| 학회 |
한국고분자학회 |
| 학술대회 |
2018년 가을 (10/10 ~ 10/12, 경주컨벤션센터) |
| 권호 |
43권 2호 |
| 발표분야 |
분자전자 부문위원회 II |
| 제목 |
Significant Advance for Efficiency and Staibility for Inverted Planar Flexible Perovskite Solar Cells Using a Novel NDI-Based Polymer as the Electron Transport Layer |
| 초록 |
A new naphthalene diimide (NDI)‐based polymer with strong electron withdrawing dicyanothiophene (P(NDI2DT‐TTCN)) is designed for the electron transport layer (ETL) instead of the fullerene‐based ETL in inverted perovskite solar cells. Series of characterization techniques such as near‐edge X‐ray absorption fine‐structure spectroscopy, space‐charge‐limited current, electrochemical impedance spectroscopy, photoluminescence (PL) atomic force microscopy, scanning electron microscopy, grazing‐incidence wide‐angle X‐ray scattering, and time‐resolved PL decay, is used to demonstrate the interface interaction between perovskite and P(NDI2DT‐TTCN) or [6,6]‐phenyl‐C61‐butyric acid methyl ester (PCBM). It is found that P(NDI2DT‐TTCN) not only improves the electron extraction ability but also prevents ambient condition interference by forming a hydrophobic ETL surface. Furthermore, P(NDI2DT‐TTCN) has excellent mechanical stability with comparision to PCBM in flexible Pero‐SCs. |
| 저자 |
박성진1, 김홍일2, 최경원2, 임채성2, 류승운2, 박태호2
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| 소속 |
1포항공과대, 2POSTECH |
| 키워드 |
Flexible Perovskite solar cell; Electron Transport Layer; NDI-Based polymer; P(NDI2DT‐TTCN
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| E-Mail |
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