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231225s2020 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202002066
|2 doi
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|a pubmed25n1036.xml
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|a (NLM)32529680
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|a eng
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|a Wang, Yifan
|e verfasserin
|4 aut
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|a High-Efficiency Perovskite Quantum Dot Hybrid Nonfullerene Organic Solar Cells with Near-Zero Driving Force
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|c 2020
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Revised 30.09.2020
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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 Verlag GmbH & Co. KGaA, Weinheim.
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|a To take advantages of the intense absorption and fluorescence, high charge mobility, and high dielectric constant of CsPbI3 perovskite quantum dots (PQDs), PQD hybrid nonfullerene organic solar cells (OSCs) are fabricated. Addition of PQDs leads to simultaneous enhancement of open-circuit voltage (VOC ), short-circuit current density (JSC ), and fill factor (FF); power conversion efficiencies are boosted from 11.6% to 13.2% for PTB7-Th:FOIC blend and from 15.4% to 16.6% for PM6:Y6 blend. Incorporation of PQDs dramatically increases the energy of the charge transfer state, resulting in near-zero driving force and improved VOC . Interestingly, at near-zero driving force, the PQD hybrid OSCs show more efficient charge generation than the control device without PQDs, contributing to enhanced JSC , due to the formation of cascade band structure and increased molecular ordering. The strong fluorescence of the PQDs enhances the external quantum efficiency of the electroluminescence of the active layer, which can reduce nonradiative recombination voltage loss. The high dielectric constant of the PQDs screens the Coulombic interactions and reduces charge recombination, which is beneficial for increased FF. This work may open up wide applicability of perovskite quantum dots and an avenue toward high-performance nonfullerene solar cells
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|a Journal Article
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|a CsPbI3
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|a hybrid materials
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|a nonfullerene acceptors
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|a organic solar cells
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|a perovskite quantum dots
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|a Jia, Boyu
|e verfasserin
|4 aut
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1 |
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|a Wang, Jing
|e verfasserin
|4 aut
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|a Xue, Peiyao
|e verfasserin
|4 aut
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1 |
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|a Xiao, Yiqun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Li, Tengfei
|e verfasserin
|4 aut
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| 700 |
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|a Wang, Jiayu
|e verfasserin
|4 aut
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| 700 |
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|a Lu, Heng
|e verfasserin
|4 aut
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|a Tang, Zheng
|e verfasserin
|4 aut
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|a Lu, Xinhui
|e verfasserin
|4 aut
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|a Huang, Fei
|e verfasserin
|4 aut
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|a Zhan, Xiaowei
|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), 29 vom: 10. Juli, Seite e2002066
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnas
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| 773 |
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|g volume:32
|g year:2020
|g number:29
|g day:10
|g month:07
|g pages:e2002066
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|u http://dx.doi.org/10.1002/adma.202002066
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