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Title: Hole-transporting small molecules based on thiophene cores for high efficiency perovskite solar cells
Authors: Mhaisalkar, Subodh Gautam
Li, Hairong
Fu, Kunwu
Boix, Pablo P.
Wong, Lydia H.
Hagfeldt, Anders
Grätzel, Michael
Grimsdale, Andrew C.
Keywords: DRNTU::Science::Chemistry::Physical chemistry::Electrochemistry
Issue Date: 2014
Source: Li, H., Fu, K., Boix, P. P., Wong, L. H., Hagfeldt, A., Grätzel, M., et al. (2014). Hole-transporting small molecules based on thiophene cores for high efficiency perovskite solar cells. ChemSusChem, 7(12), 3420-3425.
Series/Report no.: ChemSusChem
Abstract: Two new electron-rich molecules, 2,3,4,5-tetra[4,4′-bis(methoxyphenyl)aminophen-4“-yl]-thiophene (H111) and 4,4′,5,5′-tetra[4,4′-bis(methoxyphenyl)aminophen-4”-yl]-2,2′-bithiophene (H112), which contain thiophene cores with arylamine side groups, are reported. When used as the hole-transporting material (HTM) in perovskite-based solar cell devices, power conversion efficiencies of up to 15.4 % under AM 1.5G solar simulation were obtained. This is the highest efficiency achieved with HTMs not composed of 2,2′,7,7′-tetrakis(N,N′-di-p-methoxyphenylamine)-9,9′-spirobifluorene (spiro-OMeTAD) and its isomers. Both HTMs, especially H111, have great potential to replace expensive spiro-OMeTAD given their much simpler and less expensive syntheses.
ISSN: 1864-5631
DOI: 10.1002/cssc.201402587
Rights: © 2014 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:ERI@N Journal Articles

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