Near-infrared electron acceptors based on terrylene diimides for organic solar cells

2018 ◽  
Vol 6 (39) ◽  
pp. 18808-18812 ◽  
Author(s):  
Ningning Liang ◽  
Kai Sun ◽  
Jiajing Feng ◽  
Yu Chen ◽  
Dong Meng ◽  
...  
Keyword(s):  
Solar Cells ◽  
Charge Transport ◽  
Absorption Spectra ◽  
Organic Solar Cells ◽  
Near Infrared ◽  
Photovoltaic Performance ◽  
Electron Acceptors ◽  
Electron Donating Groups

The introduction of electron-donating groups into TDI broadens the absorption spectra and enhances the charge transport and photovoltaic performance.

Solution-processable silicon naphthalocyanine tetraimides as near infrared electron acceptors in organic solar cells

2022 ◽  
Vol 197 ◽  
pp. 109846
Author(s):  
Chunsheng Cai ◽  
Lei Wang ◽  
Ming Hu ◽  
Li Li ◽  
Jubiao Fu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Near Infrared ◽  
Electron Acceptors ◽  
Solution Processable

Enhancing organic photovoltaic performance with 3D-transport dual nonfullerene acceptors

2022 ◽  
Author(s):  
Shuixing Dai ◽  
Mengyang Li ◽  
Jingming Xin ◽  
Guanyu Lu ◽  
Peiyao Xue ◽  
...  
Keyword(s):  
Solar Cells ◽  
Charge Transport ◽  
Organic Solar Cells ◽  
Bulk Heterojunction ◽  
Photovoltaic Performance ◽  
Organic Photovoltaic ◽  
Sequential Process

We used dual nonfullerene acceptors Y6:FINIC with 3D charge transport features and polymer donor PM6 to fabricate sequential-process heterojunction (SHJ) and bulk heterojunction (BHJ) organic solar cells (OSCs). FINIC has...

Near-infrared electron acceptors with fused nonacyclic molecular backbones for nonfullerene organic solar cells

2020 ◽  
Vol 4 (6) ◽  
pp. 1729-1738 ◽  
Author(s):  
Jianquan Zhang ◽  
Yunke Li ◽  
Zhengxing Peng ◽  
Fujin Bai ◽  
Lik-Kuen Ma ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Near Infrared ◽  
Electron Acceptors ◽  
Strong Electron ◽  
Molecular Backbone

Two strong electron-donating moieties were fused into the molecular backbone of small molecular acceptors showing dramatically extended absorption beyond 900 nm.

scholarly journals Unraveling the influence of non-fullerene acceptor molecular packing on photovoltaic performance of organic solar cells

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Linglong Ye ◽  
Kangkang Weng ◽  
Jinqiu Xu ◽  
Xiaoyan Du ◽  
Sreelakshmi Chandrabose ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solid State ◽  
Charge Transport ◽  
Organic Solar Cells ◽  
Photovoltaic Performance ◽  
Transport Pathway ◽  
Π Stacking ◽  
Fused Ring ◽  
Efficient Charge ◽  
End Group

AbstractIn non-fullerene organic solar cells, the long-range structure ordering induced by end-group π–π stacking of fused-ring non-fullerene acceptors is considered as the critical factor in realizing efficient charge transport and high power conversion efficiency. Here, we demonstrate that side-chain engineering of non-fullerene acceptors could drive the fused-ring backbone assembly from a π–π stacking mode to an intermixed packing mode, and to a non-stacking mode to refine its solid-state properties. Different from the above-mentioned understanding, we find that close atom contacts in a non-stacking mode can form efficient charge transport pathway through close side atom interactions. The intermixed solid-state packing motif in active layers could enable organic solar cells with superior efficiency and reduced non-radiative recombination loss compared with devices based on molecules with the classic end-group π–π stacking mode. Our observations open a new avenue in material design that endows better photovoltaic performance.

Near-Infrared Electron Acceptors with Unfused Architecture for Efficient Organic Solar Cells

2020 ◽  
Vol 12 (14) ◽  
pp. 16700-16706 ◽  
Author(s):  
Chengliang He ◽  
Yaokai Li ◽  
Shuixing Li ◽  
Zhi-Peng Yu ◽  
Yuhao Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Near Infrared ◽  
Electron Acceptors

scholarly journals Rational design of near-infrared dyes based on boron dipyrromethene derivatives for application in organic solar cells

RSC Advances ◽  
2018 ◽  
Vol 8 (59) ◽  
pp. 33659-33665 ◽  
Author(s):  
Man Zhang ◽  
Ruifa Jin
Keyword(s):  
Solar Cells ◽  
Charge Transport ◽  
Organic Solar Cells ◽  
Rational Design ◽  
Near Infrared ◽  
High Efficiency ◽  
Boron Dipyrromethene ◽  
Active Donor

A series of novel pyrrolopyrrole boron dipyrromethene derivatives have been designed as high-efficiency red/near-infrared-active donor materials and charge transport materials in OSC applications.

Terminal π–π stacking determines three-dimensional molecular packing and isotropic charge transport in an A–π–A electron acceptor for non-fullerene organic solar cells

2017 ◽  
Vol 5 (20) ◽  
pp. 4852-4857 ◽  
Author(s):  
Guangchao Han ◽  
Yuan Guo ◽  
Xiaoxian Song ◽  
Yue Wang ◽  
Yuanping Yi
Keyword(s):  
Solar Cells ◽  
Charge Transport ◽  
Electron Acceptor ◽  
Organic Solar Cells ◽  
High Performance ◽  
Three Dimensional ◽  
Molecular Packing ◽  
Electron Acceptors ◽  
Π Stacking

Three-dimensional molecular packing and isotropic charge transport can be achieved through local π–π stacking between terminal acceptor units for A–π–A electron acceptors toward high-performance non-fullerene organic solar cells.

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...

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