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231225s2018 xx |||||o 00| ||eng c |
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|a 10.1002/adma.201804416
|2 doi
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|a pubmed25n0963.xml
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|a eng
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|a Li, Yongxi
|e verfasserin
|4 aut
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|a Near-Infrared Ternary Tandem Solar Cells
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|c 2018
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Completed 08.11.2018
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|a Date Revised 01.10.2020
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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|a The paucity of near-infrared (NIR) organic materials with high absorption at long wavelengths, combined with large diffusion lengths and charge mobilities, is an impediment to progress in achieving high-efficiency organic tandem solar cells. Here a subcell is employed within a series tandem stack that comprises a solution-processed ternary blend of two NIR-absorbing nonfullerene acceptors and a polymer donor combined with a small-molecular-weight, short-wavelength fullerene-based subcell grown by vacuum thermal evaporation. The ternary cell achieves a power conversion efficiency of 12.6 ± 0.3% with a short-circuit current of 25.5 ± 0.3 mA cm-2 , an open-circuit voltage of 0.69 ± 0.01 V, and a fill factor of 0.71 ± 0.01 under 1 sun, AM 1.5G spectral illumination. The success of this device is a result of the nearly identical offset energies between the lowest unoccupied molecular orbitals (LUMOs) of the donors with the highest occupied molecular orbital (HOMO) of the acceptor, resulting in a high open-circuit voltage. A tandem structure with an antireflection coating combining these subcells demonstrates a power conversion efficiency of 15.4 ± 0.3%
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|a Journal Article
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|a bias illumination
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|a high efficiency
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|a nonfullerene acceptors
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|a polymers
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|a Lin, Jiu-Dong
|e verfasserin
|4 aut
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|a Liu, Xiao
|e verfasserin
|4 aut
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|a Qu, Yue
|e verfasserin
|4 aut
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|a Wu, Fu-Peng
|e verfasserin
|4 aut
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|a Liu, Feng
|e verfasserin
|4 aut
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|a Jiang, Zuo-Quan
|e verfasserin
|4 aut
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| 700 |
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|a Forrest, Stephen R
|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 30(2018), 45 vom: 30. Nov., Seite e1804416
|w (DE-627)NLM098206397
|x 1521-4095
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|g volume:30
|g year:2018
|g number:45
|g day:30
|g month:11
|g pages:e1804416
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|u http://dx.doi.org/10.1002/adma.201804416
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