IMR OpenIR
Fabrication of efficient formamidinium perovskite solar cells under ambient air via intermediate-modulated crystallization
Wang, Gaoxiang; Wang, Lipeng; Qiu, Jianhang; Yan, Zheng; Tai, Kaiping; Yu, Wei; Jiang, Xin
2019-07-15
Source PublicationSOLAR ENERGY
ISSN0038-092X
Volume187Pages:147-155
AbstractDeveloping simple methods to synthesize perovskite layers under ambient air can facilitate the industrial production of perovskite solar cells (PSCs). While limited progress has been made for the ambient-air fabrication of formamidinium lead triiodide perovskite (alpha-FAPbI(3)) layers due to the coexisting non-perovskite polymorph (delta-FAPbI(3)). Here, a facile N-methyl pyrrolidone (NMP) additive-based method is proposed to produce FA-perovskite (FAPbI(3)) layers in ambient air and smooth, highly-crystallized and delta-phase free perovskite films are produced under humidity of similar to 40%. The resultant PSC delivers a power conversion efficiency (PCE) of 17.29%, similar to 20% enhancement from that of PSC produced from traditional dimethyl sulfoxide (DSMO) additive. It is found that a distinct FAI center dot PbI2 center dot NMP intermediate phase forms during the film growth, providing an alternative crystallization process different to that of traditional delta-FAPbI(3) intermediate route. The fine nucleation of FAI center dot PbI2 center dot NMP intermediate contributes a smooth and dense morphology to the final film. The rapid detachment of NMP molecule from the intermediate enables a direct formation of alpha-FAPbI(3) film, averting the incomplete delta- to alpha- phase conversion under ambient air. Due to the high film quality, a PCE of 13.55% is still remained after 30-day storage for unencapsulated device, demonstrating the reliability of our method for FA-perovsklte ambient-air fabrication.
KeywordPerovskite solar cell Formamidinium Ambient-air fabrication Intermediate Crystallization
Indexed BySCI
Language英语
WOS IDWOS:000474327400014
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/80906
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Wang, Gaoxiang,Wang, Lipeng,Qiu, Jianhang,et al. Fabrication of efficient formamidinium perovskite solar cells under ambient air via intermediate-modulated crystallization[J]. SOLAR ENERGY,2019,187:147-155.
APA Wang, Gaoxiang.,Wang, Lipeng.,Qiu, Jianhang.,Yan, Zheng.,Tai, Kaiping.,...&Jiang, Xin.(2019).Fabrication of efficient formamidinium perovskite solar cells under ambient air via intermediate-modulated crystallization.SOLAR ENERGY,187,147-155.
MLA Wang, Gaoxiang,et al."Fabrication of efficient formamidinium perovskite solar cells under ambient air via intermediate-modulated crystallization".SOLAR ENERGY 187(2019):147-155.
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.