화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2014년 가을 (10/06 ~ 10/08, 제주 ICC)
권호 39권 2호
발표분야 분자전자 부문위원회
제목 Solution processed inverted organic solar cells with hybrid inorganic/organic cathode interlayer
초록 Solution processible CdS with a high electron mobility and a CPE were utilized as cathode interlayer on ITO to construct inverted solar cells based on a P3HT as the polymer donor and PCBM as the acceptor. The power conversion efficiency (PCE) of the inverted solar cells without the cathode interlayer (only ITO) was 0.46% due to poor VOC of 0.197 V and FF of 34.3%. Using a thin CPE layer as a cathode interlayer significantly improved JSC of 9.733 mA/cm2, VOC to 0.557 V and FF to 44.4%, giving the PCE of 2.41%. Combined solution processed CdS and CPE layers deposited on ITO substrate enhanced the PCE of 2.61% with VOC of 0.594 V, and FF of 52.4%. Characteristics of devices with a ZnO cathode interlayer were also compared. Our results suggest that hybrid inorganic/organic materials are promising candidates as a cathode interlayer in high efficiency inverted solar cells through the modification of interface contacts.
저자 이정숙1, 서정화1, Bright Walker2, 김진영2, 박성흠3
소속 1동아대, 2울산과학기술대, 3부경대
키워드 inverted organic solar cell; hybrid; solution process
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