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Effective Interface Defect Passivation via Employing 1-Methylbenzimidazole for Highly Efficient and Stable Perovskite Solar Cells

文献类型：期刊论文

作者Zheng, Haiying1,3; Liu, Guozhen2; Wu, Weiwei1,3; Xu, Huifen1,2,3; Pan, Xu2
刊名CHEMSUSCHEM
出版日期2021-07-05
关键词high performance passivation layer perovskite solar cells photovoltaics stability
ISSN号1864-5631
DOI10.1002/cssc.202101097
通讯作者Liu, Guozhen(gzliu@issp.ac.cn) ; Pan, Xu(xpan@rntek.cas.cn)
英文摘要Although the power conversion efficiencies (PCEs) of perovskite solar cells (PSCs) have made great progress, the surface and interface defects still affect their PCE and stability and hinder the commercialization. To overcome this problem, 1-methylimidazole (1-MIm) and 1-methylbenzimidazole (1-MBIm) were used as the interfacial passivation agents to passivate the defects at surface and interface. The results indicated that, in contrast to 1-MIm, 1-MBIm displayed a stronger Lewis coordination interaction with the uncoordinated Pb2+ to reduce the non-radiative recombination and also effectively improved the charge transfer capacity of perovskite films due to its strong pi-pi conjugate interaction, resulting in the better photovoltaic performance. As a result, the PCE of the champion 1-MBIm PSC was improved from 19.48 (pristine) to 21.22 % with a dramatically enhanced open-circuit voltage (V-oc=1.15 V). More importantly, a significant improvement in long-term stability was achieved for 1-MBIm perovskite devices, which was attributed to the high-quality perovskite film caused by the strong passivation effect of 1-MBIm and the hydrogen bond with water molecules. The results offers an efficient and facile strategy by interface engineering to fabricate high-performance and stable PSCs for commercial application.
WOS关键词CATION
资助项目Natural Science Foundation of Anhui Province[2008085QE208] ; CASHIPS Director's Fund[YZJJ2021QN20]
WOS研究方向Chemistry ; Science & Technology - Other Topics
语种英语
WOS记录号WOS:000669678900001
出版者WILEY-V C H VERLAG GMBH
资助机构Natural Science Foundation of Anhui Province ; CASHIPS Director's Fund
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/123436]  
专题中国科学院合肥物质科学研究院
通讯作者Liu, Guozhen; Pan, Xu
作者单位1.Anhui Univ, Inst Informat Technol, Hefei 230601, Peoples R China
2.Chinese Acad Sci, Inst Solid State Phys, Key Lab Photovolta & Energy Conservat Mat, Hefei 230031, Peoples R China
3.Anhui Univ, Inst Phys Sci, Hefei 230601, Peoples R China
推荐引用方式
GB/T 7714		 Zheng, Haiying,Liu, Guozhen,Wu, Weiwei,et al. Effective Interface Defect Passivation via Employing 1-Methylbenzimidazole for Highly Efficient and Stable Perovskite Solar Cells[J]. CHEMSUSCHEM,2021.
APA Zheng, Haiying,Liu, Guozhen,Wu, Weiwei,Xu, Huifen,&Pan, Xu.(2021).Effective Interface Defect Passivation via Employing 1-Methylbenzimidazole for Highly Efficient and Stable Perovskite Solar Cells.CHEMSUSCHEM.
MLA Zheng, Haiying,et al."Effective Interface Defect Passivation via Employing 1-Methylbenzimidazole for Highly Efficient and Stable Perovskite Solar Cells".CHEMSUSCHEM (2021).

入库方式： OAI收割

来源：合肥物质科学研究院

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