Enhanced photovoltaic properties of di(dodecylthiophene)-alt-2,3-di(3-octoxylphenyl)-5,8-dithieno[3,2-b]thiophene 6,7-difluoroquinoxaline copolymer by fluorination

Pei Zhou; Jiang Fan; Dongfeng Dang; Junwei Shi; Xiangdong Wang; Wenhong Peng; Hua Tan; Yafei Wang; Yu Liu; Weiguo Zhu

doi:10.1016/j.dyepig.2014.09.002

Enhanced photovoltaic properties of di(dodecylthiophene)-alt-2,3-di(3-octoxylphenyl)-5,8-dithieno[3,2-b]thiophene 6,7-difluoroquinoxaline copolymer by fluorination

Pei Zhou
, Jiang Fan
, Dongfeng Dang
, Junwei Shi
, Xiangdong Wang
, Wenhong Peng
, Hua Tan
, Yafei Wang
, Yu Liu
, Weiguo Zhu

XiangTan University

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

4 Scopus citations

Abstract

A novel di(dodecylthiophene)-alt-2,3-di(3-octoxylphenyl)-5,8-dithieno[3,2-b]thiophene-6,7-difluoro quinoxaline copolymer (PBT-TTQ-F) and its counterpart of PBT-TTQ-H without the substituted fluorine atom were designed and synthesized. Significant effect of the attaching fluorine atoms in the polymer backbone on photovoltaic properties of copolymers was observed. In the optimized bulk hetero-junction polymer solar cells with a structure of ITO/PEDOT: PSS/copolymers: PC₇₁BM (1:2, w/w)/Ca/Al, PBT-TTQ-F exhibited a higher power conversion efficiency (PCE) of 3.05% with a short-circuit current (J_sc) of 9.48 mA/cm²and a fill factor (FF) of 48.6% under an illumination of AM 1.5, 100 mW/cm². The PCE, J_scand FF values are 1.2-1.7 times higher than those of the PBT-TTQ-H-based devices. Our results demonstrated that photovoltaic properties could be significantly enhanced by copolymeric fluorination in PCSc.

Original language	English
Pages (from-to)	312-317
Number of pages	6
Journal	Dyes and Pigments
Volume	113
DOIs	https://doi.org/10.1016/j.dyepig.2014.09.002
State	Published - Feb 2015
Externally published	Yes

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

Bulk heterojunction polymer solar cells
Conjugated polymers
D-A type
Fluorine
Photovoltaic properties
Quinoxaline

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10.1016/j.dyepig.2014.09.002

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@article{cd25de941bfd4030b608fa7fb49377a6,

title = "Enhanced photovoltaic properties of di(dodecylthiophene)-alt-2,3-di(3-octoxylphenyl)-5,8-dithieno[3,2-b]thiophene 6,7-difluoroquinoxaline copolymer by fluorination",

abstract = "A novel di(dodecylthiophene)-alt-2,3-di(3-octoxylphenyl)-5,8-dithieno[3,2-b]thiophene-6,7-difluoro quinoxaline copolymer (PBT-TTQ-F) and its counterpart of PBT-TTQ-H without the substituted fluorine atom were designed and synthesized. Significant effect of the attaching fluorine atoms in the polymer backbone on photovoltaic properties of copolymers was observed. In the optimized bulk hetero-junction polymer solar cells with a structure of ITO/PEDOT: PSS/copolymers: PC71BM (1:2, w/w)/Ca/Al, PBT-TTQ-F exhibited a higher power conversion efficiency (PCE) of 3.05\% with a short-circuit current (Jsc) of 9.48 mA/cm2and a fill factor (FF) of 48.6\% under an illumination of AM 1.5, 100 mW/cm2. The PCE, Jscand FF values are 1.2-1.7 times higher than those of the PBT-TTQ-H-based devices. Our results demonstrated that photovoltaic properties could be significantly enhanced by copolymeric fluorination in PCSc.",

keywords = "Bulk heterojunction polymer solar cells, Conjugated polymers, D-A type, Fluorine, Photovoltaic properties, Quinoxaline",

