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231225s2018 xx |||||o 00| ||eng c |
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|a 10.1002/adma.201706975
|2 doi
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|a pubmed24n0942.xml
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|a eng
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|a Meng, Xiangyue
|e verfasserin
|4 aut
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|a Versatility of Carbon Enables All Carbon Based Perovskite Solar Cells to Achieve High Efficiency and High Stability
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|c 2018
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|a Text
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Completed 06.08.2018
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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 © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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|a Carbon-based perovskite solar cells (PVSCs) without hole transport materials are promising for their high stability and low cost, but the electron transporting layer (ETL) of TiO2 is notorious for inflicting hysteresis and instability. In view of its electron accepting ability, C60 is used to replace TiO2 for the ETL, forming a so-called all carbon based PVSC. With a device structure of fluorine-doped tin oxide (FTO)/C60 /methylammonium lead iodide (MAPbI3 )/carbon, a power conversion efficiency (PCE) is attained up to 15.38% without hysteresis, much higher than that of the TiO2 ones (12.06% with obvious hysteresis). The C60 ETL is found to effectively improve electron extraction, suppress charge recombination, and reduce the sub-bandgap states at the interface with MAPbI3 . Moreover, the all carbon based PVSCs are shown to resist moisture and ion migration, leading to a much higher operational stability under ambient, humid, and light-soaking conditions. To make it an even more genuine all carbon based PVSC, it is further attempted to use graphene as the transparent conductive electrode, reaping a PCE of 13.93%. The high performance of all carbon based PVSCs stems from the bonding flexibility and electronic versatility of carbon, promising commercial developments on account of their favorable balance of cost, efficiency, and stability
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|a Journal Article
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|a carbon
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|a fullerenes
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|a high stability
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|a perovskite solar cells
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|a Zhou, Junshuai
|e verfasserin
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|a Hou, Jie
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|a Tao, Xia
|e verfasserin
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|a Cheung, Sin Hang
|e verfasserin
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|a So, Shu Kong
|e verfasserin
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|a Yang, Shihe
|e verfasserin
|4 aut
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
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|g 30(2018), 21 vom: 02. Mai, Seite e1706975
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