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Title
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Exploring the potential of tetraazaacene derivatives as photovoltaic materials with enhanced photovoltaic parameters
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Subject |
Acceptor, open circuit voltage, photophysical properties, photovoltaics
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Author |
Rida Fatima,Rao Aqil Shehzad, Alvina Rasool, Muham
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Diss#. |
https://doi.org/10.1002/qua.26817 |
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Text Language |
English |
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Research Article |
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Abstract |
A series of D-π-A type molecules have been designed for their potential use in
organic photovoltaic devices. Photovoltaic and optoelectronic characteristics of
newly designed molecules have been explored by comparing with a reference molecule
R comprising of the central core (2,3,8,9-tetrakis(thiophen-2-ylethynyl)-
5,7,10,12-tetrakis((trimethylsilyl)ethynyl)pyrazino[2,3-b]phenazine) and π-bridge
(thiophene). The end groupsare (2-(2-ethylidene-3-oxo-2,3-dihydro-1H-inden-1
ylidene)malononitrile), (2-ethylidenemalonitrile), (methyl 2-cyanoacrylate) and
(3-methyl-5-methylene-2-thioxothiazolidin-4-one) in the newly designed molecules.
Among the investigated molecules M1 and M2 exhibit a broad absorption
range of 627 and 626 nm with respect to the reference. All the designed molecules
exhibited a lower bandgap as compared to R which indicates a better transfer of
electron density from highest occupied molecular orbital (HOMO) to lowest unoccupied
molecular orbital (LUMO). The reorganization
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