Over 14% efficiency nonfullerene all-small-molecule organic solar cells enabled by improving the ordering of molecular donors via side-chain engineering

2020 ◽  
Vol 8 (15) ◽  
pp. 7405-7411 ◽  
Author(s):  
Jing Gao ◽  
Jinfeng Ge ◽  
Ruixiang Peng ◽  
Chang Liu ◽  
Liang Cao ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Current Density ◽  
Organic Solar Cells ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Short Circuit Current Density ◽  
Side Chain ◽  
Highly Efficient

Improving the short-circuit current density (Jsc) is a big challenge for gaining highly efficient nonfullerene all-small-molecule organic solar cells (NFASM-OSCs).

An asymmetric small molecule acceptor for organic solar cells with a short circuit current density over 24 mA cm−2

2020 ◽  
Vol 8 (31) ◽  
pp. 15984-15991 ◽  
Author(s):  
Fangfang Cai ◽  
Hongjian Peng ◽  
Honggang Chen ◽  
Jun Yuan ◽  
Jiefeng Hai ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Current Density ◽  
Organic Solar Cells ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Short Circuit Current Density

Acceptor Y22 with an asymmetric hexacyclic A–DA′D–A structure achieved a high PCE of 15.4% and a high Jsc of 24.37 mA cm−2, which are among the best values reported for asymmetric acceptor based binary organic solar cells.

Introducing methoxy or fluorine on the conjugated side chain to reduce the voltage loss of organic solar cells

2021 ◽  
Author(s):  
You Chen ◽  
Chuanxiu Jiang ◽  
Jiacheng Wang ◽  
Ailing Tang ◽  
Bao Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Current Density ◽  
Organic Solar Cells ◽  
High Efficiency ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Short Circuit Current Density ◽  
Side Chain ◽  
Vital Importance ◽  
Voltage Loss

Developing effective method to decrease the voltage loss (Vloss) and increase the short-circuit current density (JSC) simultaneously is of vital importance to realize high-efficiency organic photovoltaics (OPV). Herein, we adopted...

Narrow bandgap non-fullerene acceptor based on a thiophene-fused benzothiadiazole unit with a high short-circuit current density of over 20 mA cm−2

2018 ◽  
Vol 6 (15) ◽  
pp. 6393-6401 ◽  
Author(s):  
Han Xu ◽  
Yang Yang ◽  
Cheng Zhong ◽  
Xiaowei Zhan ◽  
Xingguo Chen
Keyword(s):  
Solar Cells ◽  
Current Density ◽  
Organic Solar Cells ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Short Circuit Current Density ◽  
Narrow Bandgap

Organic solar cells based on a new non-fullerene acceptor containing a thiophene-fused benzothiadiazole unit and a polymer donor PTB7-Th showed a PCE of 9.07% with a high Jsc of over 20.33 mA cm−2.

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