Ion-Diffusion Management Enables All-Interface Defect Passivation of Perovskite Solar Cells

doi:10.1002/adma.202301624

IMR OpenIR

	Ion-Diffusion Management Enables All-Interface Defect Passivation of Perovskite Solar Cells
	Shen, Lina 1; Song, Peiquan 1; Zheng, Lingfang 1; Wang, Lipeng 2; Zhang, Xiaguang 3; Liu, Kaikai 1; Liang, Yuming 1; Tian, Wanjia 1; Luo, Yujie 1; Qiu, Jianhang 2; Tian, Chengbo 1; Xie, Liqiang 1; Wei, Zhanhua 1
通讯作者	Xie, Liqiang(lqxie@hqu.edu.cn) ; Wei, Zhanhua(weizhanhua@hqu.edu.cn)
	2023-08-07
发表期刊	ADVANCED MATERIALS
ISSN	0935-9648
页码	10
摘要	Perovskite solar cells (PSCs) have demonstrated over 25% power conversion efficiency (PCE) via efficient surface passivation. Unfortunately, state-of-the-art perovskite post-treatment strategies can solely heal the top interface defects. Herein, an ion-diffusion management strategy is proposed to concurrently modulate the top interfaces, buried interfaces, and bulk interfaces (i.e., grain boundaries) of perovskite film, enabling all-interface defect passivation. Specifically, this method is enabled by applying double interactive salts of octylammonium iodide (OAI) and guanidinium chloride (GACl) onto the 3D perovskite surface. It is revealed that the hydrogen-bonding interaction between OA(+) and GA(+) decelerates the OA(+) diffusion and therefore forms a dimensionally broadened 2D capping layer. Additionally, the diffusion of GA(+) and Cl- determines the composition of the bulk and buried interface of PSCs. As a result, n-inter-i-inter-p, i.e., five-layer structured PSCs can be obtained with a champion PCE of 25.43% (certified 24.4%). This approach also enables the substantially improved operational stability of perovskite solar cells.
关键词	defect passivation ion diffusion perovskite solar cells voltage loss
资助者	National Natural Science Foundation of China ; Natural Science Foundation of Fujian Province
DOI	10.1002/adma.202301624
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[22179042] ; National Natural Science Foundation of China[U21A2078] ; National Natural Science Foundation of China[51902110] ; Natural Science Foundation of Fujian Province[2020J06021] ; Natural Science Foundation of Fujian Province[2020J01064]
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS类目	Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:001042452700001
出版者	WILEY-V C H VERLAG GMBH
引用统计	被引频次：8[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/178808
专题	中国科学院金属研究所
通讯作者	Xie, Liqiang; Wei, Zhanhua
作者单位	1.Huaqiao Univ, Coll Mat Sci & Engn, Inst Luminescent Mat & Informat Displays, Xiamen Key Lab Optoelect Mat & Adv Mfg, Xiamen 361021, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 3.Henan Normal Univ, Coll Chem & Chem Engn, Collaborat Innovat Ctr Henan Prov Green Mfg Fine C, Key Lab Green Chem Media & React,Minist Educ, Xinxiang 453007, Peoples R China
推荐引用方式 GB/T 7714	Shen, Lina,Song, Peiquan,Zheng, Lingfang,et al. Ion-Diffusion Management Enables All-Interface Defect Passivation of Perovskite Solar Cells[J]. ADVANCED MATERIALS,2023:10.
APA	Shen, Lina.,Song, Peiquan.,Zheng, Lingfang.,Wang, Lipeng.,Zhang, Xiaguang.,...&Wei, Zhanhua.(2023).Ion-Diffusion Management Enables All-Interface Defect Passivation of Perovskite Solar Cells.ADVANCED MATERIALS,10.
MLA	Shen, Lina,et al."Ion-Diffusion Management Enables All-Interface Defect Passivation of Perovskite Solar Cells".ADVANCED MATERIALS (2023):10.