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Molecular insights of non-fused nonfullerene acceptor comprising a different central core for high efficiency organic solar cell.

Authors :
Oh, Sora
Kim, Yejin
Ahn, Taek
Lee, Sang Kyu
Source :
Molecular Crystals & Liquid Crystals. 2023, Vol. 761 Issue 1, p68-78. 11p.
Publication Year :
2023

Abstract

In this study, we applied a strategy which is systematically varying the central' core in non-fused NFA structure to modulate the optical-electrochemical properties and photovoltaic performance. The optical and structural calculation was analyzed via UV–Vis spectroscopy and DFT calculation. The results exhibit that strong NIR absorption and good planar backbone structure on those non-fused NFAs. Consequently, photovoltaic device based on TT linked acceptor delivered a promising photovoltaic efficiency of 8.37% for as-cast device. These results suggest that the change of central unit is an effective strategy to improve the optoelectronic properties of non-fused NFAs in organic solar cells. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
15421406
Volume :
761
Issue :
1
Database :
Academic Search Index
Journal :
Molecular Crystals & Liquid Crystals
Publication Type :
Academic Journal
Accession number :
169921379
Full Text :
https://doi.org/10.1080/15421406.2023.2176027