Regioisomeric wide-band-gap polymers with different fluorine topologies for non-fullerene organic solar cells

2019 ◽  
Vol 10 (3) ◽  
pp. 395-402 ◽  
Author(s):  
Yuxiang Li ◽  
Jin-Woo Lee ◽  
Minseok Kim ◽  
Changyeon Lee ◽  
Young Woong Lee ◽  
...  
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
Organic Solar Cells ◽  
Wide Band ◽  
Wide Band Gap ◽  
Photovoltaic Properties

The effects of different fluorine substituent topologies on the morphological and photovoltaic properties are studied for two regioisomeric donor polymer-based nonfullerene organic solar cells.

Two-Dimensional BDT-Based Wide Band Gap Polymer Donor for Efficient Non-Fullerene Organic Solar Cells

2017 ◽  
Vol 121 (36) ◽  
pp. 19634-19641 ◽  
Author(s):  
Kai Zhang ◽  
Yunpeng Qin ◽  
Feng Li ◽  
Liangmin Yu ◽  
Mingliang Sun
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
Organic Solar Cells ◽  
Wide Band ◽  
Two Dimensional ◽  
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.

Branched versus linear: side-chain effect on fluorinated wide bandgap donors and their applications in organic solar cells

2020 ◽  
Vol 44 (3) ◽  
pp. 753-760
Author(s):  
Tainan Duan ◽  
Ru-Ze Liang ◽  
Yingying Fu ◽  
Yuying Chang ◽  
Zhipeng Kan ◽  
...  
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
Organic Solar Cells ◽  
Organic Molecules ◽  
Wide Band ◽  
Wide Bandgap ◽  
Side Chain ◽  
Wide Band Gap ◽  
Solution Processed ◽  
Small Organic Molecules

We report a new series of wide band-gap small organic molecules as donor-materials featuring an indaceno[1,2-b:5,6-b′]dithiophene (IDT) core and fluorinated thiophene linkers for solution-processed organic solar cells.

Manipulating the Intermolecular Stacking of Polymeric Donors for Efficient Organic Solar Cells

2021 ◽  
Author(s):  
Yong Zhao ◽  
Yu Lu ◽  
Yonghai Li ◽  
Xiao Kang ◽  
Xichang Bao ◽  
...  
Keyword(s):  
Solar Cells ◽  
Conjugated Polymers ◽  
Band Gap ◽  
Organic Solar Cells ◽  
High Performance ◽  
Wide Band ◽  
Wide Band Gap

Most polymer donors developed so far for high-performance non-fullerene OSCs are designed in planar molecular geometries containing BDT units. In this work, two D−A conjugated polymers with wide band gap,...

Backbone Conformation Tuning of Carboxylate-Functionalized Wide Band Gap Polymers for Efficient Non-Fullerene Organic Solar Cells

2018 ◽  
Vol 52 (1) ◽  
pp. 341-353 ◽  
Author(s):  
Jianhua Chen ◽  
Lei Wang ◽  
Jie Yang ◽  
Kun Yang ◽  
Mohammad Afsar Uddin ◽  
...  
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
Organic Solar Cells ◽  
Wide Band ◽  
Wide Band Gap ◽  
Backbone Conformation

Thiophene and thieno[3,2-b]thiophene π-bridged pyrrolo[3,4-c]pyrrole-1,3-dione-based wide band-gap polymers for fullerene and non-fullerene organic solar cells

2018 ◽  
Vol 63 ◽  
pp. 78-85 ◽  
Author(s):  
Vellaiappillai Tamilavan ◽  
Jihoon Lee ◽  
Rajalingam Agneeswari ◽  
Yun Kyung Jung ◽  
Youngeup Jin ◽  
...  
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
Organic Solar Cells ◽  
Wide Band ◽  
Wide Band Gap

Novel wide band gap copolymers featuring excellent comprehensive performance towards the practical application for organic solar cells

2017 ◽  
Vol 8 (30) ◽  
pp. 4332-4338 ◽  
Author(s):  
Dalei Yang ◽  
Zelin Li ◽  
Zidong Li ◽  
Xiaoli Zhao ◽  
Tong Zhang ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Solar Cells ◽  
Band Gap ◽  
Active Layer ◽  
Organic Solar Cells ◽  
Wide Band ◽  
Practical Application ◽  
Wide Band Gap ◽  
Comprehensive Performance

A novel WBG copolymer exhibits a high PCE of 9.42% with a thick active layer and remarkable thermal stability.

Efficient Fullerene-Free Organic Solar Cells Using a Coumarin-Based Wide-Band-Gap Donor Material

2020 ◽  
Vol 12 (37) ◽  
pp. 41869-41876 ◽  
Author(s):  
Rashmirekha Pradhan ◽  
Prateek Malhotra ◽  
Gaurav Gupta ◽  
Rahul Singhal ◽  
Ganesh D. Sharma ◽  
...  
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
Organic Solar Cells ◽  
Wide Band ◽  
Wide Band Gap ◽  
Donor Material
Sign in / Sign up

Export Citation Format

Share Document