Wide Bandgap Molecular Acceptors with a Truxene Core for Efficient Nonfullerene Polymer Solar Cells: Linkage Position on Molecular Configuration and Photovoltaic Properties

2018 ◽  
Vol 28 (18) ◽  
pp. 1707493 ◽  
Author(s):  
Wenlin Wu ◽  
Guangjun Zhang ◽  
Xiaopeng Xu ◽  
Shichao Wang ◽  
Ying Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
Polymer Solar Cells ◽  
Wide Bandgap ◽  
Molecular Configuration ◽  
Photovoltaic Properties ◽  
Linkage Position

Effects of incorporated pyrazine on the interchain packing and photovoltaic properties of wide-bandgap D–A polymers for non-fullerene polymer solar cells

2019 ◽  
Vol 10 (32) ◽  
pp. 4459-4468 ◽  
Author(s):  
Gururaj P. Kini ◽  
Jun Young Choi ◽  
Sung Jae Jeon ◽  
Il Soon Suh ◽  
Doo Kyung Moon
Keyword(s):  
Solar Cells ◽  
Polymer Solar Cells ◽  
Wide Bandgap ◽  
Photovoltaic Properties ◽  
Donor Acceptor ◽  
The Impact

The impact of using pyrazine as an acceptor core for designing donor–acceptor (D–A) based wide bandgap polymers for application in non-fullerene solar cells was evaluated.

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...

A dithienobenzothiadiazole-quaterthiophene wide bandgap polymer enables non-fullerene based polymer solar cells with over 15% efficiency

Polymer ◽  
2021 ◽  
pp. 124193
Author(s):  
Zesheng Zhang ◽  
Feilong Pan ◽  
Mei Luo ◽  
Dong Yuan ◽  
Haizhen Liu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Polymer Solar Cells ◽  
Wide Bandgap ◽  
Wide Bandgap Polymer

Side-chain engineering for efficient non-fullerene polymer solar cells based on a wide-bandgap polymer donor

2017 ◽  
Vol 5 (19) ◽  
pp. 9204-9209 ◽  
Author(s):  
Qunping Fan ◽  
Wenyan Su ◽  
Xia Guo ◽  
Yan Wang ◽  
Juan Chen ◽  
...  
Keyword(s):  
Solar Cells ◽  
Polymer Solar Cells ◽  
Wide Bandgap ◽  
Side Chain ◽  
Wide Bandgap Polymer

Non-fullerene polymer solar cells based on a wide-bandgap polymer, PSBZ, exhibited a PCE of up to 10.5% with a high Jsc of 19.0 mA cm−2.

Ladder-type dithienocyclopentadibenzothiophene-cored wide-bandgap polymers for efficient non-fullerene solar cells with large open-circuit voltages

2019 ◽  
Vol 7 (7) ◽  
pp. 3307-3316 ◽  
Author(s):  
Qisheng Tu ◽  
Changquan Tang ◽  
Qingdong Zheng
Keyword(s):  
Solar Cells ◽  
Polymer Solar Cells ◽  
Wide Bandgap ◽  
Open Circuit ◽  
Open Circuit Voltages ◽  
Excellent Stability

Novel wide-bandgap copolymers based on ladder-type dithienocyclopentadibenzothiophene were developed for polymer solar cells with 9.46% efficiency and excellent stability.

scholarly journals Molecular Engineering Enhances the Charge Carriers Transport in Wide Band-Gap Polymer Donors Based Polymer Solar Cells

Molecules ◽  
2020 ◽  
Vol 25 (18) ◽  
pp. 4101
Author(s):  
Siyang Liu ◽  
Shuwang Yi ◽  
Peiling Qing ◽  
Weijun Li ◽  
Bin Gu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
High Efficiency ◽  
Polymer Solar Cells ◽  
Acid Methyl Ester ◽  
Wide Band ◽  
Molecular Engineering ◽  
Wide Band Gap ◽  
Photovoltaic Properties ◽  
Solvent Vapor

The novel and appropriate molecular design for polymer donors are playing an important role in realizing high-efficiency and high stable polymer solar cells (PSCs). In this work, four conjugated polymers (PIDT-O, PIDTT-O, PIDT-S and PIDTT-S) with indacenodithiophene (IDT) and indacenodithieno [3,2-b]thiophene (IDTT) as the donor units, and alkoxy-substituted benzoxadiazole and benzothiadiazole derivatives as the acceptor units have been designed and synthesized. Taking advantages of the molecular engineering on polymer backbones, these four polymers showed differently photophysical and photovoltaic properties. They exhibited wide optical bandgaps of 1.88, 1.87, 1.89 and 1.91 eV and quite impressive hole mobilities of 6.01 × 10−4, 7.72 × 10−4, 1.83 × 10−3, and 1.29 × 10−3 cm2 V−1 s−1 for PIDT-O, PIDTT-O, PIDT-S and PIDTT-S, respectively. Through the photovoltaic test via using PIDT-O, PIDTT-O, PIDT-S and PIDTT-S as donor materials and [6,6]-phenyl-C-71-butyric acid methyl ester (PC71BM) as acceptor materials, all the PSCs presented the high open circuit voltages (Vocs) over 0.85 V, whereas the PIDT-S and PIDTT-S based devices showed higher power conversion efficiencies (PCEs) of 5.09% and 4.43%, respectively. Interestingly, the solvent vapor annealing (SVA) treatment on active layers could improve the fill factors (FFs) extensively for these four polymers. For PIDT-S and PIDTT-S, the SVA process improved the FFs exceeding 71%, and ultimately the PCEs were increased to 6.05%, and 6.12%, respectively. Therefore, this kind of wide band-gap polymers are potentially candidates as efficient electron-donating materials for constructing high-performance PSCs.

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.

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