ISSN print edition: 0366-6352
ISSN electronic edition: 1336-9075
Registr. No.: MK SR 9/7
Influence of the donor and conjugation at D–π–A organic sensitizers for dye-sensitized solar cells: a first principle study
Steffi Grace Suresh Elias, Tamilarasu Sivalingam, and Prakasam Madhu
PG & Research Department of Physics, Gonzaga College of Arts and Science for Women, Krishnagiri, India
Received: 1 June 2020 Accepted: 11 July 2020
In this study, we designed perylene-based organic dye for D–π–A architecture. First, screening the well electron-rich and electron-deficient donor and π-spacer group for efficient dye sensitizer for DSSCs have been simulated using DFT and TD-DFT methods. The theoretical results have shown that the LUMO and HOMO energy levels of the design dyes can ensure a positive effect on the process of electron injection and dye regeneration. The main factors of short-circuit current density influence the light harvesting efficiency and the electron injection rate. On the other hand, electron dipole moment is controlled by the open circuit photovoltage, which improves higher-efficiency photovoltaic devices. The calculated results of the design dye reveal that dye D3 can be used as a potential sensitizer for DSSCs.
Keywords: Perylene; Dye sensitizer; Density functional theory; Light harvesting efficiency; UV–visible absorption spectra
Full paper is available at www.springerlink.com.
Chemical Papers 75 (1) 197–203 (2021)