. The chelating ability of TEG groups with lead ions shows moderate strength (Kbinding = 2.76) which is measured by nuclear magnetic resonance. This is the first report providing the solutions of lead leakage. |
| 저자 |
박상아, 이준우, 최현태, 이대환, 최예림, 김성룡, 박태호
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| 소속 |
POSTECH |
| 키워드 |
Semiconducting polymer; Green solvent processing; Perovskite solar cell; Hole transporting material
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| E-Mail |
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