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Molecular architecturing of a small two dimensional A-D-A molecule for photovoltaic application

Published online by Cambridge University Press:  23 May 2016

Vinila Nellissery Viswanathan ,
Arul Varman Kesavan  and
Praveen C Ramamurthy
Vinila Nellissery Viswanathan
Affiliation:
Department of Materials Engineering, Indian Institute of Science, Bangalore, 560012.
Arul Varman Kesavan
Affiliation:
Department of Materials Engineering, Indian Institute of Science, Bangalore, 560012.
Praveen C Ramamurthy*
Affiliation:
Department of Materials Engineering, Indian Institute of Science, Bangalore, 560012.
*
*(Email: onegroupb203@gmail.com)
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Abstract

A-D-A architectured quinoxaline and bezodithiophene based small molecule exhibiting low band gap was designed and synthesized for bulk heterojunction solar cell application. Two dimension conjugation to the molecule was imparted by using alkylated aromatic units. This effective extension of conjugation broadens the absorption spectra. Optical and electrochemical properties suggest that the synthesized molecule has a low band-gap and well matching frontier molecular orbital energy levels with that of PCBM. A photovoltaic device using this A-D-A molecule as the active layer was fabricated to evaluate the optoelectronics properties.

Keywords

organicpolymersolution deposition

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Type
Articles
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MRS Advances , Volume 1 , Issue 43: Energy and Environment , 2016 , pp. 2917 - 2922
Copyright
Copyright © Materials Research Society 2016 

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References

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