Hole-transporting small molecules based on thiophene cores for high efficiency perovskite solar cells

Hairong Li; Kunwu Fu; Pablo P. Boix; Lydia H. Wong; Anders Hagfeldt; Michael Grätzel; Subodh G. Mhaisalkar; Andrew C. Grimsdale

doi:10.1002/cssc.201402587

Hole-transporting small molecules based on thiophene cores for high efficiency perovskite solar cells

Hairong Li, Kunwu Fu, Pablo P. Boix, Lydia H. Wong, Anders Hagfeldt, Michael Grätzel, Subodh G. Mhaisalkar^*, Andrew C. Grimsdale

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

143 Citations (Scopus)

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-methoxyphe-nylamine)-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.

Original language	English
Pages (from-to)	3420-3425
Number of pages	6
Journal	ChemSusChem
Volume	7
Issue number	12
DOIs	https://doi.org/10.1002/cssc.201402587
Publication status	Published - Dec 1 2014
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2014 Wiley-VCH Verlag GmbH & Co. KGaA.

ASJC Scopus Subject Areas

Environmental Chemistry
General Chemical Engineering
General Materials Science
General Energy

Keywords

Dyes/pigments
Electrochemistry
Heterocycles
Perovskite phases
Solar cells

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title = "Hole-transporting small molecules based on thiophene cores for high efficiency perovskite solar cells",

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-methoxyphe-nylamine)-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.",

keywords = "Dyes/pigments, Electrochemistry, Heterocycles, Perovskite phases, Solar cells",

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AU - Li, Hairong

AU - Fu, Kunwu

AU - Boix, Pablo P.

AU - Wong, Lydia H.

AU - Hagfeldt, Anders

AU - Grätzel, Michael

AU - Mhaisalkar, Subodh G.

AU - Grimsdale, Andrew C.

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N2 - 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-methoxyphe-nylamine)-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.

AB - 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-methoxyphe-nylamine)-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.

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KW - Perovskite phases

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Hole-transporting small molecules based on thiophene cores for high efficiency perovskite solar cells

Abstract

Bibliographical note

ASJC Scopus Subject Areas

Keywords

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