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학술지 Efficiency Enhancement of Semi-transparent Sandwich Type CH3NH3PbI3 Perovskite Solar Cells with Island Morphology Perovskite Film by Introduction of Polystyrene Passivation Layer
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저자
허진혁, 장민혁, 이민호, 한혜지, 강만구, 이명래, 임상혁
발행일
201611
출처
Journal of Materials Chemistry A : Materials for Energy and Sustainability, v.4 no.42, pp.16324-16329
ISSN
2050-7488
출판사
Royal Society of Chemistry (RSC)
DOI
https://dx.doi.org/10.1039/c6ta05497h
협약과제
16MB1500, 차세대 고집적/고효율 유연 ICT 소자용 3D 창의 소재 원천 기술, 이명래
초록
Highly semi-transparent sandwich type CH3NH3PbI3 (MAPbI3) island perovskite solar cells with high efficiency were constructed by introduction of a polystyrene (PS) passivation interlayer. The PS insulator can prevent direct contact between the TiO2 electron conductor and the polytriarylamine hole conductor. The PS passivation interlayer could be selectively deposited on bare TiO2 by a consecutive spin-coating and spin-washing process. The average visible transmittance of semi-transparent sandwich type MAPbI3 island perovskite solar cells with and without PS passivation layer was ~20.9% and ~18.6%, respectively; its power conversion efficiency was 10.2% for forward scan condition and 10.6% for reverse scan condition (average = 6.17% 짹 2.32% for 40 samples) and 5.9% for forward scan condition and 6.6% for reverse scan condition (average = 2.93% 짹 1.57% for 40 samples); and its efficiency degradation for 30 days was ~5% and ~9%, respectively.
KSP 제안 키워드
CH3NH3PbI3 perovskite, Conversion efficiency(C.E.), Hole conductor, Island morphology, Its efficiency, Perovskite films, Reverse scan, Semi-transparent, Spin coating, Visible transmittance, Washing process