Spiro-OMeTAD:Sb2S3 Hole Transport Layer with Triple Functions of Overcoming Lithium Salt Aggregation, Long-Term High Conductivity, and Defect Passivation for Perovskite Solar Cells

doi:10.1002/solr.202100622

	Spiro-OMeTAD:Sb2S3 Hole Transport Layer with Triple Functions of Overcoming Lithium Salt Aggregation, Long-Term High Conductivity, and Defect Passivation for Perovskite Solar Cells
	Du, Qing 2; Shen, Zhitao 2; Chen, Chong 2; Li, Fumin 2; Jin, Mengqi 2; Li, Huilin 2; Dong, Chao 1; Zheng, Jihong 2; Ji, Mingxing 2; Wang, Mingtai 1
刊名	SOLAR RRL
	2021-09-15
关键词	conductivity Li-TFSI aggregation long-term stability perovskite solar cells Sb2S3
ISSN号	2367-198X
DOI	10.1002/solr.202100622
通讯作者	Chen, Chong(chongchen@henu.edu.cn) ; Wang, Mingtai(mtwang@ipp.ac.cn)
英文摘要	The development of a hole transport layer (HTL) with persistent high conductivity, good moisture/oxygen barrier ability, and suitable passivation ability of perovskite defects is very important for achieving high power conversion efficiency (PCE) and long-term stability of perovskite solar cells (PSCs). However, the state-of-the art HTL, lithium bis(trifluoromethanesulfonyl)-imide (Li-TFSI)-doped 2,2',7,7'-tetrakis-(N,N-di-p-methoxyphenylamine)-9,9'-spirobifluorene (spiro-OMeTAD), does not have these abilities. Herein, the incorporation of antimony sulfide (Sb2S3) nanoparticles as a multifunctional additive into spiro-OMeTAD is demonstrated. The Sb2S3 effectively improve the compactness of composite spiro-OMeTAD:Sb2S3 HTL by inhibiting the Li-TFSI aggregation and effectively prevent the infiltration of moisture and oxygen into the perovskite layer, resulting in its high chemical stability. More importantly, Sb2S3 not only improves the conductivity and hole mobility of the spiro-OMeTAD:Sb2S3 through the oxidation of spiro-OMeTAD by Sb2S3, but also makes the high conductivity more durable and stable in the atmospheric environment. In addition, Sb2S3 also effectively passivates the perovskite defects and accelerates the charge transfer from perovskite layer to HTL. As a consequence, the optimized PSCs based on spiro-OMeTAD:Sb2S3 HTL exhibit a much higher PCE (22.13%) than that (19.29%) of the PSCs without Sb2S3 and show a greatly improved stability.
资助项目	National Science Foundation for Young Scientists of China[61704048] ; National Natural Science Foundation of China[11474286] ; National Natural Science Foundation of China[11974353] ; Program for Science &Technology Innovation Talents in Universities of Henan Province[19HASTIT049] ; Seed Fund of Young Scientific Research Talents of Henan University[CX0000A40540] ; Natural Science Foundation of Henan Province[162300410021] ; Key Research Project of Henan Provincial Higher Education[19A140007] ; Collaborative Innovation Program of Hefei Science Center, CAS[2020HSC-CIP004]
WOS关键词	HIGH-PERFORMANCE ; SPIRO-OMETAD ; LOW-COST ; EFFICIENT ; DOPANT ; IODIDE
WOS研究方向	Energy & Fuels ; Materials Science
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000696101000001
资助机构	National Science Foundation for Young Scientists of China ; National Natural Science Foundation of China ; Program for Science &Technology Innovation Talents in Universities of Henan Province ; Seed Fund of Young Scientific Research Talents of Henan University ; Natural Science Foundation of Henan Province ; Key Research Project of Henan Provincial Higher Education ; Collaborative Innovation Program of Hefei Science Center, CAS
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/125289]
专题	中国科学院合肥物质科学研究院
通讯作者	Chen, Chong; Wang, Mingtai
作者单位	1.Chinese Acad Sci, Inst Solid State Phys, HFIPS, Hefei 230031, Peoples R China 2.Henan Univ, Henan Key Lab Photovolta Mat, Kaifeng 475004, Henan, Peoples R China
推荐引用方式 GB/T 7714	Du, Qing,Shen, Zhitao,Chen, Chong,et al. Spiro-OMeTAD:Sb2S3 Hole Transport Layer with Triple Functions of Overcoming Lithium Salt Aggregation, Long-Term High Conductivity, and Defect Passivation for Perovskite Solar Cells[J]. SOLAR RRL,2021.
APA	Du, Qing.,Shen, Zhitao.,Chen, Chong.,Li, Fumin.,Jin, Mengqi.,...&Wang, Mingtai.(2021).Spiro-OMeTAD:Sb2S3 Hole Transport Layer with Triple Functions of Overcoming Lithium Salt Aggregation, Long-Term High Conductivity, and Defect Passivation for Perovskite Solar Cells.SOLAR RRL.
MLA	Du, Qing,et al."Spiro-OMeTAD:Sb2S3 Hole Transport Layer with Triple Functions of Overcoming Lithium Salt Aggregation, Long-Term High Conductivity, and Defect Passivation for Perovskite Solar Cells".SOLAR RRL (2021).