Defect passivation and humidity protection for perovskite solar cells enabled by 1-dodecanethiol

doi:10.1039/d1tc01720a

	Defect passivation and humidity protection for perovskite solar cells enabled by 1-dodecanethiol
	He, Dingchao 1,4; Xu, Xiaoxiao 1,4; Liang, Zheng 1,4; Niu, Yuanjuan 1,4; Sun, Yuan 4; Gavin, Tulloch 2,3; Falaras, Polycarpos 2; Hu, Linhua 4
刊名	JOURNAL OF MATERIALS CHEMISTRY C
	2021-06-11
ISSN号	2050-7526
DOI	10.1039/d1tc01720a
通讯作者	Falaras, Polycarpos(p.falaras@inn.demokritos.gr) ; Hu, Linhua(lhhu@rntek.cas.cn)
英文摘要	Multiple defects are likely to be produced during perovskite film preparation and exposure to a high humidity environment, which would negatively affect charge transport mechanisms and finally degrade the performance of perovskite solar cells (PSCs). In this work, we introduced a surface hydrophobic modifier, 1-dodecanethiol (DDT), to repair defects and enhance the moisture resistance of perovskite films. Through a series of tests, we found that defect repair by the thiol group in DDT can reduce trap density, inhibit non-radiative recombination and improve charge carrier transportation and extraction performance. In addition, benefiting from the excellent hydrophobicity of the dodecyl alkyl chain in DDT, both device efficiency and stability are significantly improved. Consequently, the device post-treated with DDT delivered a champion power conversion efficiency (PCE) of 20.89%, accompanied by outstanding long-range stability that exceeded 90% of its initial PCE after 1000 hours at a relatively high humidity of 80 +/- 5% and without any encapsulation.
资助项目	National Key R&D Program of China[2017YFE0133800] ; National Natural Science Foundation of China[51961165106] ; Anhui Provincial Natural Science Foundation[1908085QB52] ; European Union[764787]
WOS关键词	QUANTUM YIELDS ; PERFORMANCE ; STABILITY ; EFFICIENT ; ADDITIVES ; LAYER
WOS研究方向	Materials Science ; Physics
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000670652100001
资助机构	National Key R&D Program of China ; National Natural Science Foundation of China ; Anhui Provincial Natural Science Foundation ; European Union
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/123433]
专题	中国科学院合肥物质科学研究院
通讯作者	Falaras, Polycarpos; Hu, Linhua
作者单位	1.Univ Sci & Technol China, 96 Jinzhai Rd, Hefei 230026, Peoples R China 2.Natl Ctr Sci Res Demokritos, Inst Nanosci & Nanotechnol INN, Athens 15310, Greece 3.Greatcell Energy, 280 Byrnes Rd, Wagga Wagga, NSW 2650, Australia 4.Chinese Acad Sci, Inst Solid State Phys, Key Lab Photovolta & Energy Conservat Mat, HFIPS, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	He, Dingchao,Xu, Xiaoxiao,Liang, Zheng,et al. Defect passivation and humidity protection for perovskite solar cells enabled by 1-dodecanethiol[J]. JOURNAL OF MATERIALS CHEMISTRY C,2021.
APA	He, Dingchao.,Xu, Xiaoxiao.,Liang, Zheng.,Niu, Yuanjuan.,Sun, Yuan.,...&Hu, Linhua.(2021).Defect passivation and humidity protection for perovskite solar cells enabled by 1-dodecanethiol.JOURNAL OF MATERIALS CHEMISTRY C.
MLA	He, Dingchao,et al."Defect passivation and humidity protection for perovskite solar cells enabled by 1-dodecanethiol".JOURNAL OF MATERIALS CHEMISTRY C (2021).