Synthesis and characterization of a narrow-bandgap polymer containing alternating cyclopentadithiophene and diketo-pyrrolo-pyrrole units for solar cell applications

Guan Yu Chen; Chien Ming Chiang; Dhananjay Kekuda; Shang Che Lan; Chih Wei Chu; Kung Hwa Wei

doi:10.1002/pola.23931

Synthesis and characterization of a narrow-bandgap polymer containing alternating cyclopentadithiophene and diketo-pyrrolo-pyrrole units for solar cell applications

Guan Yu Chen, Chien Ming Chiang, Dhananjay Kekuda, Shang Che Lan, Chih Wei Chu, Kung Hwa Wei

Department of Physics, Manipal Institute of Technology, Manipal

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

69 Citations (Scopus)

Abstract

We have synthesized a narrow-bandgap conjugated polymer (PCTDPP) containing alternating cyclopentadithiophene (CT) and diketo-pyrrolo-pyrrole (DPP) units by Suzuki coupling. This PCTDPP exhibits a low band gap of 1.31 eV and a broad absorption band from 350 to 1000 nm, which allows it to absorb more available photons from sunlight. A bulk heterojunction polymer solar cell incorporating PCTDPP and C₇₀ at a blend ratio of 1:3 exhibited a high short-circuit current of 10.87 mA/cm² and a power conversion efficiency of 2.27%.

Original language	English
Pages (from-to)	1669-1675
Number of pages	7
Journal	Journal of Polymer Science, Part A: Polymer Chemistry
Volume	48
Issue number	7
DOIs	https://doi.org/10.1002/pola.23931
Publication status	Published - 01-04-2010

All Science Journal Classification (ASJC) codes

Polymers and Plastics
Organic Chemistry
Materials Chemistry

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10.1002/pola.23931

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title = "Synthesis and characterization of a narrow-bandgap polymer containing alternating cyclopentadithiophene and diketo-pyrrolo-pyrrole units for solar cell applications",

abstract = "We have synthesized a narrow-bandgap conjugated polymer (PCTDPP) containing alternating cyclopentadithiophene (CT) and diketo-pyrrolo-pyrrole (DPP) units by Suzuki coupling. This PCTDPP exhibits a low band gap of 1.31 eV and a broad absorption band from 350 to 1000 nm, which allows it to absorb more available photons from sunlight. A bulk heterojunction polymer solar cell incorporating PCTDPP and C70 at a blend ratio of 1:3 exhibited a high short-circuit current of 10.87 mA/cm2 and a power conversion efficiency of 2.27%.",

author = "Chen, {Guan Yu} and Chiang, {Chien Ming} and Dhananjay Kekuda and Lan, {Shang Che} and Chu, {Chih Wei} and Wei, {Kung Hwa}",

year = "2010",

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Synthesis and characterization of a narrow-bandgap polymer containing alternating cyclopentadithiophene and diketo-pyrrolo-pyrrole units for solar cell applications. / Chen, Guan Yu; Chiang, Chien Ming; Kekuda, Dhananjay et al.
In: Journal of Polymer Science, Part A: Polymer Chemistry, Vol. 48, No. 7, 01.04.2010, p. 1669-1675.

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

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T1 - Synthesis and characterization of a narrow-bandgap polymer containing alternating cyclopentadithiophene and diketo-pyrrolo-pyrrole units for solar cell applications

AU - Chen, Guan Yu

AU - Chiang, Chien Ming

AU - Kekuda, Dhananjay

AU - Lan, Shang Che

AU - Chu, Chih Wei

AU - Wei, Kung Hwa

PY - 2010/4/1

Y1 - 2010/4/1

N2 - We have synthesized a narrow-bandgap conjugated polymer (PCTDPP) containing alternating cyclopentadithiophene (CT) and diketo-pyrrolo-pyrrole (DPP) units by Suzuki coupling. This PCTDPP exhibits a low band gap of 1.31 eV and a broad absorption band from 350 to 1000 nm, which allows it to absorb more available photons from sunlight. A bulk heterojunction polymer solar cell incorporating PCTDPP and C70 at a blend ratio of 1:3 exhibited a high short-circuit current of 10.87 mA/cm2 and a power conversion efficiency of 2.27%.

AB - We have synthesized a narrow-bandgap conjugated polymer (PCTDPP) containing alternating cyclopentadithiophene (CT) and diketo-pyrrolo-pyrrole (DPP) units by Suzuki coupling. This PCTDPP exhibits a low band gap of 1.31 eV and a broad absorption band from 350 to 1000 nm, which allows it to absorb more available photons from sunlight. A bulk heterojunction polymer solar cell incorporating PCTDPP and C70 at a blend ratio of 1:3 exhibited a high short-circuit current of 10.87 mA/cm2 and a power conversion efficiency of 2.27%.

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Synthesis and characterization of a narrow-bandgap polymer containing alternating cyclopentadithiophene and diketo-pyrrolo-pyrrole units for solar cell applications

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