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

237 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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Yao, H., Ye, L., Hou, J., Jang, B., Han, G., Cui, Y., Su, G. M., Wang, C., Gao, B., Yu, R., Zhang, H., Yi, Y., Woo, H. Y., Ade, H., & Hou, J. (2017). Achieving Highly Efficient Nonfullerene Organic Solar Cells with Improved Intermolecular Interaction and Open-Circuit Voltage. Advanced Materials, 29(21), [1700254]. https://doi.org/10.1002/adma.201700254

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

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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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.",

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