Improved performances of PCDTBT:PC71BM BHJ solar cells through incorporating small molecule donor

2015 ◽  
Vol 17 (40) ◽  
pp. 26777-26782 ◽  
Author(s):  
Youqin Zhu ◽  
Lin Yang ◽  
Suling Zhao ◽  
Yan Huang ◽  
Zheng Xu ◽  
...  

Incorporating SQ-BP into a PCDTBT:PC71BM host blend not only broadens the absorption spectrum but also decreases the energy loss of excited PCDTBT.

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 10 (8) ◽  
pp. 1739-1745 ◽  
Author(s):  
Jiahui Wan ◽  
Xiaopeng Xu ◽  
Guangjun Zhang ◽  
Ying Li ◽  
Kui Feng ◽  
...  

Naphtho[1,2-c:5,6-c']bis[1,2,5]thiadiazole-based small molecules have been synthesized for organic solar cells. The optimized devices processed by a halogen-free solvent of CS2 exhibited a PCE of 11.53% with a small energy loss of 0.57 eV.


2020 ◽  
Vol 13 (5) ◽  
pp. 1309-1317 ◽  
Author(s):  
Yulong Wang ◽  
Yang Wang ◽  
Lei Zhu ◽  
Haiqin Liu ◽  
Jin Fang ◽  
...  

A novel small molecule donor based on thiazolo[5,4-d]thiazole (TTz) unit is developed for OSCs application with 13.9% power conversion efficiency and a small non-radiative energy loss of 0.18 eV.


2020 ◽  
Vol 4 (12) ◽  
pp. 6203-6211
Author(s):  
Yu Chen ◽  
Rui Cao ◽  
Hui Liu ◽  
M. L. Keshtov ◽  
Emmanuel N. Koukaras ◽  
...  

In order to increase the power conversion efficiency (PCE) of organic solar cells, developing high-performance non-fullerene small molecule acceptors is important for efficient charge generation and small energy loss.


Author(s):  
Ziyun Huang ◽  
Yanan Shi ◽  
Yilin Chang ◽  
Chen Yang ◽  
Min Lv ◽  
...  

Despite the remarkable progress achieved in the field of non-fullerene acceptor (NFA)-based organic photovoltaics (OPVs) in recent years, the large energy loss remains the major factor limiting the power conversion...


2021 ◽  
pp. 2109735
Author(s):  
Hao Ren ◽  
Yunlong Ma ◽  
Hui‐Min Liu ◽  
Jing‐De Chen ◽  
Ye‐Fan Zhang ◽  
...  

2019 ◽  
Vol 7 (25) ◽  
pp. 15404-15410 ◽  
Author(s):  
Qunping Fan ◽  
Tao Liu ◽  
Wei Gao ◽  
Yiqun Xiao ◽  
Jingnan Wu ◽  
...  

PSCs based on polymer donors (PM6 and PM7) and an asymmetrical small molecule acceptor (IDT6CN-M) were developed and achieved a high PCE of 13.3% with a high Voc of over 1.0 V.


2018 ◽  
Vol 54 (3) ◽  
pp. 303-306 ◽  
Author(s):  
Junhui Miao ◽  
Bin Meng ◽  
Jun Liu ◽  
Lixiang Wang

The use of an A–D–A′–D–A strategy to develop small molecule acceptors with broad absorption spectra through suppressing the intramolecular charge transfer effect is studied.


2018 ◽  
Vol 57 ◽  
pp. 45-52 ◽  
Author(s):  
Jian Wang ◽  
Wengong Wang ◽  
Xinning Dong ◽  
Guo Wang ◽  
Zhi-Guo Zhang ◽  
...  

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