Achieving Highly Efficient Nonfullerene Organic Solar Cells with Improved Intermolecular Interaction and Open-Circuit Voltage

Huifeng Yao; Long Ye; Junxian Hou; Bomee Jang; Guangchao Han; Yong Cui; Gregory M. Su; Cheng Wang; Bowei Gao; Runnan Yu; Hao Zhang; Yuanping Yi; Han Young Woo; Harald Ade; Jianhui Hou

doi:10.1002/adma.201700254

Achieving Highly Efficient Nonfullerene Organic Solar Cells with Improved Intermolecular Interaction and Open-Circuit Voltage

Huifeng Yao, Long Ye, Junxian Hou, Bomee Jang, Guangchao Han, Yong Cui, Gregory M. Su, Cheng Wang, Bowei Gao, Runnan Yu, Hao Zhang, Yuanping Yi, Han Young Woo, Harald Ade, Jianhui Hou

Department of Chemistry

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

263 Citations (Scopus)

Abstract

A new acceptor–donor–acceptor-structured nonfullerene acceptor ITCC (3,9-bis(4-(1,1-dicyanomethylene)-3-methylene-2-oxo-cyclopenta[b]thiophen)-5,5,11,11-tetrakis(4-hexylphenyl)-dithieno[2,3-d′:2,3-d′]-s-indaceno[1,2-b:5,6-b′]-dithiophene) is designed and synthesized via simple end-group modification. ITCC shows improved electron-transport properties and a high-lying lowest unoccupied molecular orbital level. A power conversion efficiency of 11.4% with an impressive V _OC of over 1 V is recorded in photovoltaic devices, suggesting that ITCC has great potential for applications in tandem organic solar cells.

Original language	English
Article number	1700254
Journal	Advanced Materials
Volume	29
Issue number	21
DOIs	https://doi.org/10.1002/adma.201700254
Publication status	Published - 2017 Jun 6

Keywords

end-group modification
intermolecular π–π stacking
molecular energy levels
nonfullerene acceptors
organic solar cells

ASJC Scopus subject areas

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

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Achieving Highly Efficient Nonfullerene Organic Solar Cells with Improved Intermolecular Interaction and Open-Circuit Voltage. / Yao, Huifeng; Ye, Long; Hou, Junxian; Jang, Bomee; Han, Guangchao; Cui, Yong; Su, Gregory M.; Wang, Cheng; Gao, Bowei; Yu, Runnan; Zhang, Hao; Yi, Yuanping; Woo, Han Young; Ade, Harald; Hou, Jianhui.

In: Advanced Materials, Vol. 29, No. 21, 1700254, 06.06.2017.

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

Yao, Huifeng ; Ye, Long ; Hou, Junxian ; Jang, Bomee ; Han, Guangchao ; Cui, Yong ; Su, Gregory M. ; Wang, Cheng ; Gao, Bowei ; Yu, Runnan ; Zhang, Hao ; Yi, Yuanping ; Woo, Han Young ; Ade, Harald ; Hou, Jianhui. / Achieving Highly Efficient Nonfullerene Organic Solar Cells with Improved Intermolecular Interaction and Open-Circuit Voltage. In: Advanced Materials. 2017 ; Vol. 29, No. 21.

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title = "Achieving Highly Efficient Nonfullerene Organic Solar Cells with Improved Intermolecular Interaction and Open-Circuit Voltage",

abstract = "A new acceptor–donor–acceptor-structured nonfullerene acceptor ITCC (3,9-bis(4-(1,1-dicyanomethylene)-3-methylene-2-oxo-cyclopenta[b]thiophen)-5,5,11,11-tetrakis(4-hexylphenyl)-dithieno[2,3-d′:2,3-d′]-s-indaceno[1,2-b:5,6-b′]-dithiophene) is designed and synthesized via simple end-group modification. ITCC shows improved electron-transport properties and a high-lying lowest unoccupied molecular orbital level. A power conversion efficiency of 11.4% with an impressive V OC of over 1 V is recorded in photovoltaic devices, suggesting that ITCC has great potential for applications in tandem organic solar cells.",

keywords = "end-group modification, intermolecular π–π stacking, molecular energy levels, nonfullerene acceptors, organic solar cells",

