A thieno[3,4-b]pyrazine-based A2–A1–D–A1–A2 type low bandgap non-fullerene acceptor with 1,1-dicyanomethylene-3-indanone (IC) as the terminal group

2019 ◽  
Vol 7 (29) ◽  
pp. 8820-8824 ◽  
Author(s):  
Jianfeng Li ◽  
You Chen ◽  
Xiaochen Wang ◽  
Feng Li ◽  
Ailing Tang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Significant Role ◽  
Organic Solar Cells ◽  
Power Conversion ◽  
Terminal Group ◽  
Low Bandgap ◽  
Conversion Efficiencies

As the most successful end-capped unit in conventional A–D–A type non-fullerene acceptors (NFAs), 1,1-dicyanomethylene-3-indanone (IC) plays a significant role in enhancing the power conversion efficiencies (PCEs) of organic solar cells (OSCs).

High-performance ternary organic solar cells with photoresponses beyond 1000 nm

2018 ◽  
Vol 6 (47) ◽  
pp. 24210-24215 ◽  
Author(s):  
Peiyao Xue ◽  
Yiqun Xiao ◽  
Tengfei Li ◽  
Shuixing Dai ◽  
Boyu Jia ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
High Performance ◽  
Power Conversion ◽  
Low Bandgap ◽  
Conversion Efficiencies

Panchromatic ternary organic solar cells with photoresponses beyond 1000 nm and power conversion efficiencies as high as 12.1% were fabricated using low-bandgap polymer PTB7-Th as a donor and ultra low-bandgap F8IC and mid-bandgap IDT-2BR as nonfullerene acceptors.

Nonfullerene acceptors for P3HT-based organic solar cells

2021 ◽  
Author(s):  
Shreyam Chatterjee ◽  
Seihou JINNAI ◽  
Yutaka Ie
Keyword(s):  
Solar Cells ◽  
High Power ◽  
Organic Solar Cells ◽  
Power Conversion ◽  
Conversion Efficiencies

Progressive advancement of remarkably high power conversion efficiencies (PCEs) of organic solar cells (OSCs) largely depends on the development of norfullerene acceptors (NFAs), revealing stupendous ability of OSCs to shift...

Recent advances, challenges and prospects in ternary organic solar cells

Nanoscale ◽  
2021 ◽  
Author(s):  
Congcong Zhao ◽  
Jiuxing Wang ◽  
Xuanyi Zhao ◽  
Zhonglin Du ◽  
Renqiang Yang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
High Performance ◽  
Power Conversion ◽  
The Past ◽  
Recent Advances ◽  
Conversion Efficiencies

The past decade has seen a tremendous development of organic solar cells (OSCs). To date, the high-performance OSCs have boosted the power conversion efficiencies (PCEs) over 17%, showing bright prospects...

Copolymers based on trialkylsilylethynyl-phenyl substituted benzodithiophene building block for efficient organic solar cells

2021 ◽  
Author(s):  
Haifen Liu ◽  
Zixuan Zhu ◽  
Huafeng Li ◽  
Weili Fan ◽  
Kaihua Ning ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Building Block ◽  
Power Conversion ◽  
Molecular Structures ◽  
The Past ◽  
Conversion Efficiencies

Non-fullerene acceptors have received a great deal of attention over the past several years, and numerous modifications on the molecular structures significantly boosted the power conversion efficiencies (PCEs). To be...

Incorporating Semiflexible Linkers into Double-Cable Conjugated Polymers via Click Reaction

2021 ◽  
Author(s):  
Zhaofan Yang ◽  
Shijie Liang ◽  
Baiqiao Liu ◽  
Jing Wang ◽  
Fan Yang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Conjugated Polymers ◽  
Organic Solar Cells ◽  
Click Reaction ◽  
Bulk Heterojunction ◽  
Power Conversion ◽  
Single Component ◽  
Photovoltaic Technology ◽  
Conversion Efficiencies ◽  
Excellent Stability

Single-component organic solar cells (SCOSCs) have been recognized as the promising photovoltaic technology due to the excellent stability, but their power conversion efficiencies (PCEs) are far lagging their bulk-heterojunction counterparts....

