A side chain-modified quaterthiophene derivative for enhancing the performance of organic solar cell devices

Hyojung Cha; Jong Won Park; Dae Sung Chung; Tae Kyu An; Yun Hi Kim; Soon Ki Kwon; Chan Eon Park

doi:10.1039/c2jm32354k

A side chain-modified quaterthiophene derivative for enhancing the performance of organic solar cell devices

Hyojung Cha, Jong Won Park, Dae Sung Chung, Tae Kyu An, Yun Hi Kim, Soon Ki Kwon, Chan Eon Park

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

15 Scopus citations

Abstract

A conjugated polymer donor material, poly(3,4′′′- di(decylthiophenyl)quaterthiophene) (PDTQT), featuring decylthiophenyl side chains on the polymer backbone, was introduced to reduce the crystallinity of poly(quaterthiophene) (PQT-C12) layers in organic photovoltaic cells. The resulting PDTQT:PC₇₁BM blend active layer formed a well-interpenetrated nanoscale morphology that increased the power conversion efficiency (PCE) relative to devices based on highly crystalline PQT-C12. Bulk heterojunction solar cells fabricated using the PDTQT:PC₇₁BM blend thin films yielded the best photovoltaic performances with a high short-circuit current density of 9.8 mA cm^-2, a high open-circuit voltage of 0.91 V, a fill factor of 0.36, and a high PCE of 3.2% under AM 1.5G illumination with an intensity of 100 mW cm^-2. Decylthiophenyl side chain substitution appeared to be an effective strategy for obtaining high organic photovoltaic cell device performances.

Original language	English
Pages (from-to)	15141-15145
Number of pages	5
Journal	Journal of Materials Chemistry
Volume	22
Issue number	30
DOIs	https://doi.org/10.1039/c2jm32354k
State	Published - 14 Aug 2012

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title = "A side chain-modified quaterthiophene derivative for enhancing the performance of organic solar cell devices",

abstract = "A conjugated polymer donor material, poly(3,4′′′- di(decylthiophenyl)quaterthiophene) (PDTQT), featuring decylthiophenyl side chains on the polymer backbone, was introduced to reduce the crystallinity of poly(quaterthiophene) (PQT-C12) layers in organic photovoltaic cells. The resulting PDTQT:PC71BM blend active layer formed a well-interpenetrated nanoscale morphology that increased the power conversion efficiency (PCE) relative to devices based on highly crystalline PQT-C12. Bulk heterojunction solar cells fabricated using the PDTQT:PC71BM blend thin films yielded the best photovoltaic performances with a high short-circuit current density of 9.8 mA cm-2, a high open-circuit voltage of 0.91 V, a fill factor of 0.36, and a high PCE of 3.2\% under AM 1.5G illumination with an intensity of 100 mW cm-2. Decylthiophenyl side chain substitution appeared to be an effective strategy for obtaining high organic photovoltaic cell device performances.",

author = "Hyojung Cha and Park, \{Jong Won\} and Chung, \{Dae Sung\} and An, \{Tae Kyu\} and Kim, \{Yun Hi\} and Kwon, \{Soon Ki\} and Park, \{Chan Eon\}",

year = "2012",

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doi = "10.1039/c2jm32354k",

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T1 - A side chain-modified quaterthiophene derivative for enhancing the performance of organic solar cell devices

AU - Cha, Hyojung

AU - Park, Jong Won

AU - Chung, Dae Sung

AU - An, Tae Kyu

AU - Kim, Yun Hi

AU - Kwon, Soon Ki

AU - Park, Chan Eon

PY - 2012/8/14

Y1 - 2012/8/14

N2 - A conjugated polymer donor material, poly(3,4′′′- di(decylthiophenyl)quaterthiophene) (PDTQT), featuring decylthiophenyl side chains on the polymer backbone, was introduced to reduce the crystallinity of poly(quaterthiophene) (PQT-C12) layers in organic photovoltaic cells. The resulting PDTQT:PC71BM blend active layer formed a well-interpenetrated nanoscale morphology that increased the power conversion efficiency (PCE) relative to devices based on highly crystalline PQT-C12. Bulk heterojunction solar cells fabricated using the PDTQT:PC71BM blend thin films yielded the best photovoltaic performances with a high short-circuit current density of 9.8 mA cm-2, a high open-circuit voltage of 0.91 V, a fill factor of 0.36, and a high PCE of 3.2% under AM 1.5G illumination with an intensity of 100 mW cm-2. Decylthiophenyl side chain substitution appeared to be an effective strategy for obtaining high organic photovoltaic cell device performances.

AB - A conjugated polymer donor material, poly(3,4′′′- di(decylthiophenyl)quaterthiophene) (PDTQT), featuring decylthiophenyl side chains on the polymer backbone, was introduced to reduce the crystallinity of poly(quaterthiophene) (PQT-C12) layers in organic photovoltaic cells. The resulting PDTQT:PC71BM blend active layer formed a well-interpenetrated nanoscale morphology that increased the power conversion efficiency (PCE) relative to devices based on highly crystalline PQT-C12. Bulk heterojunction solar cells fabricated using the PDTQT:PC71BM blend thin films yielded the best photovoltaic performances with a high short-circuit current density of 9.8 mA cm-2, a high open-circuit voltage of 0.91 V, a fill factor of 0.36, and a high PCE of 3.2% under AM 1.5G illumination with an intensity of 100 mW cm-2. Decylthiophenyl side chain substitution appeared to be an effective strategy for obtaining high organic photovoltaic cell device performances.

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DO - 10.1039/c2jm32354k

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JO - Journal of Materials Chemistry

JF - Journal of Materials Chemistry

IS - 30

ER -

A side chain-modified quaterthiophene derivative for enhancing the performance of organic solar cell devices

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