Bithiophene imide and benzodithiophene copolymers for efficient inverted polymer solar cells

Nanjia Zhou; Xugang Guo; Rocio Ponce Ortiz; Shiqiang Li; Shiming Zhang; Robert P.H. Chang; Antonio Facchetti; Tobin J. Marks

doi:10.1002/adma.201103948

Bithiophene imide and benzodithiophene copolymers for efficient inverted polymer solar cells

Nanjia Zhou, Xugang Guo, Rocio Ponce Ortiz, Shiqiang Li, Shiming Zhang, Robert P.H. Chang, Antonio Facchetti, Tobin J. Marks

Northwestern University

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

169 Scopus citations

Abstract

Bithiophene imide (BTI) and benzodithiophene (BDT) copolymers are synthesized for application in organic photovoltaic (OPV) cells. The electron deficiency of the BTI units leads to polymers with a low-lying HOMOs (5.6 eV). Inverted solar cells are fabricated to investigate the OPV performance of the BTI-based polymers and achieve power conversion efficiencies up to 5.5%, with substantial V _ocs above 0.9 V which are among the highest V _ocs reported to date for polymer/PCBM solar cells. The results indicate that the BTI is a promising building block for constructing polymer donors for OPV applications.

Original language	English
Pages (from-to)	2242-2248
Number of pages	7
Journal	Advanced Materials
Volume	24
Issue number	17
DOIs	https://doi.org/10.1002/adma.201103948
State	Published - 2 May 2012
Externally published	Yes

Keywords

donor-acceptor polymers
imide-based polymers
metal oxides
morphology
organic photovoltaic cells

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1002/adma.201103948

Cite this

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abstract = "Bithiophene imide (BTI) and benzodithiophene (BDT) copolymers are synthesized for application in organic photovoltaic (OPV) cells. The electron deficiency of the BTI units leads to polymers with a low-lying HOMOs (5.6 eV). Inverted solar cells are fabricated to investigate the OPV performance of the BTI-based polymers and achieve power conversion efficiencies up to 5.5%, with substantial V ocs above 0.9 V which are among the highest V ocs reported to date for polymer/PCBM solar cells. The results indicate that the BTI is a promising building block for constructing polymer donors for OPV applications.",

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T1 - Bithiophene imide and benzodithiophene copolymers for efficient inverted polymer solar cells

AU - Zhou, Nanjia

AU - Guo, Xugang

AU - Ortiz, Rocio Ponce

AU - Li, Shiqiang

AU - Zhang, Shiming

AU - Chang, Robert P.H.

AU - Facchetti, Antonio

AU - Marks, Tobin J.

PY - 2012/5/2

Y1 - 2012/5/2

N2 - Bithiophene imide (BTI) and benzodithiophene (BDT) copolymers are synthesized for application in organic photovoltaic (OPV) cells. The electron deficiency of the BTI units leads to polymers with a low-lying HOMOs (5.6 eV). Inverted solar cells are fabricated to investigate the OPV performance of the BTI-based polymers and achieve power conversion efficiencies up to 5.5%, with substantial V ocs above 0.9 V which are among the highest V ocs reported to date for polymer/PCBM solar cells. The results indicate that the BTI is a promising building block for constructing polymer donors for OPV applications.

AB - Bithiophene imide (BTI) and benzodithiophene (BDT) copolymers are synthesized for application in organic photovoltaic (OPV) cells. The electron deficiency of the BTI units leads to polymers with a low-lying HOMOs (5.6 eV). Inverted solar cells are fabricated to investigate the OPV performance of the BTI-based polymers and achieve power conversion efficiencies up to 5.5%, with substantial V ocs above 0.9 V which are among the highest V ocs reported to date for polymer/PCBM solar cells. The results indicate that the BTI is a promising building block for constructing polymer donors for OPV applications.

KW - donor-acceptor polymers

KW - imide-based polymers

KW - metal oxides

KW - morphology

KW - organic photovoltaic cells

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DO - 10.1002/adma.201103948

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JO - Advanced Materials

JF - Advanced Materials

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Bithiophene imide and benzodithiophene copolymers for efficient inverted polymer solar cells

Abstract

Keywords

UN SDGs

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