Nonfused Ring Electron Acceptors with a Small Side-Chain Difference Lead to Vastly Different Power Conversion Efficiencies: Impact of Aggregation

2021 ◽  
Author(s):  
Johar Zeb ◽  
Guangliu Ran ◽  
Xiaodong Wang ◽  
Hao Lu ◽  
Yahui Liu ◽  
...  
Keyword(s):  
Power Conversion ◽  
Electron Acceptors ◽  
Side Chain ◽  
Conversion Efficiencies ◽  
Small Side

Conjugated polymer acceptors based on fused perylene bisimides with a twisted backbone for non-fullerene solar cells

2017 ◽  
Vol 8 (21) ◽  
pp. 3300-3306 ◽  
Author(s):  
Xudong Jiang ◽  
Yunhua Xu ◽  
Xiaohui Wang ◽  
Fan Yang ◽  
Andong Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Power ◽  
Conjugated Polymer ◽  
Power Conversion ◽  
Electron Acceptors ◽  
High Electron ◽  
High Electron Mobility ◽  
Perylene Bisimide ◽  
Perylene Bisimides ◽  
Conversion Efficiencies

Electron acceptors based on fused perylene bisimide dimers with a twisted backbone were developed to show high electron mobility and isotropic crystalline properties, resulting in high power conversion efficiencies in non-fullerene solar cells.

scholarly journals Alkyl Side-Chain Engineering in Wide-Bandgap Copolymers Leading to Power Conversion Efficiencies over 10%

2016 ◽  
Vol 29 (6) ◽  
pp. 1604251 ◽  
Author(s):  
Tao Liu ◽  
Xuexue Pan ◽  
Xiangyi Meng ◽  
Yu Liu ◽  
Donghui Wei ◽  
...  
Keyword(s):  
Power Conversion ◽  
Wide Bandgap ◽  
Side Chain ◽  
Alkyl Side Chain ◽  
Conversion Efficiencies

Green Solvent-Processed, High-Performance Organic Solar Cells Achieved by Outer Side-Chain Selection of Selenophene-Incorporated Y-Series Acceptors

2021 ◽  
Author(s):  
Changkyun Kim ◽  
Shuhao Chen ◽  
Jin Su Park ◽  
Geon-U Kim ◽  
Hyunbum Kang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
High Performance ◽  
Power Conversion ◽  
Side Chain ◽  
Outer Side ◽  
Green Solvent ◽  
Conversion Efficiencies ◽  
Selection Of

While the power conversion efficiencies (PCEs) of organic solar cells (OSCs) have been dramatically increased through the development of small molecular acceptors (SMAs), achieving eco-friendly solution processability of OSCs is...

Siloxane-Terminated Side Chain Engineering of Acceptor Polymers Leading to Over 7% Power Conversion Efficiencies in All-Polymer Solar Cells

2017 ◽  
Vol 6 (11) ◽  
pp. 1310-1314 ◽  
Author(s):  
Shizhen Feng ◽  
Chang Liu ◽  
Xiaofeng Xu ◽  
Xuncheng Liu ◽  
Lianjie Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Polymer Solar Cells ◽  
Power Conversion ◽  
Side Chain ◽  
Conversion Efficiencies

Importance of molecular rigidity on reducing the energy losses in organic solar cells: Implication from geometric relaxations of A-D-A electron acceptors

2021 ◽  
Author(s):  
Ruihong Duan ◽  
Guangchao Han ◽  
Lingbo Qu ◽  
Yuanping Yi
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Power Conversion ◽  
Electron Acceptors ◽  
Energy Losses ◽  
Donor Acceptor ◽  
Molecular Rigidity ◽  
Conversion Efficiencies

Owing to the emergence of small-molecule acceptors with acceptor-donor-acceptor (A-D-A) structures, organic solar cells (OSCs) have developed rapidly in recent years. Currently, the power conversion efficiencies (PCEs) of the OSCs...

Nonfullerene Electron Acceptors with Electron-deficient Units Containing Cyano Groups for Organic Solar Cells

2021 ◽  
Author(s):  
Bing Lu ◽  
Zhecheng Zhang ◽  
Jian Wang ◽  
Guilong Cai ◽  
Yue Ding ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Power Conversion ◽  
Electron Acceptors ◽  
Single Junction ◽  
Cyano Groups ◽  
Conversion Efficiencies

The performance of organic solar cells based on nonfullerene acceptors is improving rapidly, and nowadays the power conversion efficiencies of single-junction devices have achieved over 18%. Nonfullerene acceptors usually consist...

Fused octacyclic electron acceptor isomers for organic solar cells

2019 ◽  
Vol 7 (37) ◽  
pp. 21432-21437 ◽  
Author(s):  
Guilong Cai ◽  
Jingshuai Zhu ◽  
Yiqun Xiao ◽  
Mengyang Li ◽  
Kuan Liu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Electron Acceptor ◽  
Organic Solar Cells ◽  
Power Conversion ◽  
Electron Acceptors ◽  
Fused Ring ◽  
Conversion Efficiencies

We synthesize 2 new isomeric fused-ring electron acceptors BTIC and NTIC. BTIC and NTIC-based organic solar cells show power conversion efficiencies of 11.5–12.2%.

scholarly journals Dimeric Phenazinothiadiazole Acceptors in Bulk Heterojunction Solar Cells

2021 ◽  
Vol 03 (02) ◽  
pp. 168-173
Author(s):  
Lukas Ahrens ◽  
Yvonne J. Hofstetter ◽  
Baris Celik ◽  
Julian F. Butscher ◽  
Frank Rominger ◽  
...  
Keyword(s):  
Thin Films ◽  
Solar Cells ◽  
Bulk Heterojunction ◽  
Power Conversion ◽  
Electron Acceptors ◽  
Device Performance ◽  
Heterojunction Solar Cells ◽  
Bulk Heterojunction Solar Cells ◽  
Covalently Linked ◽  
Conversion Efficiencies

Two covalently linked triisopropylsilyl-ethynylated phenazinothiadiazoles were prepared through condensation of a spirocyclic and a bicyclic tetraketone with a 5,6-diaminobenzothiadiazole. The spirobisindene- and the ethanoanthracene-based linkers render the electron acceptors amorphous in thin films. The optoelectronic properties of the non-conjugated dimers are indistinguishable from that of the crystalline monomer. Bulk heterojunction solar cells were prepared with power conversion efficiencies peaking at 1.6%. The choice of linker neither influenced optical and electrochemical properties nor device performance.

A privileged ternary blend enabling non-fullerene organic photovoltaics with over 14% efficiency

2020 ◽  
Vol 8 (43) ◽  
pp. 15135-15141
Author(s):  
Jing Yan ◽  
Yuan-Qiu-Qiang Yi ◽  
Jianqi Zhang ◽  
Huanran Feng ◽  
Yanfeng Ma ◽  
...  
Keyword(s):  
Small Molecule ◽  
Organic Photovoltaics ◽  
Power Conversion ◽  
Ternary Blend ◽  
Conversion Efficiencies

Two non-fullerene small molecule acceptors, NT-4F and NT-4Cl, were designed and synthesized. Power conversion efficiencies of 11.44% and 14.55% were achieved for NT-4Cl-based binary and ternary devices, respectively.

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