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...

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.

scholarly journals Влияние толщины базы на эффективность фотопреобразования текстурированных солнечных элементов на основе кремния

2018 ◽  
Vol 44 (19) ◽  
pp. 40
Author(s):  
А.В. Саченко ◽  
В.П. Костылев ◽  
А.В. Бобыль ◽  
В.Н. Власюк ◽  
И.О. Соколовский ◽  
...  
Keyword(s):  
Solar Cells ◽  
Current Density ◽  
High Efficiency ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Short Circuit Current Density ◽  
Photoconversion Efficiency ◽  
Base Thickness ◽  
High Efficiency Solar Cells ◽  
Complete Optimization

AbstractA theory is developed, which describes the experimental external quantum efficiency, EQE (λ) as a function of photon wavelength for structured Si-based solar cells. Short-circuit current density as a function of base thickness, d , is calculated for the high-efficiency solar cells with the photoconversion efficiency η ≥ 25% The procedure allows one to carry out a complete optimization of such solar cells, in particular, to find the optimal base thickness, d _opt.

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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