Recent progress in wide bandgap conjugated polymer donors for high-performance nonfullerene organic photovoltaics

2020 ◽  
Vol 56 (35) ◽  
pp. 4750-4760 ◽  
Author(s):  
Cunbin An ◽  
Zhong Zheng ◽  
Jianhui Hou
Keyword(s):  
Organic Photovoltaics ◽  
Conjugated Polymer ◽  
High Performance ◽  
Recent Progress ◽  
Wide Bandgap ◽  
Feature Article ◽  
Wide Bandgap Polymer

This feature article summarizes our recent achievements in the development of wide bandgap polymer donors as high-performance organic photovoltaics.

Design of a New Fused-Ring Electron Acceptor with Excellent Compatibility to Wide-Bandgap Polymer Donors for High-Performance Organic Photovoltaics

2018 ◽  
Vol 30 (26) ◽  
pp. 1800403 ◽  
Author(s):  
Wenrui Liu ◽  
Jianyun Zhang ◽  
Zichun Zhou ◽  
Dongyang Zhang ◽  
Yuan Zhang ◽  
...  
Keyword(s):  
Electron Acceptor ◽  
Organic Photovoltaics ◽  
High Performance ◽  
Wide Bandgap ◽  
Fused Ring ◽  
Wide Bandgap Polymer

A wide-bandgap polymer based on the alkylphenyl-substituted benzo[1,2-b:4,5-b′]dithiophene unit with high power conversion efficiency of over 11%

2018 ◽  
Vol 6 (34) ◽  
pp. 16529-16536 ◽  
Author(s):  
Xia Guo ◽  
Wanbin Li ◽  
Huan Guo ◽  
Bing Guo ◽  
Jingnan Wu ◽  
...  
Keyword(s):  
Power Conversion Efficiency ◽  
Layer Thickness ◽  
High Power ◽  
Conjugated Polymer ◽  
Power Conversion ◽  
Wide Bandgap ◽  
Active Layer Thickness ◽  
Large Area ◽  
High Power Conversion Efficiency ◽  
Wide Bandgap Polymer

A novel wide bandgap polymer PTZP with Eoptg of 2.01 eV was designed and synthesized. PSCs based on PTZP exhibited high PCE of 11.8%. PCEs of over 10% were obtained with an active layer thickness of 200 nm or an area of 0.81 cm2. PTZP was shown to be a promising conjugated polymer for the fabrication of efficient large area PSCs.

scholarly journals High-Performance Ternary Organic Solar Cells Enabled by Combining Fullerene and Nonfullerene Electron Acceptors

2019 ◽  
Vol 01 (01) ◽  
pp. 030-037 ◽  
Author(s):  
Jianyun Zhang ◽  
Wenrui Liu ◽  
Shengjie Xu ◽  
Xiaozhang Zhu
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
High Performance ◽  
Power Conversion ◽  
Wide Bandgap ◽  
The Third ◽  
Bimolecular Recombination ◽  
Conversion Efficiencies ◽  
Wide Bandgap Polymer ◽  
Nonfullerene Acceptor

Recently, by elaborately designing nonfullerene acceptors and selecting suitable polymer donors great progresses have been made towards binary organic solar cells (OSCs) with power conversion efficiencies (PCEs) over 15%. Ternary organic photovoltaics by introducing a third component into the host binary system is recognized to be highly effective to elevate the performance through extending the light absorption, manipulating the recombination behavior of the carriers, and improving the morphology of the active layer. In this work, we synthesized a new electron-acceptor ZITI-4F matching it with the wide-bandgap polymer donor PBDB-T The PBDB-T:ZITI-4F-based OSC showed a high PCE of 12.33%. After introducing 40% of PC71BM as the third component, the ternary device achieved an improved PCE of 13.40% with simultaneously improved photovoltaic parameters. The higher performance of the ternary device can be attributed to the improved and more balanced charge mobility, reduced bimolecular recombination, and more favorable morphology. These results indicate that the cooperation of a fullerene-based acceptor and a nonfullerene acceptor to fabricate ternary OSCs is an effective approach to optimizing morphology and therefore to increase the performance of OSCs.

scholarly journals Mapping Nonfullerene Acceptors with a Novel Wide Bandgap Polymer for High Performance Polymer Solar Cells

2018 ◽  
Vol 8 (24) ◽  
pp. 1801214 ◽  
Author(s):  
Xunfan Liao ◽  
Zhaoyang Yao ◽  
Ke Gao ◽  
Xueliang Shi ◽  
Lijian Zuo ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Polymer Solar Cells ◽  
Wide Bandgap ◽  
High Performance Polymer ◽  
Wide Bandgap Polymer

High-Performance Nonfullerene Polymer Solar Cells Based on a Wide-Bandgap Polymer without Extra Treatment

2018 ◽  
Vol 40 (1) ◽  
pp. 1800660 ◽  
Author(s):  
Guangda Li ◽  
Qingqing Xu ◽  
Chunmei Chang ◽  
Qunping Fan ◽  
Xiaoqian Zhu ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Polymer Solar Cells ◽  
Wide Bandgap ◽  
Wide Bandgap Polymer
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