Revealing the role of solvent additives on morphology and energy loss in benzodifuran polymer based non-fullerene organic solar cells

2021 ◽  
Author(s):  
Zhi Zheng ◽  
Enfang He ◽  
Jie Wang ◽  
Zhaotong Qin ◽  
Tianqi Niu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Energy Loss ◽  
Organic Solar Cells ◽  
Opposite Effect ◽  
Effective Strategy ◽  
Highly Efficient ◽  
Solvent Additive ◽  
Role Of Solvent

Solvent additive (SA) treatment is the most effective strategy to obtain highly efficient non-fullerene organic solar cells (NF-OSCs). However, NF-OSCs with SA treatment usually exhibits different or even opposite effect...

Benzo[1,2-b:4,5-b′]diselenophene-fused nonfullerene acceptors with alternative aromatic ring-based and monochlorinated end groups: a new synergistic strategy to simultaneously achieve highly efficient organic solar cells with the energy loss of 0.49 eV

2019 ◽  
Vol 7 (19) ◽  
pp. 11802-11813 ◽  
Author(s):  
Shi-Sheng Wan ◽  
Xiaopeng Xu ◽  
Jin-Liang Wang ◽  
Gui-Zhou Yuan ◽  
Zhao Jiang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Energy Loss ◽  
Aromatic Ring ◽  
Organic Solar Cells ◽  
Highly Efficient ◽  
End Groups

The PCE of 13.68% with the Eloss of 0.49 eV were obtained, which were the highest values obtained to date in binary PSCs with monochlorinated NF-SMAs.

Highly efficient halogen-free solvent processed small-molecule organic solar cells enabled by material design and device engineering

2017 ◽  
Vol 10 (8) ◽  
pp. 1739-1745 ◽  
Author(s):  
Jiahui Wan ◽  
Xiaopeng Xu ◽  
Guangjun Zhang ◽  
Ying Li ◽  
Kui Feng ◽  
...  
Keyword(s):  
Solar Cells ◽  
Energy Loss ◽  
Small Molecules ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Material Design ◽  
Small Energy ◽  
Highly Efficient ◽  
Device Engineering ◽  
Halogen Free

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.

The Role of Solvent Additive Processing in High Performance Small Molecule Solar Cells

2014 ◽  
Vol 26 (22) ◽  
pp. 6531-6541 ◽  
Author(s):  
Louis A. Perez ◽  
James T. Rogers ◽  
Michael A. Brady ◽  
Yanming Sun ◽  
Gregory C. Welch ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
High Performance ◽  
Solvent Additive ◽  
Role Of Solvent

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...

Highly Efficient Binary Solvent Additive‐Processed Organic Solar Cells by the Blade‐Coating Method

2021 ◽  
pp. 2100062
Author(s):  
Wan‐Zhen Fo ◽  
Gui Ying Xu ◽  
Hao‐Jie Dong ◽  
Lin‐Na Liu ◽  
Yao Wen Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Binary Solvent ◽  
Highly Efficient ◽  
Coating Method ◽  
Solvent Additive ◽  
Blade Coating

scholarly journals Effects of solvent additive on “s-shaped” curves in solution-processed small molecule solar cells

2016 ◽  
Vol 12 ◽  
pp. 2543-2555 ◽  
Author(s):  
John A Love ◽  
Shu-Hua Chou ◽  
Ye Huang ◽  
Guilllermo C Bazan ◽  
Thuc-Quyen Nguyen
Keyword(s):  
Solar Cells ◽  
Bulk Heterojunction ◽  
Energy Levels ◽  
Curve Shape ◽  
Broad Absorption ◽  
Current Voltage ◽  
Solvent Additive ◽  
The Common ◽  
Role Of Solvent

A novel molecular chromophore, p-SIDT(FBTThCA8)2, is introduced as an electron-donor material for bulk heterojunction (BHJ) solar cells with broad absorption and near ideal energy levels for the use in combination with common acceptor materials. It is found that films cast from chlorobenzene yield devices with strongly s-shaped current–voltage curves, drastically limiting performance. We find that addition of the common solvent additive diiodooctane, in addition to facilitating crystallization, leads to improved vertical phase separation. This yields much better performing devices, with improved curve shape, demonstrating the importance of morphology control in BHJ devices and improving the understanding of the role of solvent additives.

The critical role of additives in binary halogen-free solvent systems for the general processing of highly efficient organic solar cells

RSC Advances ◽  
2015 ◽  
Vol 5 (114) ◽  
pp. 93689-93696 ◽  
Author(s):  
Kai Yao ◽  
Yun-Xiang Xu ◽  
Xiaofeng Wang ◽  
Fan Li ◽  
Jiren Yuan
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Large Scale ◽  
Critical Role ◽  
Environmental Issues ◽  
Highly Efficient ◽  
Solvent Systems ◽  
Halogen Free

Our work demonstrated that the use of the additive strategy for halogen-free solvent systems may provide a feasible route to address the critical environmental issues associated with large-scale manufacturing.

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.

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