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Title Simple Thiophene Based Organic Dyes as Active Photosensitizers for DSSC Application: from Molecular Design to Structure Property Relationship
Authors Keremane, Kavya S.
Naik, Praveen
Adhikari, Airody Vasudeva
ORCID
Keywords thiophene
DSSC
DFT
J-V characteristics
sensitization
Type Article
Date of Issue 2020
URI https://essuir.sumdu.edu.ua/handle/123456789/77392
Publisher Sumy State University
License
Citation Keremane, Kavya S. Simple Thiophene Based Organic Dyes as Active Photosensitizers for DSSC Application: from Molecular Design to Structure Property Relationship [Текст] / Kavya S. Keremane, Praveen Naik, Airody Vasudeva Adhikari // Журнал нано- та електронної фізики. – 2020. – Т. 12, № 2. – 02039. – DOI: 10.21272/jnep.12(2).02039.
Abstract The main objective of our present investigation includes the design synthesis and characterization of two novel D-π-A configured carbazole based dyes C1-2, carrying two different anchors and the same donor system. In the new design, a simple O-alkylated phenyl group as a donor scaffold, cyanovinylene and thiophene group serve as a π-spacer, while cyanoacetic acid, barbituric acid units function as electron acceptor/anchoring units. The newly synthesized compounds were characterized by FTIR, NMR spectroscopic techniques including the elemental analysis. Further, their optical properties were investigated by using UV-visible, fluorescence spectrophotometer. In addition, the Density functional theory (DFT) calculations were performed to get their electron distribution in FMO levels. In order to investigate their photovoltaic characteristics, the synthesized dyes were employed as sensitizers towards the fabrication of DSSC’s. The device fabricated with dye C1 displayed better PCE of 1.2 % with JSC of 3.64 mA·cm – 2, VOC of 0.50 V and FF of 65 % than other dye C2. These experimental results provide a better understanding and deeper insight into the intricacies involved in the design of superior sensitizers to further improve the performance of DSSCs.
Appears in Collections: Журнал нано- та електронної фізики (Journal of nano- and electronic physics)

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Chile Chile
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