A multifunctional additive of scandium trifluoromethanesulfonate to achieve efficient inverted perovskite solar cells with a high fill factor of 83.80%

doi:10.1039/d0ta07567a

	A multifunctional additive of scandium trifluoromethanesulfonate to achieve efficient inverted perovskite solar cells with a high fill factor of 83.80%
	Li, Shufang 3; Zhu, Linna 3; Kan, Zhipeng 1; Hua, Yong 2; Wu, Fei 3
刊名	JOURNAL OF MATERIALS CHEMISTRY A
	2020-10-07
卷号	8 期号:37 页码:19555-19560
ISSN号	2050-7488
DOI	10.1039/d0ta07567a
通讯作者	Zhu, Linna(lnzhu@swu.edu.cn) ; Hua, Yong() ; Wu, Fei(feiwu610@swu.edu.cn)
英文摘要	High-quality perovskite films are critical to realize efficient photovoltaic performances of perovskite solar cells (PSCs). An unprocessed perovskite film contains a high density of defects, which results in low film quality. In order to reduce the trap density and passivate non-radiative recombination centers of perovskite films, scandium trifluoromethanesulfonate (Sc(OTF)(3)) is introduced into the perovskite precursor solution as a multifunctional additive. The sulfonic group could coordinate with lead ions, thus reducing the perovskite crystallization process, and a high quality perovskite film with large grain size, high crystallinity and few defects is obtained. Meanwhile, the doping of the rare earth ion Sc(3+)in the perovskite precursor solution could lead to the interaction of Sc(3+)with the perovskite, thereby improving film morphology and prolonging the charge carrier lifetime. In addition, the strong hydrogen bonding interaction between Sc(OTF)(3)and MA(+)could immobilize methylamine ions (MA(+)), contributing to the improved stability of the perovskite film. As a result, inverted PSCs with Sc(OTF)(3)at a low doping amount of 0.1 mg ml(-1)show a remarkable efficiency of 20.63% along with an open circuit voltage (V-oc) of 1134 mV, a short circuit current density (J(sc)) of 21.71 mA cm(-2), and a high fill factor (FF) of 83.80%. So far, the FF of this system represents one of the highest results for inverted PSCs.
资助项目	National Natural Science Foundation of China[51703183] ; Fundamental Research Funds for the Central Universities[XDJK2019B065] ; Fundamental Research Funds for the Central Universities[XDJK2020B002] ; Basic research and Frontier Exploration of Chongqing Municipal Science and Technology Commission[cstc2018jcyjAX0568] ; Key Project of Natural Science Foundation of Yunnan[KC10110419] ; Fund for Excellent Young Scholars of Yunnan
WOS研究方向	Chemistry ; Energy & Fuels ; Materials Science
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000573889000035
内容类型	期刊论文
源URL	[http://119.78.100.138/handle/2HOD01W0/11847]
专题	中国科学院重庆绿色智能技术研究院
通讯作者	Zhu, Linna; Hua, Yong; Wu, Fei
作者单位	1.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Organ Semicond Res Ctr, Chongqing, Peoples R China 2.Yunnan Univ, Sch Mat & Energy, Yunnan Key Lab Micro Nano Mat & Technol, Kunming 650091, Yunnan, Peoples R China 3.Southwest Univ, Sch Mat & Energy, Chongqing Key Lab Adv Mat & Technol Clean Energy, Chongqing 400715, Peoples R China
推荐引用方式 GB/T 7714	Li, Shufang,Zhu, Linna,Kan, Zhipeng,et al. A multifunctional additive of scandium trifluoromethanesulfonate to achieve efficient inverted perovskite solar cells with a high fill factor of 83.80%[J]. JOURNAL OF MATERIALS CHEMISTRY A,2020,8(37):19555-19560.
APA	Li, Shufang,Zhu, Linna,Kan, Zhipeng,Hua, Yong,&Wu, Fei.(2020).A multifunctional additive of scandium trifluoromethanesulfonate to achieve efficient inverted perovskite solar cells with a high fill factor of 83.80%.JOURNAL OF MATERIALS CHEMISTRY A,8(37),19555-19560.
MLA	Li, Shufang,et al."A multifunctional additive of scandium trifluoromethanesulfonate to achieve efficient inverted perovskite solar cells with a high fill factor of 83.80%".JOURNAL OF MATERIALS CHEMISTRY A 8.37(2020):19555-19560.