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231225s2020 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202003296
|2 doi
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|a pubmed24n1047.xml
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|a (DE-627)NLM314295585
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|a (NLM)32856340
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Xie, Lin
|e verfasserin
|4 aut
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|a Realizing Reduced Imperfections via Quantum Dots Interdiffusion in High Efficiency Perovskite Solar Cells
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|c 2020
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Revised 07.10.2020
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2020 Wiley-VCH GmbH.
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|a Realization of reduced ionic (cationic and anionic) defects at the surface and grain boundaries (GBs) of perovskite films is vital to boost the power conversion efficiency of organic-inorganic halide perovskite (OIHP) solar cells. Although numerous strategies have been developed, effective passivation still remains a great challenge due to the complexity and diversity of these defects. Herein, a solid-state interdiffusion process using multi-cation hybrid halide perovskite quantum dots (QDs) is introduced as a strategy to heal the ionic defects at the surface and GBs. It is found that the solid-state interdiffusion process leads to a reduction in OIHP shallow defects. In addition, Cs+ distribution in QDs greatly influences the effectiveness of ionic defect passivation with significant enhancement to all photovoltaic performance characteristics observed on treating the solar cells with Cs0.05 (MA0.17 FA0.83 )0.95 PbBr3 (abbreviated as QDs-Cs5). This enables power conversion efficiency (PCE) exceeding 21% to be achieved with more than 90% of its initial PCE retained on exposure to continuous illumination of more than 550 h
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|a Journal Article
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|a interface passivation
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|a ionic defects
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|a low-dimensional perovskites
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|a perovskite solar cells
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|a quantum dot interdiffusion
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|a Vashishtha, Parth
|e verfasserin
|4 aut
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|a Koh, Teck Ming
|e verfasserin
|4 aut
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|a Harikesh, Padinhare Cholakkal
|e verfasserin
|4 aut
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|a Jamaludin, Nur Fadilah
|e verfasserin
|4 aut
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|a Bruno, Annalisa
|e verfasserin
|4 aut
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|a Hooper, Thomas J N
|e verfasserin
|4 aut
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|a Li, Jia
|e verfasserin
|4 aut
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|a Ng, Yan Fong
|e verfasserin
|4 aut
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|a Mhaisalkar, Subodh G
|e verfasserin
|4 aut
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|a Mathews, Nripan
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 32(2020), 40 vom: 09. Okt., Seite e2003296
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g volume:32
|g year:2020
|g number:40
|g day:09
|g month:10
|g pages:e2003296
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|u http://dx.doi.org/10.1002/adma.202003296
|3 Volltext
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