Surface engineering of ZnO electron transporting layer via Al doping for high efficiency planar perovskite solar cells

Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/104291

Title:	Surface engineering of ZnO electron transporting layer via Al doping for high efficiency planar perovskite solar cells
Authors:	張勝雄;Tseng, Zong-Liang;Chiang, Chien-Hung;Chang, Sheng-Hsiung;Wu, Chun-Guey
Contributors:	理學院光電科學與工程學系
Keywords:	AZO;CH3NH3PbI3;Solar cell;Surface modification;ZnO
Date:	2016-10-01
Issue Date:	2026-04-23 11:47:26 (UTC+8)
Publisher:	Elsevier BV;Elsevier Ltd
Abstract:	摘要： ZnO was known as a good electron transporting material for the planar perovskite solar cells (PSCs). The stability of perovskite cell based on ZnO electron transporting layer (ETL) however is not good, due to the basicity nature of ZnO, which will react with the proton on CH3NH3+ of perovskite. Doping was used successfully to modify the physicochemical properties of ZnO to improve the performance. High quality, fully covered Al doped ZnO (AZO) thin (~20nm) film on ITO substrate was successfully prepared by a sputtering method. Compared to the cell based on ZnO, perovskite cell using AZO as ETL has better stability, comparable Jsc, higher Voc and FF. The best AZO based perovskite cell achieves the highest power conversion efficiency of 17.6% with Voc of 1.07V which the highest Voc for the perovskite solar cell based on ZnO ETL. The improvement in the photovoltaic performance was due to AZO has higher conductivity, more resistance to the acid and better band matching with MAPbI3 compared to ZnO. The highly conducting and transparent AZO film was also used to replace ITO/ZnO as an anode as well as the ETL in the planer perovskite cell to achieve the PCE of 6.3%. Conventional planar perovskite solar cell based on sputtered made Al doped ZnO electron transport layer achieves the highest efficiency of 17.6% with Voc of 1.07V. [Display omitted] •Sputtered made, Al doped ZnO film can be applied as an electron transporting materials for high-efficiecny perovskite solar cell.•The atmosphere of the sputtering chamber can be used to control the properties of the resulting Al doped ZnO film.•The conductivity, acid resistance and band structure of the Al doped ZnO are key parameters effect the photovoltaic performance of the resulting cells. 出版者： Elsevier Ltd 出版日期： 2016-10 出處： Nano Energy, 2016-10, Vol.28, p.311-318 版權： 2016 Elsevier Ltd 識別號： ISSN: 2211-2855 識別號： DOI: 10.1016/j.nanoen.2016.08.035
Appears in Collections:	[Department of Optics and Photonics] journal & Dissertation

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