Fused dithienogermolodithiophene low band gap polymers for high-performance organic solar cells without processing additives

Hongliang Zhong; Zhe Li; Florent Deledalle; Elisa Collado Fregoso; Munazza Shahid; Zhuping Fei; Christian B. Nielsen; Nir Yaacobi-Gross; Stephan Rossbauer; Thomas D. Anthopoulos; James R. Durrant; Martin Heeney

doi:10.1021/ja311700u

Fused dithienogermolodithiophene low band gap polymers for high-performance organic solar cells without processing additives

Hongliang Zhong, Zhe Li, Florent Deledalle, Elisa Collado Fregoso, Munazza Shahid, Zhuping Fei, Christian B. Nielsen, Nir Yaacobi-Gross, Stephan Rossbauer, Thomas D. Anthopoulos, James R. Durrant^*, Martin Heeney

^*Corresponding author for this work

Physical Sciences and Engineering

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

137 Scopus citations

Abstract

We report the synthesis of a novel ladder-type fused ring donor, dithienogermolodithiophene, in which two thieno[3,2-b]thiophene units are held coplanar by a bridging dialkyl germanium. Polymerization of this extended monomer with N-octylthienopyrrolodione by Stille polycondensation afforded a polymer, pDTTG-TPD, with an optical band gap of 1.75 eV combined with a high ionization potential. Bulk heterojunction solar cells based upon pDTTG-TPD:PC₇₁BM blends afforded efficiencies up to 7.2% without the need for thermal annealing or processing additives.

Original language	English (US)
Pages (from-to)	2040-2043
Number of pages	4
Journal	Journal of the American Chemical Society
Volume	135
Issue number	6
DOIs	https://doi.org/10.1021/ja311700u
State	Published - Feb 13 2013

ASJC Scopus subject areas

Catalysis
Chemistry(all)
Biochemistry
Colloid and Surface Chemistry

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Zhong, H., Li, Z., Deledalle, F., Fregoso, E. C., Shahid, M., Fei, Z., Nielsen, C. B., Yaacobi-Gross, N., Rossbauer, S., Anthopoulos, T. D., Durrant, J. R., & Heeney, M. (2013). Fused dithienogermolodithiophene low band gap polymers for high-performance organic solar cells without processing additives. Journal of the American Chemical Society, 135(6), 2040-2043. https://doi.org/10.1021/ja311700u

@article{f7c4d2593a4b45559d720885c81c798d,

title = "Fused dithienogermolodithiophene low band gap polymers for high-performance organic solar cells without processing additives",

abstract = "We report the synthesis of a novel ladder-type fused ring donor, dithienogermolodithiophene, in which two thieno[3,2-b]thiophene units are held coplanar by a bridging dialkyl germanium. Polymerization of this extended monomer with N-octylthienopyrrolodione by Stille polycondensation afforded a polymer, pDTTG-TPD, with an optical band gap of 1.75 eV combined with a high ionization potential. Bulk heterojunction solar cells based upon pDTTG-TPD:PC71BM blends afforded efficiencies up to 7.2% without the need for thermal annealing or processing additives.",

author = "Hongliang Zhong and Zhe Li and Florent Deledalle and Fregoso, {Elisa Collado} and Munazza Shahid and Zhuping Fei and Nielsen, {Christian B.} and Nir Yaacobi-Gross and Stephan Rossbauer and Anthopoulos, {Thomas D.} and Durrant, {James R.} and Martin Heeney",

year = "2013",

month = feb,

day = "13",

doi = "10.1021/ja311700u",

language = "English (US)",

volume = "135",

pages = "2040--2043",

journal = "Journal of the American Chemical Society",

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Zhong, H, Li, Z, Deledalle, F, Fregoso, EC, Shahid, M, Fei, Z, Nielsen, CB, Yaacobi-Gross, N, Rossbauer, S, Anthopoulos, TD, Durrant, JR & Heeney, M 2013, 'Fused dithienogermolodithiophene low band gap polymers for high-performance organic solar cells without processing additives', Journal of the American Chemical Society, vol. 135, no. 6, pp. 2040-2043. https://doi.org/10.1021/ja311700u

TY - JOUR

T1 - Fused dithienogermolodithiophene low band gap polymers for high-performance organic solar cells without processing additives

AU - Zhong, Hongliang

AU - Li, Zhe

AU - Deledalle, Florent

AU - Fregoso, Elisa Collado

AU - Shahid, Munazza

AU - Fei, Zhuping

AU - Nielsen, Christian B.

AU - Yaacobi-Gross, Nir

AU - Rossbauer, Stephan

AU - Anthopoulos, Thomas D.

AU - Durrant, James R.

AU - Heeney, Martin

PY - 2013/2/13

Y1 - 2013/2/13

N2 - We report the synthesis of a novel ladder-type fused ring donor, dithienogermolodithiophene, in which two thieno[3,2-b]thiophene units are held coplanar by a bridging dialkyl germanium. Polymerization of this extended monomer with N-octylthienopyrrolodione by Stille polycondensation afforded a polymer, pDTTG-TPD, with an optical band gap of 1.75 eV combined with a high ionization potential. Bulk heterojunction solar cells based upon pDTTG-TPD:PC71BM blends afforded efficiencies up to 7.2% without the need for thermal annealing or processing additives.

AB - We report the synthesis of a novel ladder-type fused ring donor, dithienogermolodithiophene, in which two thieno[3,2-b]thiophene units are held coplanar by a bridging dialkyl germanium. Polymerization of this extended monomer with N-octylthienopyrrolodione by Stille polycondensation afforded a polymer, pDTTG-TPD, with an optical band gap of 1.75 eV combined with a high ionization potential. Bulk heterojunction solar cells based upon pDTTG-TPD:PC71BM blends afforded efficiencies up to 7.2% without the need for thermal annealing or processing additives.

UR - http://www.scopus.com/inward/record.url?scp=84873690330&partnerID=8YFLogxK

U2 - 10.1021/ja311700u

DO - 10.1021/ja311700u

M3 - Article

C2 - 23350611

AN - SCOPUS:84873690330

VL - 135

SP - 2040

EP - 2043

JO - Journal of the American Chemical Society

JF - Journal of the American Chemical Society

SN - 0002-7863

IS - 6

ER -

Fused dithienogermolodithiophene low band gap polymers for high-performance organic solar cells without processing additives

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