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

文献类型：期刊论文

作者He, Dingchao1,4; Xu, Xiaoxiao1,4; Liang, Zheng1,4; Niu, Yuanjuan1,4; Sun, Yuan4; Gavin, Tulloch2,3; Falaras, Polycarpos3; Hu, Linhua4
刊名JOURNAL OF MATERIALS CHEMISTRY C
出版日期2021-06-11
ISSN号2050-7526
DOI10.1039/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.
WOS关键词QUANTUM YIELDS ; PERFORMANCE ; STABILITY ; EFFICIENT ; ADDITIVES ; LAYER
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研究方向Materials Science ; Physics
语种英语
WOS记录号WOS:000670652100001
出版者ROYAL SOC CHEMISTRY
资助机构National Key R&D Program of China ; National Natural Science Foundation of China ; Anhui Provincial Natural Science Foundation ; European Union
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.Greatcell Energy, 280 Byrnes Rd, Wagga Wagga, NSW 2650, Australia
3.Natl Ctr Sci Res Demokritos, Inst Nanosci & Nanotechnol INN, Athens 15310, Greece
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).

入库方式： OAI收割

来源：合肥物质科学研究院

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