author = "Huifeng Yao and Long Ye and Junxian Hou and Bomee Jang and Guangchao Han and Yong Cui and Su, {Gregory M.} and Cheng Wang and Bowei Gao and Runnan Yu and Hao Zhang and Yuanping Yi and Woo, {Han Young} and Harald Ade and Jianhui Hou",

note = "Funding Information: Ji.H. acknowledges the financial support from the Ministry of Science and Technology of China (2014CB643501), NSFC (21325419, 91333204, 51373181), the Chinese Academy of Science (XDB12030200, KJZD-EW-J01), the CAS-Croucher Funding Scheme for Joint Labs (CAS14601). NEXAFS and R-SoXS data analyses by L.Y. and H.A. were supported by the ONR grant N00141512322. X-ray data were acquired at beamlines 11.0.1.2, and 5.3.2.2 at the Advanced Light Source, which was supported by the Director, Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. A. L. D. Kilcoyne, Y. Yu, and A. Young of the ALS (LBNL) provided instrument maintenance. H.Y.W. acknowledges the financial support from National Research Foundation (NRF) of Korea (2012M3A6A7055540). Y.Y. acknowledges the financial support from the Chinese Academy of Science (XDB12020200).",

year = "2017",

month = jun,

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doi = "10.1002/adma.201700254",

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volume = "29",

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T1 - Achieving Highly Efficient Nonfullerene Organic Solar Cells with Improved Intermolecular Interaction and Open-Circuit Voltage

AU - Yao, Huifeng

AU - Ye, Long

AU - Hou, Junxian

AU - Jang, Bomee

AU - Han, Guangchao

AU - Cui, Yong

AU - Su, Gregory M.

AU - Wang, Cheng

AU - Gao, Bowei

AU - Yu, Runnan

AU - Zhang, Hao

AU - Yi, Yuanping

AU - Woo, Han Young

AU - Ade, Harald

AU - Hou, Jianhui

N1 - Funding Information: Ji.H. acknowledges the financial support from the Ministry of Science and Technology of China (2014CB643501), NSFC (21325419, 91333204, 51373181), the Chinese Academy of Science (XDB12030200, KJZD-EW-J01), the CAS-Croucher Funding Scheme for Joint Labs (CAS14601). NEXAFS and R-SoXS data analyses by L.Y. and H.A. were supported by the ONR grant N00141512322. X-ray data were acquired at beamlines 11.0.1.2, and 5.3.2.2 at the Advanced Light Source, which was supported by the Director, Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. A. L. D. Kilcoyne, Y. Yu, and A. Young of the ALS (LBNL) provided instrument maintenance. H.Y.W. acknowledges the financial support from National Research Foundation (NRF) of Korea (2012M3A6A7055540). Y.Y. acknowledges the financial support from the Chinese Academy of Science (XDB12020200).

PY - 2017/6/6

Y1 - 2017/6/6

N2 - A new acceptor–donor–acceptor-structured nonfullerene acceptor ITCC (3,9-bis(4-(1,1-dicyanomethylene)-3-methylene-2-oxo-cyclopenta[b]thiophen)-5,5,11,11-tetrakis(4-hexylphenyl)-dithieno[2,3-d′:2,3-d′]-s-indaceno[1,2-b:5,6-b′]-dithiophene) is designed and synthesized via simple end-group modification. ITCC shows improved electron-transport properties and a high-lying lowest unoccupied molecular orbital level. A power conversion efficiency of 11.4% with an impressive V OC of over 1 V is recorded in photovoltaic devices, suggesting that ITCC has great potential for applications in tandem organic solar cells.

AB - A new acceptor–donor–acceptor-structured nonfullerene acceptor ITCC (3,9-bis(4-(1,1-dicyanomethylene)-3-methylene-2-oxo-cyclopenta[b]thiophen)-5,5,11,11-tetrakis(4-hexylphenyl)-dithieno[2,3-d′:2,3-d′]-s-indaceno[1,2-b:5,6-b′]-dithiophene) is designed and synthesized via simple end-group modification. ITCC shows improved electron-transport properties and a high-lying lowest unoccupied molecular orbital level. A power conversion efficiency of 11.4% with an impressive V OC of over 1 V is recorded in photovoltaic devices, suggesting that ITCC has great potential for applications in tandem organic solar cells.

KW - end-group modification

KW - intermolecular π–π stacking

KW - molecular energy levels

KW - nonfullerene acceptors

KW - organic solar cells

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