Influence of aromatic heterocycle of conjugated side chains on photovoltaic performance of benzodithiophene-based wide-bandgap polymers

2016 ◽  
Vol 7 (24) ◽  
pp. 4036-4045 ◽  
Author(s):  
Xiaonan Xue ◽  
Bingbing Fan ◽  
Tao Liu ◽  
Xiaobo Sun ◽  
Lijun Huo ◽  
...  
Keyword(s):  
Photovoltaic Performance ◽  
Wide Bandgap ◽  
Side Chains ◽  
Aromatic Heterocycle

The influence of conjugated side chains on photovoltaic performance of benzodithiophene-based wide-bandgap polymers is studied by traversing chalcogen heterocycles.

Processing a pyridyl-based polymeric additive for improved photovoltaic performance of a wide-bandgap π-conjugated polymer

2016 ◽  
Vol 4 (34) ◽  
pp. 8052-8060 ◽  
Author(s):  
Baobing Fan ◽  
Lei Ying ◽  
Fei Huang ◽  
Yong Cao
Keyword(s):  
Conjugated Polymer ◽  
Photovoltaic Performance ◽  
Terminal Group ◽  
Wide Bandgap ◽  
Side Chains ◽  
Polymeric Additive

In this manuscript we introduced a novel conjugated polymeric additive PBTA-Py with benzodithiophene-alt-benzo[1,2,3]triazole as the backbone and polar pyridyl as the terminal group of the side chains.

Ester-Functionalized, Wide-Bandgap Derivatives of PM7 for Simultaneous Enhancement of Photovoltaic Performance and Mechanical Robustness of All-Polymer Solar Cells

2021 ◽  
Author(s):  
Hoseon You ◽  
Austin Jones ◽  
Boo Soo Ma ◽  
Geon-U Kim ◽  
Seungjin Lee ◽  
...  
Keyword(s):  
Solar Cells ◽  
Structural Modification ◽  
Polymer Solar Cells ◽  
Photovoltaic Performance ◽  
Wide Bandgap ◽  
Derivatives Of

In this study, two wide-bandgap PM7 polymer derivatives are developed via simple structural modification of the fused-accepting unit by incorporating ester groups on terthiophene at different positions (i.e., two ester...

scholarly journals Effect of Side-Chain Variation on Single-Crystalline Structures for Revealing the Structure–Property Relationships of Organic Solar Cells

2020 ◽  
Vol 02 (01) ◽  
pp. 026-032
Author(s):  
Chen Yang ◽  
Liu Yuan ◽  
Ruimin Zhou ◽  
Zhen Wang ◽  
Jianqi Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Single Crystal ◽  
Crystal Structures ◽  
Organic Solar Cells ◽  
Short Circuit ◽  
Photovoltaic Performance ◽  
Side Chains ◽  
Single Crystal Structures ◽  
Stacking Structure ◽  
Molecular Stacking

The molecular stacking assembly in the active layer plays a significant role in the photovoltaic performance of organic solar cells (OSCs). Here, we report two new small molecular donors with different side chains, FBT-O and FBT-H, and their corresponding fullerene-based OSCs. A slight change in the side chains led to a big difference in the power conversion efficiencies (PCEs). Although the molecular structures of the two donors are similar to each other, PCEs of the devices based on FBT-O were almost three times higher than those of the devices based on FBT-H, with manifold short-circuit current density, fill factor, as well as three orders of magnitude enhancement in the hole mobility. The difference in their single crystal structures was thoroughly investigated, whereby the FBT-O exhibited better planarity leading to appropriate phase separation and domain size. Furthermore, two-dimensional grazing-incidence wide-angle X-ray scattering results of the blend films revealed that the two donors retained a similar stacking structure as compared to the single-crystal structures, thus, establishing a clear relationship between the molecular stacking structure and the device performance.

Halogenation on benzo[1,2-b:4,5-b′]difuran polymers for solvent additive-free non-fullerene polymer solar cells with efficiency exceeding 11%

2020 ◽  
Vol 8 (1) ◽  
pp. 139-146
Author(s):  
Enfang He ◽  
Yi Lu ◽  
Zhi Zheng ◽  
Fengyun Guo ◽  
Shiyong Gao ◽  
...  
Keyword(s):  
Solar Cells ◽  
Polymer Solar Cells ◽  
Wide Bandgap ◽  
Side Chains ◽  
Two Dimensional ◽  
Solvent Additive

In this work, two novel two-dimensional (2D) benzo[1,2-b:4,5-b′]difuran (BDF)-based wide bandgap polymers were designed using a halogenation strategy by incorporating fluorine- and chlorine-substituted conjugated side chains, respectively.

A polymer electron donor based on isoindigo units bearing branched oligo(ethylene glycol) side chains for polymer solar cells

2017 ◽  
Vol 8 (36) ◽  
pp. 5496-5503 ◽  
Author(s):  
Xingxing Chen ◽  
Zijian Zhang ◽  
Jun Liu ◽  
Lixiang Wang
Keyword(s):  
Solar Cells ◽  
Ethylene Glycol ◽  
Electron Donor ◽  
Polymer Solar Cells ◽  
Photovoltaic Performance ◽  
Side Chains

The oligo(ethylene glycol) side chains make the polymer donor exhibit good compatibility with PC71BM and consequently show good photovoltaic performance.

scholarly journals Thermal behaviour of dicarboxylic ester bithiophene polymers exhibiting a high open-circuit voltage

2018 ◽  
Vol 6 (14) ◽  
pp. 3731-3742 ◽  
Author(s):  
Ruurd Heuvel ◽  
Fallon J. M. Colberts ◽  
Martijn M. Wienk ◽  
René A. J. Janssen
Keyword(s):  
Solar Cells ◽  
Thermal Properties ◽  
Thermal Behaviour ◽  
Open Circuit Voltage ◽  
Photovoltaic Performance ◽  
Open Circuit ◽  
Side Chains ◽  
Open Circuit Voltages ◽  
Dicarboxylic Ester

Polythiophene derivatives with ester side chains enable high open-circuit voltages in polymer–fullerene solar cells. The side chains affect the solubility, thermal properties, tendency to aggregate, and photovoltaic performance by modulating the morphology of the blends.

Influence of polymer side chains on the photovoltaic performance of non-fullerene organic solar cells

2017 ◽  
Vol 5 (4) ◽  
pp. 937-942 ◽  
Author(s):  
Xue Gong ◽  
Guangwu Li ◽  
Shiyu Feng ◽  
Liangliang Wu ◽  
Yahui Liu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Energy Level ◽  
Organic Solar Cells ◽  
Photovoltaic Performance ◽  
Great Influence ◽  
Molecular Packing ◽  
Side Chains ◽  
Blend Morphology

The side chains of polymers had a great influence on their molecular packing, energy level, blend morphology and photovoltaic performance. The PCEs of 7.28% and 1.55% were obtained for alkoxy and alkylthio-substituted polymer based non-fullerene solar cells, respectively.

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