Synthesis and photovoltaic properties of two-dimensional benzodithiophene-thiophene copolymers with pendent rational naphtho[1,2-c:5,6-c]bis[1,2,5]thiadiazole side chains

2015 ◽  
Vol 3 (46) ◽  
pp. 23149-23161 ◽  
Author(s):  
Xiaopeng Xu ◽  
Kui Feng ◽  
Kai Li ◽  
Qiang Peng
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Molecular Design ◽  
Polymer Solar Cells ◽  
Side Chains ◽  
Two Dimensional ◽  
Photovoltaic Properties ◽  
Solvent Vapour ◽  
Rational Molecular Design ◽  
Annealing Method

Rational molecular design of the conjugated side chains and the solvent vapour annealing method were employed in this work to develop high performance two-dimensional copolymer donors and their efficient polymer solar cells.

Synthesis and photovoltaic properties of an n-type two-dimension-conjugated polymer based on perylene diimide and benzodithiophene with thiophene conjugated side chains

2015 ◽  
Vol 3 (36) ◽  
pp. 18442-18449 ◽  
Author(s):  
Youdi Zhang ◽  
Qun Wan ◽  
Xia Guo ◽  
Wanbin Li ◽  
Bing Guo ◽  
...  
Keyword(s):  
Solar Cells ◽  
Conjugated Polymer ◽  
Polymer Solar Cells ◽  
Perylene Diimide ◽  
Side Chains ◽  
Two Dimensional ◽  
Stille Coupling ◽  
Photovoltaic Properties ◽  
Two Dimension

A novel n-type two-dimensional (2D) conjugated polymer based on bithienyl-benzodithiophene (BDT) and perylene diimide (PDI), P(PDI-BDT-T), is synthesized by Stille coupling for applications in all-polymer solar cells (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.

Highly crystalline two-dimensional copolymer with dominant face-on orientation for high performance polymer solar cells

2020 ◽  
Vol 134 ◽  
pp. 109799
Author(s):  
Shih-Hao Wang ◽  
Rathinam Raja ◽  
Shih-Wei Yu ◽  
Ru-Jong Jeng ◽  
Jyh-Chien Chen ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Polymer Solar Cells ◽  
Two Dimensional ◽  
High Performance Polymer

scholarly journals Comparing Benzodithiophene Unit with Alkylthionaphthyl and Alkylthiobiphenyl Side-Chains in Constructing High-Performance Nonfullerene Solar Cells

Polymers ◽  
2020 ◽  
Vol 12 (8) ◽  
pp. 1673
Author(s):  
Ruyi Xie ◽  
Li Song ◽  
Zhihui Zhao
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
High Performance ◽  
Fill Factor ◽  
Power Conversion ◽  
Vertical Direction ◽  
Side Chains ◽  
Aromatic Rings ◽  
Photovoltaic Properties

Using single-bonded and fused aromatic rings are two methods for extending the π-conjugation in the vertical direction of benzo [1,2-b:4,5-b′] dithiophene (BDT) unit. To investigate which method is more efficient in nonfullerene systems, two novel polymers based on alkylthionaphthyl and alkylthiobiphenyl substituted BDT named PBDTNS-FTAZ and PBDTBPS-FTAZ are designed and synthesized. Two polymers only exhibit small differences in structure, but huge differences in photovoltaic properties. They are studied by blended with 3,9-bis(2-methylene-(3-(1,1-dicyanomethylene)indanone)-5,5,11,11-tetrakis(4-hexylphenyl)dithieno [2,3-d’:2,3’-d’]-s-indaceno [1,2-b:5,6-b’] dithiophene (ITIC). The device based on PBDTNS-FTAZ:ITIC showed the best power conversion efficiency (PCE) of 9.63% with the Voc of 0.87 V, a Jsc of 18.06 mA/cm2 and a fill factor of 61.21%, while the PBDTBPS-FTAZ:ITIC only exhibit a maximum PCE of 7.79% with a Voc of 0.86 V, a Jsc of 16.24 mA/cm2 and a relatively low fill factor of 55.92%. Therefore, extending π-conjugation with alkylthionaphthyl is more effective against constructing nonfullerene solar cells.

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