Ternary organic solar cells: using molecular donor or acceptor third components to increase open circuit voltage

2019 ◽  
Vol 43 (26) ◽  
pp. 10442-10448 ◽  
Author(s):  
Sergey V. Dayneko ◽  
Arthur D. Hendsbee ◽  
Jonathan R. Cann ◽  
Clément Cabanetos ◽  
Gregory C. Welch
Keyword(s):  
Solar Cells ◽  
Organic Photovoltaics ◽  
Organic Solar Cells ◽  
Open Circuit Voltage ◽  
Power Conversion ◽  
Open Circuit ◽  
Molecular Semiconductors ◽  
Conversion Efficiencies ◽  
Open Circuit Voltages

The addition of donor or acceptor type molecular semiconductors to PBDB-T:PC60BM based organic photovoltaics leads to increases in open circuit-voltages and overall power conversion efficiencies.

scholarly journals High-Performance Ternary Organic Solar Cells Enabled by Combining Fullerene and Nonfullerene Electron Acceptors

2019 ◽  
Vol 01 (01) ◽  
pp. 030-037 ◽  
Author(s):  
Jianyun Zhang ◽  
Wenrui Liu ◽  
Shengjie Xu ◽  
Xiaozhang Zhu
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
High Performance ◽  
Power Conversion ◽  
Wide Bandgap ◽  
The Third ◽  
Bimolecular Recombination ◽  
Conversion Efficiencies ◽  
Wide Bandgap Polymer ◽  
Nonfullerene Acceptor

Recently, by elaborately designing nonfullerene acceptors and selecting suitable polymer donors great progresses have been made towards binary organic solar cells (OSCs) with power conversion efficiencies (PCEs) over 15%. Ternary organic photovoltaics by introducing a third component into the host binary system is recognized to be highly effective to elevate the performance through extending the light absorption, manipulating the recombination behavior of the carriers, and improving the morphology of the active layer. In this work, we synthesized a new electron-acceptor ZITI-4F matching it with the wide-bandgap polymer donor PBDB-T The PBDB-T:ZITI-4F-based OSC showed a high PCE of 12.33%. After introducing 40% of PC71BM as the third component, the ternary device achieved an improved PCE of 13.40% with simultaneously improved photovoltaic parameters. The higher performance of the ternary device can be attributed to the improved and more balanced charge mobility, reduced bimolecular recombination, and more favorable morphology. These results indicate that the cooperation of a fullerene-based acceptor and a nonfullerene acceptor to fabricate ternary OSCs is an effective approach to optimizing morphology and therefore to increase the performance of OSCs.

Recent progress in non-fullerene small molecule acceptors in organic solar cells (OSCs)

2017 ◽  
Vol 5 (6) ◽  
pp. 1275-1302 ◽  
Author(s):  
Wangqiao Chen ◽  
Qichun Zhang
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Recent Progress ◽  
Power Conversion ◽  
Conversion Efficiencies

The power conversion efficiencies (PCEs) of non-fullerene small molecule acceptors based on different donors have been compared and summarized.

scholarly journals Efficient Inverted ITO-Free Organic Solar Cells Based on Transparent Silver Electrode with Aqueous Solution-Processed ZnO Interlayer

2017 ◽  
Vol 2017 ◽  
pp. 1-6
Author(s):  
Zhizhe Wang ◽  
Dazheng Chen ◽  
Chunfu Zhang ◽  
Zhenhua Lin ◽  
Yan Liu ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Solar Cells ◽  
Tin Oxide ◽  
Organic Solar Cells ◽  
Indium Tin Oxide ◽  
Power Conversion ◽  
Mean Square ◽  
Low Bandgap ◽  
Lower Root ◽  
Electron Extraction

Efficient inverted organic solar cells (OSCs) with the MoO3(2 nm)/Ag (12 nm) transparent cathode and an aqueous solution ZnO electron extraction layer processed at low temperature are investigated in this work. The blend of low bandgap poly[[4,8-bis[(2-ethylhexyl)oxy]benzo[1,2-b:4,5-b′]dithiophene-2,6-diyl][3-fluoro-2-[(2-ethylhexyl)carbonyl]thieno[3,4-b]thiophenediyl]] (PTB7) and [6,6]-phenyl-C71-butyric acid methylester (PC71BM) is employed as the photoactive layer here. A power conversion efficiency (PCE) of 5.55% is achieved for such indium tin oxide- (ITO-) free OSCs under AM 1.5G simulated illumination, comparable to that of ITO-based reference OSCs (PCE of 6.11%). It is found that this ZnO interlayer not only slightly enhances the transparency of MoO3/Ag cathode but also obtains a lower root-mean-square (RMS) roughness on the MoO3/Ag surface. Meanwhile, ITO-free OSCs also show a good stability. The PCE of the devices still remains above 85% of the original values after 30 days, which is slightly superior to ITO-based reference OSCs where the 16% degradation in PCE is observed after 30 days. It may be instructive for further research of OSCs based on metal thin film electrodes.

scholarly journals Quaternary Organic Solar Cells Enhanced by Cocrystalline Squaraines with Power Conversion Efficiencies >10%

2016 ◽  
Vol 6 (21) ◽  
pp. 1600660 ◽  
Author(s):  
Tenghooi Goh ◽  
Jing-Shun Huang ◽  
Kevin G. Yager ◽  
Matthew Y. Sfeir ◽  
Chang-Yong Nam ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Power Conversion ◽  
Conversion Efficiencies
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