D-A Copolymers Based on a Pentacyclic Acceptor Unit and a 3, 3'-Difluoro-2, 2'-bithiophene for Solar Cells

Jia-min Cao; Liu Qian; Dan He; Zuo Xiao; Li-ming Ding

doi:10.1007/s10118-017-1996-4

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D-A Copolymers Based on a Pentacyclic Acceptor Unit and a 3, 3'-Difluoro-2, 2'-bithiophene for Solar Cells

Papers | Updated：2021-02-18

- D-A Copolymers Based on a Pentacyclic Acceptor Unit and a 3, 3'-Difluoro-2, 2'-bithiophene for Solar Cells
- Chinese Journal of Polymer Science Vol. 35, Issue 12, Pages: 1457-1462(2017)
- Affiliations：
  
  Center for Excellence in Nanoscience(Chinese Academy of Sciences), Key Laboratory of Nanosystem and Hierarchical Fabrication(Chinese Academy of Sciences), National Center for Nanoscience and Technology, Beijing 100190, China
- Author bio：
  
  Li-ming Ding (丁黎明), E-mail:ding@nanoctr.cn
- Funds：
- DOI：10.1007/s10118-017-1996-4
  CLC：
- Published：05 December 2017，
  
  Received：03 May 2017，
  
  Revised：12 June 2017，
  
  Accepted：16 June 2017
- Accepted：
Scan QR Code
Jia-min Cao, Liu Qian, Dan He, et al. D-A Copolymers Based on a Pentacyclic Acceptor Unit and a 3, 3'-Difluoro-2, 2'-bithiophene for Solar Cells. [J]. Chinese Journal of Polymer Science, 2017,35(12):1457-1462.
DOI：

Jia-min Cao, Liu Qian, Dan He, et al. D-A Copolymers Based on a Pentacyclic Acceptor Unit and a 3, 3'-Difluoro-2, 2'-bithiophene for Solar Cells. [J]. Chinese Journal of Polymer Science, 2017,35(12):1457-1462. DOI： 10.1007/s10118-017-1996-4.

摘要

Abstract

A D-A copolymer

P2FBTTPTI

was developed by copolymerizing a pentacyclic acceptor unit

thieno[2'

3':5

6]pyrido[3

]thieno[3

]isoquinoline-5

11(4

)-dione (TPTI)

with 3

3'-difluoro-2

2'-bithiophene (2FBT). P2FBTTPTI possessed a low highest occupied molecular orbital (HOMO) energy level (-5.50 eV) and a good hole mobility (4.14×10

-4

·V

-1

·s

-1

). P2FBTTPTI:PC

BM solar cells gave a decent power conversion efficiency (PCE) of 7.64% and a high open-circuit voltage (

) of 0.95 V.

关键词

Keywords

D-A copolymersFluorinationOpen-circuit voltagePolymer solar cells

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