IMR OpenIR
In Situ Passivation on Rear Perovskite Interface for Efficient and Stable Perovskite Solar Cells
Wang, Gaoxiang; Wang, Lipeng; Qiu, Jianhang; Yan, Zheng; Li, Changji; Dai, Chunli; Zhen, Chao; Tai, Kaiping; Yu, Wei; Jiang, Xin
2020-02-12
Source PublicationACS APPLIED MATERIALS & INTERFACES
Volume12Issue:6Pages:7690-7700
AbstractDespite the rocketing rise in power conversion efficiencies (PCEs), the performance of perovskite solar cells (PSCs) is still limited by the carrier transfer loss at the interface between perovskite (PVSK) absorbers and charge transporting layers. Here, we propose a novel in situ passivation strategy by using [6,6]-phenyl-C-61-butyric acid methyl ester (PCBM) to improve the charge dynamics at the rear PVSK/CTL interface in the n-i-p structure device. A pre-deposited PCBM-doped PbI2 layer is redissolved during PVSK deposition in our routine, establishing a bottom-up PCBM gradient that is facile for charge extraction. Meanwhile, the surface defects are in situ-passivated via PCBM-PVSK interaction, which substantially suppresses the trap-assisted recombination at the rear interface. Due to the synergistic effect of charge-extraction promotion and trap passivation, the fabricated PSCs deliver a champion PCE of 20.10% with attenuated hysteresis and improved long-term stability, much higher than the 18.39% of the reference devices. Our work demonstrates a promising interfacial engineering strategy for further improving the performance of PSCs.
DOI10.1021/acsami.9b18572
WOS IDWOS:000514256400093
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/83137
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Wang, Gaoxiang,Wang, Lipeng,Qiu, Jianhang,et al. In Situ Passivation on Rear Perovskite Interface for Efficient and Stable Perovskite Solar Cells[J]. ACS APPLIED MATERIALS & INTERFACES,2020,12(6):7690-7700.
APA Wang, Gaoxiang.,Wang, Lipeng.,Qiu, Jianhang.,Yan, Zheng.,Li, Changji.,...&Jiang, Xin.(2020).In Situ Passivation on Rear Perovskite Interface for Efficient and Stable Perovskite Solar Cells.ACS APPLIED MATERIALS & INTERFACES,12(6),7690-7700.
MLA Wang, Gaoxiang,et al."In Situ Passivation on Rear Perovskite Interface for Efficient and Stable Perovskite Solar Cells".ACS APPLIED MATERIALS & INTERFACES 12.6(2020):7690-7700.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Wang, Gaoxiang]'s Articles
[Wang, Lipeng]'s Articles
[Qiu, Jianhang]'s Articles
Baidu academic
Similar articles in Baidu academic
[Wang, Gaoxiang]'s Articles
[Wang, Lipeng]'s Articles
[Qiu, Jianhang]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Wang, Gaoxiang]'s Articles
[Wang, Lipeng]'s Articles
[Qiu, Jianhang]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.