author = "Pei Zhou and Jiang Fan and Dongfeng Dang and Junwei Shi and Xiangdong Wang and Wenhong Peng and Hua Tan and Yafei Wang and Yu Liu and Weiguo Zhu",

year = "2015",

month = feb,

doi = "10.1016/j.dyepig.2014.09.002",

language = "英语",

volume = "113",

pages = "312--317",

journal = "Dyes and Pigments",

issn = "0143-7208",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Enhanced photovoltaic properties of di(dodecylthiophene)-alt-2,3-di(3-octoxylphenyl)-5,8-dithieno[3,2-b]thiophene 6,7-difluoroquinoxaline copolymer by fluorination

AU - Zhou, Pei

AU - Fan, Jiang

AU - Dang, Dongfeng

AU - Shi, Junwei

AU - Wang, Xiangdong

AU - Peng, Wenhong

AU - Tan, Hua

AU - Wang, Yafei

AU - Liu, Yu

AU - Zhu, Weiguo

PY - 2015/2

Y1 - 2015/2

N2 - A novel di(dodecylthiophene)-alt-2,3-di(3-octoxylphenyl)-5,8-dithieno[3,2-b]thiophene-6,7-difluoro quinoxaline copolymer (PBT-TTQ-F) and its counterpart of PBT-TTQ-H without the substituted fluorine atom were designed and synthesized. Significant effect of the attaching fluorine atoms in the polymer backbone on photovoltaic properties of copolymers was observed. In the optimized bulk hetero-junction polymer solar cells with a structure of ITO/PEDOT: PSS/copolymers: PC71BM (1:2, w/w)/Ca/Al, PBT-TTQ-F exhibited a higher power conversion efficiency (PCE) of 3.05% with a short-circuit current (Jsc) of 9.48 mA/cm2and a fill factor (FF) of 48.6% under an illumination of AM 1.5, 100 mW/cm2. The PCE, Jscand FF values are 1.2-1.7 times higher than those of the PBT-TTQ-H-based devices. Our results demonstrated that photovoltaic properties could be significantly enhanced by copolymeric fluorination in PCSc.

AB - A novel di(dodecylthiophene)-alt-2,3-di(3-octoxylphenyl)-5,8-dithieno[3,2-b]thiophene-6,7-difluoro quinoxaline copolymer (PBT-TTQ-F) and its counterpart of PBT-TTQ-H without the substituted fluorine atom were designed and synthesized. Significant effect of the attaching fluorine atoms in the polymer backbone on photovoltaic properties of copolymers was observed. In the optimized bulk hetero-junction polymer solar cells with a structure of ITO/PEDOT: PSS/copolymers: PC71BM (1:2, w/w)/Ca/Al, PBT-TTQ-F exhibited a higher power conversion efficiency (PCE) of 3.05% with a short-circuit current (Jsc) of 9.48 mA/cm2and a fill factor (FF) of 48.6% under an illumination of AM 1.5, 100 mW/cm2. The PCE, Jscand FF values are 1.2-1.7 times higher than those of the PBT-TTQ-H-based devices. Our results demonstrated that photovoltaic properties could be significantly enhanced by copolymeric fluorination in PCSc.

KW - Bulk heterojunction polymer solar cells

KW - Conjugated polymers

KW - D-A type

KW - Fluorine

KW - Photovoltaic properties

KW - Quinoxaline

UR - https://www.scopus.com/pages/publications/84907187828

U2 - 10.1016/j.dyepig.2014.09.002

DO - 10.1016/j.dyepig.2014.09.002

M3 - 文章

AN - SCOPUS:84907187828

SN - 0143-7208

VL - 113

SP - 312

EP - 317

JO - Dyes and Pigments

JF - Dyes and Pigments

ER -

Enhanced photovoltaic properties of di(dodecylthiophene)-alt-2,3-di(3-octoxylphenyl)-5,8-dithieno[3,2-b]thiophene 6,7-difluoroquinoxaline copolymer by fluorination

Abstract

UN SDGs

Keywords

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