Donor-acceptor conjugated polymers based on thieno[3,2-b]indole (TI) and 2,1,3-benzothiadiazole (BT) for high efficiency polymer solar cells

被引：32

作者：

Huang, Hongyan ^{[1
,2
]}

Qiu, Meng ^{[3
]}

Li, Quan ^{[1
,2
]}

Liu, Shuli ^{[1
,2
]}

Zhang, Xinzhen ^{[1
,2
]}

Wang, Zheng ^{[1
,2
]}

Fu, Nina ^{[1
,2
]}

Zhao, Baomin ^{[1
,2
]}

Yang, Renqiang ^{[3
]}

Huang, Wei ^{[1
,2
,4
,5
]}

机构：

[1] Nanjing Univ Posts & Telecommun, Jiangsu Natl Synerget Innovat Ctr Adv Mat SICAM, Key Lab Organ Elect & Informat Displays, 9 Wenyuan Rd, Nanjing 210023, Jiangsu, Peoples R China

[2] Nanjing Univ Posts & Telecommun, Jiangsu Natl Synerget Innovat Ctr Adv Mat SICAM, IAM, 9 Wenyuan Rd, Nanjing 210023, Jiangsu, Peoples R China

[3] Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, CAS Key Lab Biobased Mat, Qingdao 266101, Peoples R China

[4] Nanjing Tech Univ Nanjing Tech, Jiangsu Natl Synerget Innovat Ctr Adv Mat SICAM, KLOFE, 30 South Puzhu Rd, Nanjing 211816, Jiangsu, Peoples R China

[5] Nanjing Tech Univ Nanjing Tech, Jiangsu Natl Synerget Innovat Ctr Adv Mat SICAM, IAM, 30 South Puzhu Rd, Nanjing 211816, Jiangsu, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY C | 2016年 / 4卷 / 23期

基金：

中国国家自然科学基金;

关键词：

FIELD-EFFECT TRANSISTORS; OPEN-CIRCUIT VOLTAGE; RATIONAL DESIGN; PHOTOVOLTAIC CELLS; BANDGAP; MORPHOLOGY; COPOLYMERS; POLY(2,7-CARBAZOLE); CARBAZOLE; IMPROVE;

D O I：

10.1039/c6tc00929h

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A universal synthetic strategy toward thieno[3,2-b]indole (TI) derivatives was developed. Three conjugated polymers (PTIBT, PTITBT and PTIDTBT) containing N-alkyl-TI as the donor units, 2,1,3-benzodiathiazole (BT) as the acceptor units and thiophene as the spacers were synthesized. The thiophene spacers have a dramatic impact on the physical and electrochemical properties of these copolymers. These polymer donors were used for the fabrication of bulk heterojunction polymer solar cells (PSCs). Preliminarily, power conversion efficiencies (PCEs) based on the device structure of ITO/PEDOT:PSS/polymer: PC71BM/Ca/Al exhibit a large distinction (1.61% for PTIBT, 5.83% for PTITBT and 1.79% for PTIDTBT) at optimal device fabrication conditions. The device based on PTITBT: PC71BM (1:3, w/w) shows the best PCE of 5.83% (V-oc = 0.69 V, J(sc) = 13.92 mA cm(-2), FF = 61.8%), which represents one of the best performances among PCDTBT analogues. In addition, the J(sc) of 13.92 mA cm(-2) is also among the highest J(sc) values of all PCDTBT analogues. On the basis of our results, one can conclude that incorporating TI and its derivatives into donor-acceptor conjugated polymers is a feasible and effective way to develop novel donor materials for high efficiency PSC applications.

引用

页码：5448 / 5460

页数：13

共 64 条

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