Non-halogenated-solvent-processed highly efficient organic solar cells with a record open circuit voltage enabled by noncovalently locked novel polymer donors

2019 ◽  
Vol 7 (48) ◽  
pp. 27394-27402 ◽  
Author(s):  
Hui Guo ◽  
Youdi Zhang ◽  
Lie Chen ◽  
Xunfan Liao ◽  
Qian Xie ◽  
...  
Keyword(s):  
Solar Cells ◽  
Energy Loss ◽  
Organic Solar Cells ◽  
Open Circuit Voltage ◽  
Open Circuit ◽  
Highly Efficient ◽  
Homo Level

The difluorine and carboxylate substitutions can effectively down-shift the HOMO level of the donors, improved molecular face-on orientation and reduced energy loss.

Simultaneously increasing open-circuit voltage and short-circuit current to minimize the energy loss in organic solar cells via designing asymmetrical non-fullerene acceptor

2019 ◽  
Vol 7 (18) ◽  
pp. 11053-11061 ◽  
Author(s):  
Wei Gao ◽  
Tao Liu ◽  
Jiewei Li ◽  
Yiqun Xiao ◽  
Guangye Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Energy Loss ◽  
Organic Solar Cells ◽  
Open Circuit Voltage ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Open Circuit

Asymmetrical a-BTTIC simultaneously increases the open-circuit voltage and short-circuit current, and boosts the efficiency of OSCs with energy loss lower than 0.6 eV.

Solution-processed small molecules with ethynylene bridges for highly efficient organic solar cells

2016 ◽  
Vol 4 (38) ◽  
pp. 14720-14728 ◽  
Author(s):  
Yuanyuan Kan ◽  
Chang Liu ◽  
Lianjie Zhang ◽  
Ke Gao ◽  
Feng Liu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecules ◽  
Organic Solar Cells ◽  
Open Circuit Voltage ◽  
Open Circuit ◽  
Conjugated Molecules ◽  
Solution Processed ◽  
Highly Efficient

Inserting ethynylene bridges in conjugated molecules can enhance high open-circuit voltage and fill factors to improve photovoltaic performances in organic solar cells.

scholarly journals A potential naphtho[2,1-b:3,4-b′]dithiophene-based polymer with large open circuit voltage for efficient use in organic solar cells

2015 ◽  
Vol 3 (9) ◽  
pp. 1904-1912 ◽  
Author(s):  
Yu Jin Kim ◽  
Ye Rim Cheon ◽  
Jae-Wan Jang ◽  
Yun-Hi Kim ◽  
Chan Eon Park
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Open Circuit Voltage ◽  
Open Circuit ◽  
Homo Level

We designed a new copolymer, PNDT-BTN with NDT and alkoxy-naphthalene units. PNDT-BDT showed an effectively lowered HOMO level by inducing non-planarity, resulting in enhanced VOC.

Reducing non-radiative recombination energy loss via a fluorescence intensifier for efficient and stable ternary organic solar cells

2021 ◽  
Author(s):  
Xuan Liu ◽  
Yang Liu ◽  
Yongfeng Ni ◽  
Ping Fu ◽  
Xuchao Wang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Energy Loss ◽  
Quantum Efficiency ◽  
Organic Solar Cells ◽  
Radiative Recombination ◽  
Open Circuit Voltage ◽  
Open Circuit ◽  
Effective Strategy ◽  
Recombination Energy ◽  
Photoactive Layer

Increasing electroluminescene quantum efficiency (EQEEL) of photoactive layer to reduce non-radiative recombination energy loss (Eloss) has been demonstrated an effective strategy to improve open-circuit voltage (Voc) of organic solar cells...

scholarly journals A minimal non-radiative recombination loss for efficient non-fullerene all-small-molecule organic solar cells with a low energy loss of 0.54 eV and high open-circuit voltage of 1.15 V

2018 ◽  
Vol 6 (28) ◽  
pp. 13918-13924 ◽  
Author(s):  
Daobin Yang ◽  
Yuming Wang ◽  
Takeshi Sano ◽  
Feng Gao ◽  
Hisahiro Sasabe ◽  
...  
Keyword(s):  
Solar Cells ◽  
Energy Loss ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Radiative Recombination ◽  
Open Circuit Voltage ◽  
Open Circuit ◽  
Low Energy ◽  
Recombination Energy ◽  
Recombination Loss

A minimal non-radiative recombination energy loss of 0.21 eV is achieved for non-fullerene all-small-molecule organic solar cells.

Design of single-porphyrin donors toward high open-circuit voltage for organic solar cells via an energy level gradient-distribution screening strategy of fragments: a theoretical study

2020 ◽  
Vol 22 (7) ◽  
pp. 4015-4022 ◽  
Author(s):  
Li-Na Wu ◽  
Ming-Yue Sui ◽  
Song Xiao ◽  
Yu-Zhong Xie ◽  
Guang-Yan Sun
Keyword(s):  
Solar Cells ◽  
Energy Level ◽  
Organic Solar Cells ◽  
Open Circuit Voltage ◽  
Theoretical Study ◽  
Screening Strategy ◽  
Open Circuit ◽  
Gradient Distribution ◽  
Homo Level

The energy level gradient-distribution screening strategy of fragments is an effective way to reduce the HOMO level and increase VOC.

scholarly journals Correction: Non-halogenated-solvent-processed highly efficient organic solar cells with a record open circuit voltage enabled by noncovalently locked novel polymer donors

2020 ◽  
Vol 8 (5) ◽  
pp. 2851-2851
Author(s):  
Hui Guo ◽  
Youdi Zhang ◽  
Lie Chen ◽  
Xunfan Liao ◽  
Qian Xie ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Open Circuit Voltage ◽  
Open Circuit ◽  
Highly Efficient

Correction for ‘Non-halogenated-solvent-processed highly efficient organic solar cells with a record open circuit voltage enabled by noncovalently locked novel polymer donors’ by Hui Guo et al., J. Mater. Chem. A, 2019, 7, 27394–27402.

scholarly journals Quantifying Quasi‐Fermi Level Splitting and Open‐Circuit Voltage Losses in Highly Efficient Nonfullerene Organic Solar Cells

Solar RRL ◽  
2020 ◽  
pp. 2000649
Author(s):  
Le Quang Phuong ◽  
Seyed Mehrdad Hosseini ◽  
Oskar J. Sandberg ◽  
Yingping Zou ◽  
Han Young Woo ◽  
...  
Keyword(s):  
Solar Cells ◽  
Fermi Level ◽  
Organic Solar Cells ◽  
Open Circuit Voltage ◽  
Open Circuit ◽  
Highly Efficient ◽  
Quasi Fermi Level ◽  
Level Splitting
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