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Direct Observation ...
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Xiong, ShaobingEast China Normal Univ, Peoples R China
(författare)
Direct Observation on p- to n-Type Transformation of Perovskite Surface Region during Defect Passivation Driving High Photovoltaic Efficiency
- Artikel/kapitelEngelska2021
Förlag, utgivningsår, omfång ...
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CELL PRESS,2021
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printrdacarrier
Nummerbeteckningar
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LIBRIS-ID:oai:DiVA.org:liu-174978
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https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-174978URI
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https://doi.org/10.1016/j.joule.2020.12.009DOI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:ref swepub-contenttype
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Ämneskategori:art swepub-publicationtype
Anmärkningar
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Funding Agencies|National Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [21875067, 51811530011, 11604099]; Fundamental Research Funds for the Central Universities, Shanghai Rising-Star [19QA1403100]; East China Normal University (ECNU) Multifunctional Platform for Innovation; Swedish Government Strategic Research Area in Materials Science on Functional Materials at Linko ping University (Faculty Grant SFO Mat LiU) [200900971]; National Key Research and Development Program of China [2017YFA0206600]; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [51773045, 21772030, 51922032]
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Perovskite solar cells (PSCs) suffer from significant nonradiative recombination, limiting their power conversion efficiencies. Here, for the first time, we directly observe a complete transformation of perovskite MAPbI(3) surface region energetics from p- to n-type during defect passivation caused by natural additive capsaicin, attributed to the spontaneous formation of a p-n homojunction in perovskite active layer. We demonstrate that the p-n homojunction locates at similar to 100 nm below perovskite surface. The energetics transformation and defect passivation promote charge transport in bulk perovskite layer and at perovskite/PCBM interface, suppressing both defect-assisted recombination and interface carrier recombination. As a result, an efficiency of 21.88% and a fill factor of 83.81% with excellent device stability are achieved, both values are the highest records for polycrystalline MAPbI(3) based p-i-n PSCs reported to date. The proposed new concept of synergetic defect passivation and energetic modification via additive provides a huge potential for further improvement of PSC performance.
Ämnesord och genrebeteckningar
Biuppslag (personer, institutioner, konferenser, titlar ...)
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Hou, ZhangyuEast China Normal Univ, Peoples R China
(författare)
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Zou, ShijieSoochow Univ, Peoples R China
(författare)
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Lu, XiaoshuangEast China Normal Univ, Peoples R China
(författare)
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Yang, JianmingEast China Normal Univ, Peoples R China
(författare)
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Hao, TianyuShanghai Jiao Tong Univ, Peoples R China
(författare)
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Zhou, ZihaoEast China Normal Univ, Peoples R China
(författare)
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Xu, JianhuaEast China Normal Univ, Peoples R China
(författare)
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Zeng, YihanEast China Normal Univ, Peoples R China
(författare)
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Xiao, WeiEast China Normal Univ, Peoples R China
(författare)
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Dong, WeiEast China Normal Univ, Peoples R China
(författare)
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Li, DanqinEast China Normal Univ, Peoples R China
(författare)
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Wang, XiangEast China Normal Univ, Peoples R China
(författare)
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Hu, ZhigaoEast China Normal Univ, Peoples R China
(författare)
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Sun, LinEast China Normal Univ, Peoples R China
(författare)
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Wu, YuningEast China Normal Univ, Peoples R China
(författare)
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Liu, XianjieLinköpings universitet,Laboratoriet för organisk elektronik,Tekniska fakulteten(Swepub:liu)xiali21
(författare)
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Ding, LimingNatl Ctr Nanosci & Technol, Peoples R China
(författare)
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Sun, ZhenrongEast China Normal Univ, Peoples R China
(författare)
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Fahlman, MatsLinköpings universitet,Laboratoriet för organisk elektronik,Tekniska fakulteten(Swepub:liu)matfa21
(författare)
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Bao, QinyeEast China Normal Univ, Peoples R China; East China Normal Univ, Peoples R China; Shanxi Univ, Peoples R China
(författare)
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East China Normal Univ, Peoples R ChinaSoochow Univ, Peoples R China
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:Joule: CELL PRESS5:2, s. 467-4802542-4351
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- Av författaren/redakt...
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Xiong, Shaobing
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Hou, Zhangyu
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Zou, Shijie
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Lu, Xiaoshuang
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Yang, Jianming
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Hao, Tianyu
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visa fler...
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Zhou, Zihao
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Xu, Jianhua
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Zeng, Yihan
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Xiao, Wei
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Dong, Wei
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Li, Danqin
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Wang, Xiang
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Hu, Zhigao
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Sun, Lin
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Wu, Yuning
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Liu, Xianjie
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Ding, Liming
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Sun, Zhenrong
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Fahlman, Mats
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Bao, Qinye
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