Research Article

A DFT/TD-DFT Study on Pyridine-Anchored Schiff Base Molecules for DSSC Applications

Volume: 37 Number: 3 September 1, 2024
EN

A DFT/TD-DFT Study on Pyridine-Anchored Schiff Base Molecules for DSSC Applications

Abstract

The primary objective of this research is to examine the Schiff bases produced from pyridine-anchored molecules, with a specific focus on their potential utilization in dye-sensitized solar cells (DSSCs). The electrical, spectroscopic, and photovoltaic properties of dyes incorporating a pyridine anchor were calculated utilizing DFT and TD-DFT methodologies. The geometries, electronic characteristics, and photovoltaic properties of the dyes under investigation were evaluated using DFT-B3LYP/6-311++G(d,p) quantum chemical simulations. The excitation energies and UV-Vis spectra of the dyes have been computed utilizing the TD-DFT-B3LYP/6-311++G(d,p) methodology and the conductor-like polarizable continuum model (C-PCM). The electron injection and dye regeneration processes are contingent upon the energy levels of the highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) of these dyes. The investigation focused mainly on four fundamental components exhibiting robust interconnections and equivalent significance: light-harvesting efficiency (LHE), electron injection free energy (ΔGinject), and reorganization energy. The determined HOMO energy levels are observed to be lower than the redox potential, indicating that the suggested dyes possess the capability to acquire electrons from redox and successfully undergo dye regeneration. Furthermore, the LUMO of the dyes exhibits a more significant negative energy level in comparison to the conduction band of TiO2. Thus, it demonstrates that the transfer of electric charge from the LUMO level to TiO2 is thermodynamically favorable. The more considerable negative ΔGinject value obtained by calculation suggests that Dye-1 may have a higher ability to inject charge.

Keywords

Supporting Institution

No specific grant for this research was given by funding organizations in the public, private, or nonprofit sectors.

Thanks

The author expresses gratitude to anonymous reviewers for their insightful comments.

References

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Details

Primary Language

English

Subjects

Atomic and Molecular Physics

Journal Section

Research Article

Early Pub Date

May 29, 2024

Publication Date

September 1, 2024

Submission Date

September 25, 2023

Acceptance Date

February 1, 2024

Published in Issue

Year 2024 Volume: 37 Number: 3

APA
Ayaz, M., & Erdoğdu, Y. (2024). A DFT/TD-DFT Study on Pyridine-Anchored Schiff Base Molecules for DSSC Applications. Gazi University Journal of Science, 37(3), 1480-1496. https://doi.org/10.35378/gujs.1365988
AMA
1.Ayaz M, Erdoğdu Y. A DFT/TD-DFT Study on Pyridine-Anchored Schiff Base Molecules for DSSC Applications. Gazi University Journal of Science. 2024;37(3):1480-1496. doi:10.35378/gujs.1365988
Chicago
Ayaz, Melike, and Yusuf Erdoğdu. 2024. “A DFT TD-DFT Study on Pyridine-Anchored Schiff Base Molecules for DSSC Applications”. Gazi University Journal of Science 37 (3): 1480-96. https://doi.org/10.35378/gujs.1365988.
EndNote
Ayaz M, Erdoğdu Y (September 1, 2024) A DFT/TD-DFT Study on Pyridine-Anchored Schiff Base Molecules for DSSC Applications. Gazi University Journal of Science 37 3 1480–1496.
IEEE
[1]M. Ayaz and Y. Erdoğdu, “A DFT/TD-DFT Study on Pyridine-Anchored Schiff Base Molecules for DSSC Applications”, Gazi University Journal of Science, vol. 37, no. 3, pp. 1480–1496, Sept. 2024, doi: 10.35378/gujs.1365988.
ISNAD
Ayaz, Melike - Erdoğdu, Yusuf. “A DFT TD-DFT Study on Pyridine-Anchored Schiff Base Molecules for DSSC Applications”. Gazi University Journal of Science 37/3 (September 1, 2024): 1480-1496. https://doi.org/10.35378/gujs.1365988.
JAMA
1.Ayaz M, Erdoğdu Y. A DFT/TD-DFT Study on Pyridine-Anchored Schiff Base Molecules for DSSC Applications. Gazi University Journal of Science. 2024;37:1480–1496.
MLA
Ayaz, Melike, and Yusuf Erdoğdu. “A DFT TD-DFT Study on Pyridine-Anchored Schiff Base Molecules for DSSC Applications”. Gazi University Journal of Science, vol. 37, no. 3, Sept. 2024, pp. 1480-96, doi:10.35378/gujs.1365988.
Vancouver
1.Melike Ayaz, Yusuf Erdoğdu. A DFT/TD-DFT Study on Pyridine-Anchored Schiff Base Molecules for DSSC Applications. Gazi University Journal of Science. 2024 Sep. 1;37(3):1480-96. doi:10.35378/gujs.1365988

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