Enhanced intramolecular charge transfer of unfused electron acceptors for efficient organic solar cells

2019 ◽  
Vol 3 (3) ◽  
pp. 513-519 ◽  
Author(s):  
Ran Qin ◽  
Weitao Yang ◽  
Shuixing Li ◽  
Tsz-Ki Lau ◽  
Zhipeng Yu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Charge Transfer ◽  
Organic Solar Cells ◽  
Intramolecular Charge Transfer ◽  
Electron Acceptors ◽  
Transfer Effects ◽  
Planar Configuration ◽  
Non Covalent Interactions ◽  
Covalent Interactions

The mediation of non-covalent interactions allowed unfused structures to exhibit a nearly planar configuration with strong charge-transfer effects, thereby ensuring efficient organic solar cells.

An A–D–A′–D–A type small molecule acceptor with a broad absorption spectrum for organic solar cells

2018 ◽  
Vol 54 (3) ◽  
pp. 303-306 ◽  
Author(s):  
Junhui Miao ◽  
Bin Meng ◽  
Jun Liu ◽  
Lixiang Wang
Keyword(s):  
Absorption Spectrum ◽  
Solar Cells ◽  
Charge Transfer ◽  
Absorption Spectra ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Intramolecular Charge Transfer ◽  
Transfer Effect ◽  
Broad Absorption

The use of an A–D–A′–D–A strategy to develop small molecule acceptors with broad absorption spectra through suppressing the intramolecular charge transfer effect is studied.

scholarly journals Conjugated polymer/fullerene nanostructures through cooperative non-covalent interactions for organic solar cells

Polymer ◽  
2015 ◽  
Vol 76 ◽  
pp. 220-229 ◽  
Author(s):  
Fei Li ◽  
Noel M. Dawson ◽  
Ying-Bing Jiang ◽  
Kevin J. Malloy ◽  
Yang Qin
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Conjugated Polymer ◽  
Non Covalent Interactions ◽  
Covalent Interactions

Fluorene functionalised sexithiophenes—utilising intramolecular charge transfer to extend the photocurrent spectrum in organic solar cells

2007 ◽  
Vol 17 (11) ◽  
pp. 1055-1062 ◽  
Author(s):  
Peter J. Skabara ◽  
Rory Berridge ◽  
Igor M. Serebryakov ◽  
Alexander L. Kanibolotsky ◽  
Lyudmila Kanibolotskaya ◽  
...  
Keyword(s):  
Solar Cells ◽  
Charge Transfer ◽  
Organic Solar Cells ◽  
Intramolecular Charge Transfer ◽  
Photocurrent Spectrum

Evaluating the Nature of Vertical Excited-States of Fused-Ring Electron Acceptors Using TD-DFT and Density-Based Charge Transfer

2021 ◽  
Author(s):  
Weihua Tang ◽  
Amjad Ali ◽  
Muhammad Imran Rafiq ◽  
Baojing Zhou
Keyword(s):  
Solar Cells ◽  
Charge Transfer ◽  
Absorption Spectra ◽  
Excited States ◽  
Organic Solar Cells ◽  
Electron Acceptors ◽  
Electronic Transitions ◽  
Td Dft ◽  
Fused Ring ◽  
Donor Acceptor

The acceptor-donor-acceptor structured fused-ring electron acceptors (FREAs) are the utmost efficient electron acceptors used in organic solar cells (OSCs). Typically, several efficient electronic transitions contribute to the absorption spectra of...

scholarly journals Single-Component Organic Solar Cells Based on Intramolecular Charge Transfer Photoabsorption

Materials ◽  
2021 ◽  
Vol 14 (5) ◽  
pp. 1200
Author(s):  
Ken-ichi Nakayama ◽  
Tatsuya Okura ◽  
Yuki Okuda ◽  
Jun Matsui ◽  
Akito Masuhara ◽  
...  
Keyword(s):  
Solar Cells ◽  
Charge Transfer ◽  
Organic Solar Cells ◽  
Intramolecular Charge Transfer ◽  
Internal Quantum Efficiency ◽  
Single Component ◽  
Chemical Calculation ◽  
Key Factor ◽  
Donor Acceptor ◽  
Acceptor Molecules

Conjugated donor–acceptor molecules with intramolecular charge transfer absorption are employed for single-component organic solar cells. Among the five types of donor–acceptor molecules, the strong push–pull structure of DTDCPB resulted in solar cells with high JSC, an internal quantum efficiency exceeding 20%, and high VOC exceeding 1 V with little photon energy loss around 0.7 eV. The exciton binding energy (EBE), which is a key factor in enhancing the photocurrent in the single-component device, was determined by quantum chemical calculation. The relationship between the photoexcited state and the device performance suggests that the strong internal charge transfer is effective for reducing the EBE. Furthermore, molecular packing in the film is shown to influence photogeneration in the film bulk.

Non-fullerene acceptors based on multiple non-covalent interactions for low cost and air stable organic solar cells

2021 ◽  
Vol 93 ◽  
pp. 106132
Author(s):  
Bi-Shan Lu ◽  
Yamin Zhang ◽  
Teng-Yue Hu ◽  
Yi-Fan Ma ◽  
Yan-Nan Zhu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Low Cost ◽  
Non Covalent Interactions ◽  
Covalent Interactions

Ethynyl-linked perylene bisimide based electron acceptors for non-fullerene organic solar cells

2018 ◽  
Vol 29 (2) ◽  
pp. 325-327 ◽  
Author(s):  
Changshi Yu ◽  
Yunhua Xu ◽  
Shijie Liang ◽  
Xudong Jiang ◽  
Guitao Feng ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Electron Acceptors ◽  
Perylene Bisimide
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