Tuning the photovoltaic parameters of thiophene-linked donor–acceptor liquid crystalline copolymers for organic photovoltaics

2012 ◽  
Vol 3 (3) ◽  
pp. 710 ◽  
Author(s):  
Kai Yao ◽  
Lie Chen ◽  
Yiwang Chen ◽  
Fan Li ◽  
Xingye Ren ◽  
...  
Keyword(s):  
Organic Photovoltaics ◽  
Liquid Crystalline ◽  
Donor Acceptor ◽  
Photovoltaic Parameters

scholarly journals Design of donor–acceptor star-shaped oligomers for efficient solution-processible organic photovoltaics

2014 ◽  
Vol 174 ◽  
pp. 313-339 ◽  
Author(s):  
S. A. Ponomarenko ◽  
Y. N. Luponosov ◽  
J. Min ◽  
A. N. Solodukhin ◽  
N. M. Surin ◽  
...  
Keyword(s):  
Organic Semiconductors ◽  
Organic Photovoltaics ◽  
Liquid Crystalline ◽  
Organic Photovoltaic ◽  
Future Perspectives ◽  
Photovoltaic Properties ◽  
Design Synthesis ◽  
Alkyl Groups ◽  
Donor Acceptor ◽  
Successful Approach

This contribution describes recent progress in the design, synthesis and properties of solution-processible star-shaped oligomers and their application in organic photovoltaics. Even though alternative chemistry has been used to design such oligomers, the most successful approach is based on a triphenylamine donor branching center, (oligo)thiophene conjugated spacers and dicyanovinyl acceptor groups. These are mainly amorphous low band-gap organic semiconductors, though crystalline or liquid crystalline ordering can sometimes be realized. It was shown that the solubility, thermal behavior and structure of such molecules in the bulk strongly depend on the presence and position of alkyl groups, as well as on their length. The photovoltaic properties of solution-processed molecules of this type are now approaching 5% which exceeds those of vacuum-sublimed devices. The design rules and future perspectives of this class of organic photovoltaic molecules are discussed.

scholarly journals Theoretical insights on acceptor–donor dyads for organic photovoltaics

2020 ◽  
Vol 22 (46) ◽  
pp. 27413-27424
Author(s):  
Michele Turelli ◽  
Domenico Alberga ◽  
Gianluca Lattanzi ◽  
Ilaria Ciofini ◽  
Carlo Adamo
Keyword(s):  
Organic Photovoltaics ◽  
Transport Mechanisms ◽  
Donor Acceptor

Transport mechanisms in a set of crystal polymorphs of a donor–acceptor dyad used in a SMOSC, are revealed through the comparison of polymorphs’ transport efficiencies. The findings offer hints on how to improve the design of better performing dyads.

Revealing the Chemistry and Morphology of Buried Donor/Acceptor Interfaces in Organic Photovoltaics

2017 ◽  
Vol 8 (13) ◽  
pp. 2764-2773 ◽  
Author(s):  
Monroe P. Griffin ◽  
Raluca Gearba ◽  
Keith J. Stevenson ◽  
David A. Vanden Bout ◽  
Andrei Dolocan
Keyword(s):  
Organic Photovoltaics ◽  
Donor Acceptor

Scattering Techniques for Mixed Donor-Acceptor Characterization in Organic Photovoltaics

2021 ◽  
Author(s):  
Thomas Chaney ◽  
Andrew Levin ◽  
Sebastian Schneider ◽  
Michael F. Toney
Keyword(s):  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Organic Photovoltaics ◽  
Bulk Heterojunction ◽  
Power Conversion ◽  
Organic Photovoltaic ◽  
Precise Control ◽  
Active Layers ◽  
Complex Morphology ◽  
Donor Acceptor

Precise control of the complex morphology of organic photovoltaic bulk heterojunction (BHJ) active layers remains an important yet challenging approach for improving power conversion efficiency. Of particular interest are the...

scholarly journals Determining the sequence and backbone structure of “semi-statistical” copolymers as donor–acceptor polymers in organic solar cells

2020 ◽  
Vol 4 (4) ◽  
pp. 2026-2034
Author(s):  
Samuel S. Lawton ◽  
Daniel Warr ◽  
Luís M. A. Perdigão ◽  
Yujing Chang ◽  
Agnieszka Pron ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Solar Cells ◽  
Organic Photovoltaics ◽  
Organic Solar Cells ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Donor Acceptor ◽  
Backbone Structure ◽  
Significant Attention

Organic photovoltaics (OPVs) are attracting significant attention due to the growing demand for economically viable and renewable energy sources.

A facile method to synthesize [A′(D′AD)2]-based push–pull small molecules for organic photovoltaics

RSC Advances ◽  
2015 ◽  
Vol 5 (81) ◽  
pp. 66005-66012 ◽  
Author(s):  
Mohamed Shaker ◽  
Jong-Hoon Lee ◽  
Cuc Kim Trinh ◽  
Wonbin Kim ◽  
Kwanghee Lee ◽  
...  
Keyword(s):  
Small Molecules ◽  
Band Gap ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Organic Photovoltaics ◽  
Power Conversion ◽  
Low Band Gap ◽  
Donor Acceptor

Synthesis of promising new composition low band gap small molecules based on the push–pull (donor–acceptor) system, which displayed power conversion efficiency of up to 3.24%.

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