Ladder-type nonacyclic structure consisting of alternate thiophene and benzene units for efficient conventional and inverted organic photovoltaics

Yen Ju Cheng, Chiu Hsiang Chen, Yu Shun Lin, Chih Yu Chang, Chain Shu Hsu

研究成果: 雜誌貢獻文章

48 引文 (Scopus)

摘要

A ladder-type nonacyclic thienyl-phenylene-thienylene-phenylene-thienyl TPTPT unit, consisting of alternate interfused thiophene and benzene units, is designed and synthesized. This multifused distannyl-TPTPT monomer was polymerized with two electron-deficient acceptors, 4,7-dibromo-2,1,3- benzothiadiazole BT and 5,8-dibromo-2,3-diphenylquinoxaline QX monomers, by Stille coupling reaction to afford two alternating donor-acceptor copolymers, PTPTPTBT and PTPTPTQX, respectively. Because of the covalent planarization of the conjugated framework, PTPTPTBT simultaneously possess excellent solubilities for solution-processability, low bandgaps with suitable position of HOMO/LUMO energy levels, and high hole mobilities. The devices based on the PTPTPTBT/PC 71BM blend not only showed a promising PCE of 5.3% with conventional configuration but also achieved a high PCE of 5.9% with inverted configuration. This value is among the highest performance from the inverted solar cells incorporating a donor-acceptor low bandgap polymer.
原文英語
頁(從 - 到)5068-5075
頁數8
期刊Chemistry of Materials
23
發行號22
DOIs
出版狀態已發佈 - 十一月 22 2011
對外發佈Yes

指紋

Thiophenes
Ladders
Thiophene
Benzene
Energy gap
Monomers
Hole mobility
Electron energy levels
Solar cells
Polymers
Copolymers
Solubility
Electrons
9 alpha,11 alpha,15 alpha-trihydroxy-16-phenoxy-17,18,19,20-tetranorprosta-4,5,13-trienoic acid
5-p-dimethyl-aminophenylazobenzthiazole
4,7-dibromo-2,1,3-benzothiadiazole

ASJC Scopus subject areas

  • Materials Chemistry
  • Chemical Engineering(all)
  • Chemistry(all)

引用此文

Ladder-type nonacyclic structure consisting of alternate thiophene and benzene units for efficient conventional and inverted organic photovoltaics. / Cheng, Yen Ju; Chen, Chiu Hsiang; Lin, Yu Shun; Chang, Chih Yu; Hsu, Chain Shu.

於: Chemistry of Materials, 卷 23, 編號 22, 22.11.2011, p. 5068-5075.

研究成果: 雜誌貢獻文章

Cheng, Yen Ju ; Chen, Chiu Hsiang ; Lin, Yu Shun ; Chang, Chih Yu ; Hsu, Chain Shu. / Ladder-type nonacyclic structure consisting of alternate thiophene and benzene units for efficient conventional and inverted organic photovoltaics. 於: Chemistry of Materials. 2011 ; 卷 23, 編號 22. 頁 5068-5075.
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abstract = "A ladder-type nonacyclic thienyl-phenylene-thienylene-phenylene-thienyl TPTPT unit, consisting of alternate interfused thiophene and benzene units, is designed and synthesized. This multifused distannyl-TPTPT monomer was polymerized with two electron-deficient acceptors, 4,7-dibromo-2,1,3- benzothiadiazole BT and 5,8-dibromo-2,3-diphenylquinoxaline QX monomers, by Stille coupling reaction to afford two alternating donor-acceptor copolymers, PTPTPTBT and PTPTPTQX, respectively. Because of the covalent planarization of the conjugated framework, PTPTPTBT simultaneously possess excellent solubilities for solution-processability, low bandgaps with suitable position of HOMO/LUMO energy levels, and high hole mobilities. The devices based on the PTPTPTBT/PC 71BM blend not only showed a promising PCE of 5.3{\%} with conventional configuration but also achieved a high PCE of 5.9{\%} with inverted configuration. This value is among the highest performance from the inverted solar cells incorporating a donor-acceptor low bandgap polymer.",
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