Poly(benzodithiophene) Homopolymer for High-Performance Polymer Solar Cells with Open-Circuit Voltage of Near 1 V: A Superior Candidate To Substitute for Poly(3-hexylthiophene) as Wide Bandgap Polymer

2015 ◽  
Vol 27 (7) ◽  
pp. 2653-2658 ◽  
Author(s):  
Tae Eui Kang ◽  
Taesu Kim ◽  
Cheng Wang ◽  
Seunghyup Yoo ◽  
Bumjoon J. Kim
2017 ◽  
Vol 5 (42) ◽  
pp. 22180-22185 ◽  
Author(s):  
Yan Wang ◽  
Qunping Fan ◽  
Xia Guo ◽  
Wanbin Li ◽  
Bing Guo ◽  
...  

Nonfullerene polymer solar cells based on a polymer donor PM6 containing a fluorinated-thienyl benzodithiophene unit and a small molecule acceptor ITIC showed a PCE of 9.7% with a Voc of up to 1.04 V and an energy loss as low as 0.51 eV.


2017 ◽  
Vol 41 (21) ◽  
pp. 13166-13174 ◽  
Author(s):  
Yang Miao ◽  
Tong Yang ◽  
Zong Cheng ◽  
Yuewei Zhang ◽  
Jingying Zhang ◽  
...  

Two water/alcohol-soluble small molecular cathode interlayers (CILs) were synthesized and employed to fabricate high performance polymer solar cells (PSCs) with a large open-circuit voltage (Voc) of 0.93 V.


2018 ◽  
Vol 8 (24) ◽  
pp. 1801214 ◽  
Author(s):  
Xunfan Liao ◽  
Zhaoyang Yao ◽  
Ke Gao ◽  
Xueliang Shi ◽  
Lijian Zuo ◽  
...  

2015 ◽  
Vol 3 (41) ◽  
pp. 20516-20526 ◽  
Author(s):  
Minghui Hao ◽  
Guoping Luo ◽  
Keli Shi ◽  
Guohua Xie ◽  
Kailong Wu ◽  
...  

Wide bandgap polymers based on DTPO were designed for high performance OFETs and PSCs.


Nanophotonics ◽  
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Rui He ◽  
Tingting Chen ◽  
Zhipeng Xuan ◽  
Tianzhen Guo ◽  
Jincheng Luo ◽  
...  

Abstract Wide-bandgap (wide-E g , ∼1.7 eV or higher) perovskite solar cells (PSCs) have attracted extensive attention due to the great potential of fabricating high-performance perovskite-based tandem solar cells via combining with low-bandgap absorbers, which is considered promising to exceed the Shockley–Queisser efficiency limit. However, inverted wide-E g PSCs with a minimized open-circuit voltage (V oc) loss, which are more suitable to prepare all-perovskite tandem devices, are still lacking study. Here, we report a strategy of adding 1,3,5-tris (bromomethyl) benzene (TBB) into wide-E g perovskite absorber to passivate the perovskite film, leading to an enhanced average V oc. Incorporation of TBB prolongs carrier lifetimes in wide-E g perovskite due to reduction of defects in perovskites and makes a better energy level matching between perovskite absorber and electron transport layer. As a result, we achieve the power conversion efficiency of 17.12% for our inverted TBB-doped PSC with an enhanced V oc of 1.19 V, compared with that (16.14%) for the control one (1.14 V).


2020 ◽  
Vol 8 (19) ◽  
pp. 6513-6520 ◽  
Author(s):  
Xingliang Dong ◽  
Qing Guo ◽  
Qi Liu ◽  
Lei Zhu ◽  
Xia Guo ◽  
...  

A new non-fullerene acceptor named NTO-4F is developed. The optimal PSC based on PM6:NTO-4F achieves a PCE of 11.5% with simultaneously high open-circuit voltage of 0.99 V and short-circuit current density of 19.1 mA cm−2.


2016 ◽  
Vol 4 (48) ◽  
pp. 18792-18803 ◽  
Author(s):  
Qiang Tao ◽  
Tao Liu ◽  
Linrui Duan ◽  
Yufeng Cai ◽  
Wenjing Xiong ◽  
...  

A novel vertical carboxylate functionalized benzodithiophene unit was designed as an election-accepting block to build D–A type copolymers, and a high Voc of 1.03 V and a significant PCE of 7.49% were achieved.


2018 ◽  
Vol 40 (1) ◽  
pp. 1800660 ◽  
Author(s):  
Guangda Li ◽  
Qingqing Xu ◽  
Chunmei Chang ◽  
Qunping Fan ◽  
Xiaoqian Zhu ◽  
...  

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