Fabrication of efficient formamidinium perovskite solar cells under ambient air via intermediate-modulated crystallization

doi:10.1016/j.solener.2019.05.033

CORC > 金属研究所 > 中国科学院金属研究所

	Fabrication of efficient formamidinium perovskite solar cells under ambient air via intermediate-modulated crystallization
	Wang, Gaoxiang 1,2; Wang, Lipeng 1,2; Qiu, Jianhang 1; Yan, Zheng 3; Tai, Kaiping 1; Yu, Wei 4; Jiang, Xin 1
刊名	SOLAR ENERGY
	2019-07-15
卷号	187 页码:147-155
关键词	Perovskite solar cell Formamidinium Ambient-air fabrication Intermediate Crystallization
ISSN号	0038-092X
DOI	10.1016/j.solener.2019.05.033
通讯作者	Qiu, Jianhang(jhqiu@imr.ac.cn) ; Yu, Wei(yuwei@hbu.edu.cn) ; Jiang, Xin(xjiang@imr.ac.cn)
英文摘要	Developing 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.
资助项目	National Nature Science Foundation of China[51402308] ; Young Talent Program of Shenyang National Laboratory for Materials Science[2017FP29]
WOS研究方向	Energy & Fuels
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000474327400014
资助机构	National Nature Science Foundation of China ; Young Talent Program of Shenyang National Laboratory for Materials Science
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/134254]
专题	金属研究所_中国科学院金属研究所
通讯作者	Qiu, Jianhang; Yu, Wei; Jiang, Xin
作者单位	1.Chinese Acad Sci, IMR, Shenyang Natl Lab Mat Sci SYNL, Shenyang 110016, Liaoning, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China 3.Shenyang Aerosp Univ, Coll Energy & Environm, Shenyang 110136, Liaoning, Peoples R China 4.Hebei Univ, Coll Phys Sci & Technol, Natl Local Joint Engn Lab New Energy Photoelect D, Hebei Key Lab Opt Elect Informat & Mat, Baoding 071002, Peoples R China
推荐引用方式 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.