3,6-carbazole incorporated into poly[9,9-dioctylfluorene-alt-(bisthienyl) benzothiadiazole]s improving the power conversion efficiency

Yuanhe Fu; Hyojung Cha; Gang Young Lee; Byung Joon Moon; Chan Eon Park; Taiho Park

doi:10.1021/ma3002438

3,6-carbazole incorporated into poly[9,9-dioctylfluorene-alt-(bisthienyl) benzothiadiazole]s improving the power conversion efficiency

Yuanhe Fu, Hyojung Cha, Gang Young Lee, Byung Joon Moon, Chan Eon Park, Taiho Park

Major in Hydrogen & Renewable Energy

Pohang University of Science and Technology

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

43 Scopus citations

Abstract

A novel concept of D-A-type copolymers based on fluorene polymer incorporated with 3,6-carbazole unit enhances the device performance for organic photovoltaic cells. P(F ₄₅C ₅-DTBT), incorporating 5 mol % 3,6-carbazole into P(2,7F-DTBT), shows an almost 2-fold improvement (5.1%) in power conversion efficiency relative to P(2,7F-DTBT) (2.6%). This results is ascribed to the good balance between electron and hole mobilities in the devices (μ _e/μ _h ∼ 1.8 for P(F ₄₅C ₅-DTBT) vs 152 for P(2,7F-DTBT)), and the formation of a nanoscale morphology in the blend of the copolymer and [6,6]-phenyl C71-butyric acid methyl ester (PC ₇₁BM).

Original language	English
Pages (from-to)	3004-3009
Number of pages	6
Journal	Macromolecules
Volume	45
Issue number	7
DOIs	https://doi.org/10.1021/ma3002438
State	Published - 10 Apr 2012

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10.1021/ma3002438

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@article{4d8ad08be8bb436998c01d4bda9b60d2,

title = "3,6-carbazole incorporated into poly[9,9-dioctylfluorene-alt-(bisthienyl) benzothiadiazole]s improving the power conversion efficiency",

abstract = "A novel concept of D-A-type copolymers based on fluorene polymer incorporated with 3,6-carbazole unit enhances the device performance for organic photovoltaic cells. P(F 45C 5-DTBT), incorporating 5 mol % 3,6-carbazole into P(2,7F-DTBT), shows an almost 2-fold improvement (5.1%) in power conversion efficiency relative to P(2,7F-DTBT) (2.6%). This results is ascribed to the good balance between electron and hole mobilities in the devices (μ e/μ h ∼ 1.8 for P(F 45C 5-DTBT) vs 152 for P(2,7F-DTBT)), and the formation of a nanoscale morphology in the blend of the copolymer and [6,6]-phenyl C71-butyric acid methyl ester (PC 71BM).",

author = "Yuanhe Fu and Hyojung Cha and Lee, {Gang Young} and Moon, {Byung Joon} and Park, {Chan Eon} and Taiho Park",

year = "2012",

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doi = "10.1021/ma3002438",

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pages = "3004--3009",

journal = "Macromolecules",

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T1 - 3,6-carbazole incorporated into poly[9,9-dioctylfluorene-alt-(bisthienyl) benzothiadiazole]s improving the power conversion efficiency

AU - Fu, Yuanhe

AU - Cha, Hyojung

AU - Lee, Gang Young

AU - Moon, Byung Joon

AU - Park, Chan Eon

AU - Park, Taiho

PY - 2012/4/10

Y1 - 2012/4/10

N2 - A novel concept of D-A-type copolymers based on fluorene polymer incorporated with 3,6-carbazole unit enhances the device performance for organic photovoltaic cells. P(F 45C 5-DTBT), incorporating 5 mol % 3,6-carbazole into P(2,7F-DTBT), shows an almost 2-fold improvement (5.1%) in power conversion efficiency relative to P(2,7F-DTBT) (2.6%). This results is ascribed to the good balance between electron and hole mobilities in the devices (μ e/μ h ∼ 1.8 for P(F 45C 5-DTBT) vs 152 for P(2,7F-DTBT)), and the formation of a nanoscale morphology in the blend of the copolymer and [6,6]-phenyl C71-butyric acid methyl ester (PC 71BM).

AB - A novel concept of D-A-type copolymers based on fluorene polymer incorporated with 3,6-carbazole unit enhances the device performance for organic photovoltaic cells. P(F 45C 5-DTBT), incorporating 5 mol % 3,6-carbazole into P(2,7F-DTBT), shows an almost 2-fold improvement (5.1%) in power conversion efficiency relative to P(2,7F-DTBT) (2.6%). This results is ascribed to the good balance between electron and hole mobilities in the devices (μ e/μ h ∼ 1.8 for P(F 45C 5-DTBT) vs 152 for P(2,7F-DTBT)), and the formation of a nanoscale morphology in the blend of the copolymer and [6,6]-phenyl C71-butyric acid methyl ester (PC 71BM).

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ER -

3,6-carbazole incorporated into poly[9,9-dioctylfluorene-alt-(bisthienyl) benzothiadiazole]s improving the power conversion efficiency

Abstract

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