Organic donor materials based on bis(arylene ethynylene)s for bulk heterojunction organic solar cells with high VOCvalues

Hongmei Zhan; Qian Liu; Fengrong Dai; Cheuk Lam Ho; Yingying Fu; Leijiao Li; Li Zhao; Hua Li; Zhiyuan Xie; Wai Yeung Wong

doi:10.1002/asia.201403264

Organic donor materials based on bis(arylene ethynylene)s for bulk heterojunction organic solar cells with high V_OCvalues

Hongmei Zhan, Qian Liu, Fengrong Dai, Cheuk Lam Ho, Yingying Fu, Leijiao Li, Li Zhao, Hua Li, Zhiyuan Xie, Wai Yeung Wong

Research output: Journal article publication › Journal article › Academic research › peer-review

12 Citations (Scopus)

Abstract

KGaA, Weinheim. A series of purely organic small molecules 1-4 based on bis(arylene ethynylene)s with various electron-rich aromatic bridges, such as benzene, cyclopentadithiophene (CDT), and diphenyl(p-tolyl)amine, were synthesized by a Sonogashira coupling reaction. Their optical, electronic, and electrochemical properties were fully characterized. The photovoltaic properties of these molecules as donor materials and [6,6]-phenyl-C71-butyric acid methyl ester as an acceptor material in solution-processed bulk heterojunction devices were studied. Among them, CDT-bridged molecule 2 exhibited the best photovoltaic performance and achieved a power conversion efficiency of 3.28%. In addition, the photovoltaic efficiencies of these molecules are higher than their corresponding platinum-containing counterparts, probably owing to their stronger light absorption and improved open-circuit voltage.

Original language	English
Pages (from-to)	1017-1024
Number of pages	8
Journal	Chemistry - An Asian Journal
Volume	10
Issue number	4
DOIs	https://doi.org/10.1002/asia.201403264
Publication status	Published - 1 Jan 2015
Externally published	Yes

Keywords

conjugation
donor-acceptor systems
electrochemistry
organic solar cells
photochemistry

ASJC Scopus subject areas

General Chemistry

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

More information

10.1002/asia.201403264

Cite this

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title = "Organic donor materials based on bis(arylene ethynylene)s for bulk heterojunction organic solar cells with high VOCvalues",

abstract = "KGaA, Weinheim. A series of purely organic small molecules 1-4 based on bis(arylene ethynylene)s with various electron-rich aromatic bridges, such as benzene, cyclopentadithiophene (CDT), and diphenyl(p-tolyl)amine, were synthesized by a Sonogashira coupling reaction. Their optical, electronic, and electrochemical properties were fully characterized. The photovoltaic properties of these molecules as donor materials and [6,6]-phenyl-C71-butyric acid methyl ester as an acceptor material in solution-processed bulk heterojunction devices were studied. Among them, CDT-bridged molecule 2 exhibited the best photovoltaic performance and achieved a power conversion efficiency of 3.28%. In addition, the photovoltaic efficiencies of these molecules are higher than their corresponding platinum-containing counterparts, probably owing to their stronger light absorption and improved open-circuit voltage.",

keywords = "conjugation, donor-acceptor systems, electrochemistry, organic solar cells, photochemistry",

author = "Hongmei Zhan and Qian Liu and Fengrong Dai and Ho, {Cheuk Lam} and Yingying Fu and Leijiao Li and Li Zhao and Hua Li and Zhiyuan Xie and Wong, {Wai Yeung}",

year = "2015",

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doi = "10.1002/asia.201403264",

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T1 - Organic donor materials based on bis(arylene ethynylene)s for bulk heterojunction organic solar cells with high VOCvalues

AU - Zhan, Hongmei

AU - Liu, Qian

AU - Dai, Fengrong

AU - Ho, Cheuk Lam

AU - Fu, Yingying

AU - Li, Leijiao

AU - Zhao, Li

AU - Li, Hua

AU - Xie, Zhiyuan

AU - Wong, Wai Yeung

PY - 2015/1/1

Y1 - 2015/1/1

N2 - KGaA, Weinheim. A series of purely organic small molecules 1-4 based on bis(arylene ethynylene)s with various electron-rich aromatic bridges, such as benzene, cyclopentadithiophene (CDT), and diphenyl(p-tolyl)amine, were synthesized by a Sonogashira coupling reaction. Their optical, electronic, and electrochemical properties were fully characterized. The photovoltaic properties of these molecules as donor materials and [6,6]-phenyl-C71-butyric acid methyl ester as an acceptor material in solution-processed bulk heterojunction devices were studied. Among them, CDT-bridged molecule 2 exhibited the best photovoltaic performance and achieved a power conversion efficiency of 3.28%. In addition, the photovoltaic efficiencies of these molecules are higher than their corresponding platinum-containing counterparts, probably owing to their stronger light absorption and improved open-circuit voltage.

AB - KGaA, Weinheim. A series of purely organic small molecules 1-4 based on bis(arylene ethynylene)s with various electron-rich aromatic bridges, such as benzene, cyclopentadithiophene (CDT), and diphenyl(p-tolyl)amine, were synthesized by a Sonogashira coupling reaction. Their optical, electronic, and electrochemical properties were fully characterized. The photovoltaic properties of these molecules as donor materials and [6,6]-phenyl-C71-butyric acid methyl ester as an acceptor material in solution-processed bulk heterojunction devices were studied. Among them, CDT-bridged molecule 2 exhibited the best photovoltaic performance and achieved a power conversion efficiency of 3.28%. In addition, the photovoltaic efficiencies of these molecules are higher than their corresponding platinum-containing counterparts, probably owing to their stronger light absorption and improved open-circuit voltage.

KW - conjugation

KW - donor-acceptor systems

KW - electrochemistry

KW - organic solar cells

KW - photochemistry

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DO - 10.1002/asia.201403264

M3 - Journal article

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EP - 1024

JO - Chemistry - An Asian Journal

JF - Chemistry - An Asian Journal

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