Manipulating backbone structure with various conjugated spacers to enhance photovoltaic performance of D-A-type two-dimensional copolymers

Dongfeng Dang; Manjun Xiao; Pei Zhou; Junwei Shi; Qiang Tao; Hua Tan; Yafei Wang; Xichang Bao; Yu Liu; Ergang Wang; Renqiang Yang; Weiguo Zhu

doi:10.1016/j.orgel.2014.08.022

Manipulating backbone structure with various conjugated spacers to enhance photovoltaic performance of D-A-type two-dimensional copolymers

Dongfeng Dang
, Manjun Xiao
, Pei Zhou
, Junwei Shi
, Qiang Tao
, Hua Tan
, Yafei Wang
, Xichang Bao
, Yu Liu
, Ergang Wang
, Renqiang Yang
, Weiguo Zhu

XiangTan University
CAS - Qingdao Institute of Biomass Energy and Bioprocess Technology
Chalmers University of Technology

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

45 Scopus citations

Abstract

A class of low band-gap two-dimensional conjugated polymers of PBDTT-FQ, PBDTT-TQ, PBDTT-BTQ and PBDTT-TTQ was designed and synthesized, which contains the same di(alkylthiophene)-substituted benzo[1,2-b:4,5-b′]dithiophene (BDTT) and 6,7-difluoroquinoxaline (Q) units, as well as various conjugated spacers of furan, thiophene, bithiophene and thieno[3,2-b]thiophene in the main chain. Significant effect of the varied spacers between the BDTT and Q units on the thermal, optical, electrochemical and photovoltaic properties was investigated and observed for these two-dimensional copolymers in the polymer solar cells. The maximum power conversion efficiency of 5.9% with a short circuit current of 13.7 mA/cm²and a fill factor of 0.56 was obtained for the PBDTT-TQ with thiophene spacer in the bulk hetero-junction PSCs using [6,6]-phenyl-C₇₁-butyric acid methyl ester as acceptor.

Original language	English
Pages (from-to)	2876-2884
Number of pages	9
Journal	Organic Electronics
Volume	15
Issue number	11
DOIs	https://doi.org/10.1016/j.orgel.2014.08.022
State	Published - Nov 2014
Externally published	Yes

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

Conjugated spacers
Photovoltaic properties
Polymer solar cells
Two-dimensional copolymers

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10.1016/j.orgel.2014.08.022

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@article{a32290c81a074020b5c12d23da552c7b,

title = "Manipulating backbone structure with various conjugated spacers to enhance photovoltaic performance of D-A-type two-dimensional copolymers",

abstract = "A class of low band-gap two-dimensional conjugated polymers of PBDTT-FQ, PBDTT-TQ, PBDTT-BTQ and PBDTT-TTQ was designed and synthesized, which contains the same di(alkylthiophene)-substituted benzo[1,2-b:4,5-b′]dithiophene (BDTT) and 6,7-difluoroquinoxaline (Q) units, as well as various conjugated spacers of furan, thiophene, bithiophene and thieno[3,2-b]thiophene in the main chain. Significant effect of the varied spacers between the BDTT and Q units on the thermal, optical, electrochemical and photovoltaic properties was investigated and observed for these two-dimensional copolymers in the polymer solar cells. The maximum power conversion efficiency of 5.9\% with a short circuit current of 13.7 mA/cm2and a fill factor of 0.56 was obtained for the PBDTT-TQ with thiophene spacer in the bulk hetero-junction PSCs using [6,6]-phenyl-C71-butyric acid methyl ester as acceptor.",

keywords = "Conjugated spacers, Photovoltaic properties, Polymer solar cells, Two-dimensional copolymers",

author = "Dongfeng Dang and Manjun Xiao and Pei Zhou and Junwei Shi and Qiang Tao and Hua Tan and Yafei Wang and Xichang Bao and Yu Liu and Ergang Wang and Renqiang Yang and Weiguo Zhu",

year = "2014",

month = nov,

doi = "10.1016/j.orgel.2014.08.022",

language = "英语",

volume = "15",

pages = "2876--2884",

journal = "Organic Electronics",

issn = "1566-1199",

publisher = "Elsevier B.V.",

number = "11",

}

TY - JOUR

T1 - Manipulating backbone structure with various conjugated spacers to enhance photovoltaic performance of D-A-type two-dimensional copolymers

AU - Dang, Dongfeng

AU - Xiao, Manjun

AU - Zhou, Pei

AU - Shi, Junwei

AU - Tao, Qiang

AU - Tan, Hua

AU - Wang, Yafei

AU - Bao, Xichang

AU - Liu, Yu

AU - Wang, Ergang

AU - Yang, Renqiang

AU - Zhu, Weiguo

PY - 2014/11

Y1 - 2014/11

N2 - A class of low band-gap two-dimensional conjugated polymers of PBDTT-FQ, PBDTT-TQ, PBDTT-BTQ and PBDTT-TTQ was designed and synthesized, which contains the same di(alkylthiophene)-substituted benzo[1,2-b:4,5-b′]dithiophene (BDTT) and 6,7-difluoroquinoxaline (Q) units, as well as various conjugated spacers of furan, thiophene, bithiophene and thieno[3,2-b]thiophene in the main chain. Significant effect of the varied spacers between the BDTT and Q units on the thermal, optical, electrochemical and photovoltaic properties was investigated and observed for these two-dimensional copolymers in the polymer solar cells. The maximum power conversion efficiency of 5.9% with a short circuit current of 13.7 mA/cm2and a fill factor of 0.56 was obtained for the PBDTT-TQ with thiophene spacer in the bulk hetero-junction PSCs using [6,6]-phenyl-C71-butyric acid methyl ester as acceptor.

AB - A class of low band-gap two-dimensional conjugated polymers of PBDTT-FQ, PBDTT-TQ, PBDTT-BTQ and PBDTT-TTQ was designed and synthesized, which contains the same di(alkylthiophene)-substituted benzo[1,2-b:4,5-b′]dithiophene (BDTT) and 6,7-difluoroquinoxaline (Q) units, as well as various conjugated spacers of furan, thiophene, bithiophene and thieno[3,2-b]thiophene in the main chain. Significant effect of the varied spacers between the BDTT and Q units on the thermal, optical, electrochemical and photovoltaic properties was investigated and observed for these two-dimensional copolymers in the polymer solar cells. The maximum power conversion efficiency of 5.9% with a short circuit current of 13.7 mA/cm2and a fill factor of 0.56 was obtained for the PBDTT-TQ with thiophene spacer in the bulk hetero-junction PSCs using [6,6]-phenyl-C71-butyric acid methyl ester as acceptor.

KW - Conjugated spacers

KW - Photovoltaic properties

KW - Polymer solar cells

KW - Two-dimensional copolymers

UR - https://www.scopus.com/pages/publications/84907219328

U2 - 10.1016/j.orgel.2014.08.022

DO - 10.1016/j.orgel.2014.08.022

M3 - 文章

AN - SCOPUS:84907219328

SN - 1566-1199

VL - 15

SP - 2876

EP - 2884

JO - Organic Electronics

JF - Organic Electronics

IS - 11

ER -

Manipulating backbone structure with various conjugated spacers to enhance photovoltaic performance of D-A-type two-dimensional copolymers

Abstract

UN SDGs

Keywords

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