Improving the efficiency of inverted mixed-organic-cation perovskite absorber based photovoltaics by tailing the surface roughness of PEDOT: PSS thin film

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題名:	Improving the efficiency of inverted mixed-organic-cation perovskite absorber based photovoltaics by tailing the surface roughness of PEDOT: PSS thin film
作者:	吳春桂;Chen, Cheng-Chiang;Chang, Sheng Hsiung;Chen, Lung-Chien;Kao, Feng-Sheng;Cheng, Hsin-Ming;Yeh, Shih-Chieh;Chen, Chin-Ti;Wu, Wen-Ti;Tseng, Zong-Liang;Chuang, Chuan Lung;Wu, Chun-Guey
貢獻者:	理學院化學學系
關鍵詞:	Experiments;Luminescence;Mixed-organic-cation perovskite absorbers;Nanosecond time-resolved photoluminescence;PEDOT:PSS thin films;Perovskite;Photovoltaic cells;Photovoltaics;Scanning electron microscopy;Solar energy;Thin films;Toluene
日期:	2016-09-01
上傳時間:	2026-04-21 14:48:08 (UTC+8)
出版者:	Elsevier Ltd.;New York: Elsevier Ltd
摘要:	摘要： •Mixed-organic-cation perovskite absorbers were fabricated by solution process.•The properties of mixed-organic-cation perovskite absorbers were characterized.•The surface roughness of the PEDOT:PSS thin film influences the JSC.•The PCE was improved from 12.2% to 13.3% by tailing the surface roughness of the PEDOT:PSS thin film. A phase-pure mixed-organic-cation perovskite absorber (MOC-PA) was fabricated by a one-step spin-coating process with a toluene washing treatment, and the structural, optical and excitonic properties of the resultant MOC-PAs were then characterized by scanning electron microscopy, X-ray diffractometry, absorbance spectrometer, and time-resolved photoluminescence. The averaged power conversion efficiency (PCE) of inverted phase-pure MOC-PA based photovoltaics could be improved from 12.21% to 13.28% by tailing the surface roughness of the poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) thin film from 1.43nm to 1.84nm. The improved PCE is mainly due to the increased short-circuit current density (JSC) which is attributed to the improvement of the exciton dissociation, as confirmed by photoluminescence experiments. In addition, the experimental results indicate that the PCE can be further improved by increasing the crystallinity of MOC-PAs. 出版者： New York: Elsevier Ltd 出版日期： 2016-09-01 出處： Solar Energy, 2016-09, Vol.134, p.445-451 版權： 2016 Elsevier Ltd 版權： Copyright Pergamon Press Inc. Sep 2016 識別號： ISSN: 0038-092X 識別號： EISSN: 1471-1257 識別號： DOI: 10.1016/j.solener.2016.05.032 識別號： CODEN: SRENA4
顯示於類別:	[化學學系] 期刊論文

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