화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2019년 가을 (10/09 ~ 10/11, 제주컨벤션센터)
권호 44권 2호
발표분야 분자전자 부문위원회 II
제목 Enhanced high performance of inverted polymer solar cells using new small-molecule electrolyte doped ZnO as the electron transport layer
초록 Small-molecule electrolyte (C6-E-OTs) hybridized ZnO layer is provided as the electron transporting layer. The device based on the blend of PTB7 and PC71BM as the active layer shows an enhanced power conversion efficiency (PCE) from 7.6% based on ZnO to 8.8% using the C6-E-OTs hybridized ZnO layer. The device can be further improved by simultaneously using a C6-E-OTs hybridized ZnO layer and a 5 nm-thick C6-E-OTs as the interlayer. The synergy effect of hybridization and interlayer enhanced the PCE of the device to 8.9%, which is a 17.1% increase in comparison with the device based on ZnO. The presence of C6-E-OTs hybridized ZnO and a 5 nm of C6-E-OTs as the interlayer in the device with PTB7-Th as the donor significantly improves the PCE from 8.0% based on ZnO to 9.4%, resulting in a 17.5% enhancement. Hybridized ZnO layer process can overcome the limitation faced by the thickness tolerance of interlayer.
저자 김주현, 홍성수, 이근대, 안병현
소속 부경대
키워드 polymer solar cell; organic electrolyes; interface; interlayer
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