Optimization of Solubility, Film Morphology and Photodetector Performance by Molecular Side-Chain Engineering of Low-Bandgap Thienothiadiazole-Based Polymers

2014 ◽  
Vol 24 (48) ◽  
pp. 7605-7612 ◽  
Author(s):  
Ji Qi ◽  
Xiaokang Zhou ◽  
Dezhi Yang ◽  
Wenqiang Qiao ◽  
Dongge Ma ◽  
...  
Keyword(s):  
Side Chain ◽  
Film Morphology ◽  
Low Bandgap

Systematic structure modification of a low bandgap conjugated polymer improves thin film morphology and photovoltaic performance by incorporating naphthalene into side chains

2015 ◽  
Vol 3 (29) ◽  
pp. 7669-7676 ◽  
Author(s):  
Ying Sun ◽  
Chao Zhang ◽  
Qizan Huang ◽  
Bin Dai ◽  
Baoping Lin ◽  
...  
Keyword(s):  
Thin Film ◽  
Active Layer ◽  
Conjugated Polymer ◽  
Photovoltaic Performance ◽  
Side Chain ◽  
Side Chains ◽  
Film Morphology ◽  
Structure Modification ◽  
Low Bandgap ◽  
Systematic Structure

A naphthalene group was incorporated into the polymer side chain to help the active layer spontaneously form good film morphology.

Dependence of Excited-State Properties of a Low-Bandgap Photovoltaic Copolymer on Side-Chain Substitution and Solvent

ChemSusChem ◽  
2016 ◽  
Vol 9 (13) ◽  
pp. 1623-1633 ◽  
Author(s):  
Ning-Jiu Zhao ◽  
Mao-Jie Zhang ◽  
Ran Liang ◽  
Li-Min Fu ◽  
Wei Zhang ◽  
...  
Keyword(s):  
Excited State ◽  
Side Chain ◽  
Low Bandgap

Efficient polymer solar cells enabled by alkoxy-phenyl side-chain-modified main-chain-twisted small molecular acceptors

2020 ◽  
Vol 8 (42) ◽  
pp. 22335-22345
Author(s):  
Baofeng Zhao ◽  
Weiping Wang ◽  
Yuan Xie ◽  
Heng Zhao ◽  
Liuchang Wang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Main Chain ◽  
Polymer Solar Cells ◽  
Side Chain ◽  
Film Morphology

Alkoxy-phenyl-modified twisted NFAs with optimized film morphology achieve enhanced performances in polymer solar cells.

Side-chain engineering for fine-tuning of molecular packing and nanoscale blend morphology in polymer photodetectors

2017 ◽  
Vol 8 (13) ◽  
pp. 2055-2062 ◽  
Author(s):  
Liuyong Hu ◽  
Wenqiang Qiao ◽  
Xiaokang Zhou ◽  
Jinfeng Han ◽  
Xiaoqin Zhang ◽  
...  
Keyword(s):  
Molecular Packing ◽  
Fine Tuning ◽  
Side Chain ◽  
Side Chains ◽  
Low Bandgap ◽  
Blend Morphology

Enhancing the performance of polymer photodetectors by finely tuning the side chains of low-bandgap polymers.

Low bandgap carbazole copolymers containing an electron-withdrawing side chain for solar cell applications

2011 ◽  
Vol 95 (10) ◽  
pp. 2795-2804 ◽  
Author(s):  
Jung Feng Lee ◽  
Steve Lien Chung Hsu ◽  
Po I. Lee ◽  
Hung Yi Chuang ◽  
Ming Lun Yang ◽  
...  
Keyword(s):  
Solar Cell ◽  
Side Chain ◽  
Low Bandgap

Side-chain effects on the solution-phase conformations and charge photogeneration dynamics of low-bandgap copolymers

2013 ◽  
Vol 139 (12) ◽  
pp. 124904 ◽  
Author(s):  
Ming-Ming Huo ◽  
Ran Liang ◽  
Ya-Dong Xing ◽  
Rong Hu ◽  
Ning-Jiu Zhao ◽  
...  
Keyword(s):  
Solution Phase ◽  
Side Chain ◽  
Low Bandgap

Significant enhancement of responsivity of organic photodetectors upon molecular engineering

2019 ◽  
Vol 7 (19) ◽  
pp. 5739-5747 ◽  
Author(s):  
Lei Lv ◽  
Jinde Yu ◽  
Xinyu Sui ◽  
Jianfei Wu ◽  
Xiaohan Dong ◽  
...  
Keyword(s):  
Optical Absorption ◽  
Molecular Engineering ◽  
Significant Enhancement ◽  
Side Chain ◽  
Film Morphology ◽  
Blend Film ◽  
Organic Photodetectors

Upon incorporating S⋯O noncovalent conformational locks and side chain engineering, the optical absorption and blend film morphology of molecular acceptors are effectively tuned, resulting in an enhanced photocurrent and thus a higher responsivity (from 70.5 mA W−1 to 291.3 mA W−1) for P3HT-based OPDs.

scholarly journals Synthesis of Bithiophene-Based D-A1-D-A2 Terpolymers with Different A2 Moieties for Polymer Solar Cells via Direct Arylation

Polymers ◽  
2019 ◽  
Vol 11 (1) ◽  
pp. 55 ◽  
Author(s):  
Jinfeng Huang ◽  
Zhenkun Lin ◽  
Wenhuai Feng ◽  
Wen Wang
Keyword(s):  
Open Circuit Voltage ◽  
Polymer Solar Cells ◽  
Energy Levels ◽  
Open Circuit ◽  
Side Chain ◽  
Film Morphology ◽  
Photovoltaic Properties ◽  
Direct Arylation ◽  
Blend Film ◽  
Highest Occupied Molecular Orbital

A series of bithiophene (2T)-based D-A1-D-A2 terpolymers with different A2 moieties were prepared via direct arylation reaction. In these terpolymers, pyrrolo[3,4-c]pyrrole-1,4-dione (DPP) was selected as the first electron-accepting (A1) moiety, 2,1,3-benzothiadiazole (BT) or fluorinated benzothiadiazole (FBT) or octyl-thieno[3,4-c]pyrrole-4,6-dione (TPD) or 2,1,3-benzoselendiazole (SeT) was selected as the second electron-accepting (A2) moiety, while bithiophene with hexyl side chain was used as the electron-donating moiety. The UV-vis absorption, electrochemical properties, blend film morphology, and photovoltaic properties were studied to explore the effects of the A2 moiety. It is shown that these terpolymer films exhibit broad absorption (350–1000 nm), full width at half-maximum of more than 265 nm and ordered molecular packing. Varying the A2 moiety could affect the energy levels and blend film morphology leading to different polymer solar cell (PSC) performances of these (2T)-based D-A1-D-A2 terpolymers. As a result, the highest Jsc of 10.70 mA/cm2 is achieved for Polymer 1 (P1) with BT as A2 moiety, while the higher highest occupied molecular orbital (HOMO) level limits the open circuit voltage (Voc) and leads to a power conversion efficiency (PCE) of 3.46%.

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