4-Alkyl-3,5-difluorophenyl-Substituted Benzodithiophene-Based Wide Band Gap Polymers for High-Efficiency Polymer Solar Cells

2015 ◽  
Vol 8 (6) ◽  
pp. 3686-3692 ◽  
Author(s):  
Guangwu Li ◽  
Xue Gong ◽  
Jicheng Zhang ◽  
Yahui Liu ◽  
Shiyu Feng ◽  
...  
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
High Efficiency ◽  
Polymer Solar Cells ◽  
Wide Band ◽  
Wide Band Gap

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.

scholarly journals High-efficiency photovoltaic cells with wide optical band gap polymers based on fluorinated phenylene-alkoxybenzothiadiazole

2017 ◽  
Vol 10 (6) ◽  
pp. 1443-1455 ◽  
Author(s):  
Seo-Jin Ko ◽  
Quoc Viet Hoang ◽  
Chang Eun Song ◽  
Mohammad Afsar Uddin ◽  
Eunhee Lim ◽  
...  
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
High Performance ◽  
Optical Band Gap ◽  
High Efficiency ◽  
Bulk Heterojunction ◽  
Polymer Solar Cells ◽  
Photovoltaic Cells ◽  
Wide Band ◽  
Wide Band Gap

A new series of wide band gap photovoltaic polymers based on a fluorinated phenylene-alkoxybenzothiadiazole unit with an optical band gap of over 1.90 eV are designed and utilized for high-performance single- and multi-junction bulk heterojunction polymer solar cells.

High-Efficiency Lead-Free Wide Band Gap Perovskite Solar Cells via Guanidinium Bromide Incorporation

2021 ◽  
Author(s):  
Mengmeng Chen ◽  
Muhammad Akmal Kamarudin ◽  
Ajay K. Baranwal ◽  
Gaurav Kapil ◽  
Teresa S. Ripolles ◽  
...  
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Wide Band ◽  
Lead Free ◽  
Wide Band Gap

Highly Efficient All-Polymer Solar Cells from a Dithieno[3,2-f:2′,3′-h]quinoxaline-Based Wide Band Gap Donor

2021 ◽  
Author(s):  
Tingxing Zhao ◽  
Congcong Cao ◽  
Hengtao Wang ◽  
Xiangyu Shen ◽  
Hanjian Lai ◽  
...  
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
Polymer Solar Cells ◽  
Wide Band ◽  
Wide Band Gap ◽  
Highly Efficient

Achieving efficient polymer solar cells based on benzodithiophene–thiazole-containing wide band gap polymer donors by changing the linkage patterns of two thiazoles

2020 ◽  
Vol 44 (30) ◽  
pp. 13100-13107
Author(s):  
Changguo Xue ◽  
Yu Tang ◽  
Shihui Liu ◽  
He Feng ◽  
Shiqin Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
Conjugated Polymers ◽  
Band Gap ◽  
Polymer Solar Cells ◽  
Wide Band ◽  
Wide Band Gap

Two conjugated polymers with different combinations of two thiazoles were synthesized to study their photovoltaic performances.

Efficient fullerene-based and fullerene-free polymer solar cells using two wide band gap thiophene-thiazolothiazole-based photovoltaic materials

2016 ◽  
Vol 4 (24) ◽  
pp. 9511-9518 ◽  
Author(s):  
Kang Zhao ◽  
Qi Wang ◽  
Bowei Xu ◽  
Wenchao Zhao ◽  
Xiaoyu Liu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
Polymer Solar Cells ◽  
Wide Band ◽  
Wide Band Gap ◽  
Photovoltaic Materials

Efficient fullerene-based and fullerene-free PSCs were fabricated based on two wide band gap polymers PBT-TTz and PBT-S-TTz.

scholarly journals Low-Energy-Loss Polymer Solar Cells with 14.52% Efficiency Enabled by Wide-Band-Gap Copolymers

iScience ◽  
2019 ◽  
Vol 12 ◽  
pp. 1-12 ◽  
Author(s):  
Kui Feng ◽  
Jian Yuan ◽  
Zhaozhao Bi ◽  
Wei Ma ◽  
Xiaopeng Xu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Energy Loss ◽  
Band Gap ◽  
Polymer Solar Cells ◽  
Wide Band ◽  
Low Energy ◽  
Wide Band Gap

scholarly journals Wide Band Gap Polymer Based on Indacenodithiophene and Acenaphthoquinoxaline for Efficient Polymer Solar Cells Application

Polymers ◽  
2017 ◽  
Vol 9 (11) ◽  
pp. 578 ◽  
Author(s):  
Ming Liu ◽  
Zhitian Liu ◽  
Yong Zhang ◽  
Liancheng Zhao
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
Polymer Solar Cells ◽  
Wide Band ◽  
Wide Band Gap

Wide band gap diketopyrrolopyrrole-based conjugated polymers incorporating biphenyl units applied in polymer solar cells

2014 ◽  
Vol 50 (6) ◽  
pp. 679-681 ◽  
Author(s):  
Weiwei Li ◽  
Alice Furlan ◽  
W. S. Christian Roelofs ◽  
Koen H. Hendriks ◽  
Gijs W. P. van Pruissen ◽  
...  
Keyword(s):  
Solar Cells ◽  
Conjugated Polymers ◽  
Band Gap ◽  
Polymer Solar Cells ◽  
Wide Band ◽  
Wide Band Gap
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