Designing of fluorine-substituted benzodithiophene-based small molecules with efficient photovoltaic parameters.

Autor: Iftikhar R; Department of Chemistry, University of Agriculture, Faisalabad, 38000, Pakistan., Irshad R; Department of Chemistry, University of Agriculture, Faisalabad, 38000, Pakistan., Zahid WA; Department of Chemistry, University of Agriculture, Faisalabad, 38000, Pakistan., Akram W; Department of Chemistry, University of Agriculture, Faisalabad, 38000, Pakistan., Shehzad RA; Department of Chemistry, University of Agriculture, Faisalabad, 38000, Pakistan., Abdelmohsen SAM; Department of Physics, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh, 11671, Saudi Arabia., Alanazi MM; Department of Physics, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh, 11671, Saudi Arabia., Shahzad N; Department of Chemistry, Government College University, Faisalabad, Pakistan., Iqbal J; Department of Chemistry, University of Agriculture, Faisalabad, 38000, Pakistan. Electronic address: Javed.iqbal@uaf.edu.pk.
Jazyk: angličtina
Zdroj: Journal of molecular graphics & modelling [J Mol Graph Model] 2023 Dec; Vol. 125, pp. 108588. Date of Electronic Publication: 2023 Aug 05.
DOI: 10.1016/j.jmgm.2023.108588
Abstrakt: In this study, four hole-transporting materials (JY-M1, JY-M2, JY-M3, and JY-M4) are designed by modifying benzothiadiazole-based core with diphenylamine-based carbazole via acceptors through thiophene linkers. The designed molecules exhibited deeper HOMO energy with smaller energy gaps than the reference JY molecule which enhance their hole mobility. The absorption spectra of the JY-M1, JY-M2, JY-M3, and JY-M4 molecules are located at 380 nm to 407 nm in the gaseous phase and 397 nm to 433 nm in the solvent phase, which is red-shifted and higher than the reference molecule, demonstrating that designed molecules possess improved light absorption properties and enhanced effective hole transfer. The dipole moments of the designed molecules (14.74 D to 26.12 D) indicate a greater ability for charge separation, solubility and will be beneficial to produce multilayer films. Moreover, the results of hole reorganization energy (0.38198 eV to 0.45304 eV) and charge transfer integral (0.14315 eV to 0.14665 eV) of designing molecules show improved hole mobility and lower recombination losses compared to the JY molecule. Overall, we suggested that the structural modifications in the designed molecules contributed to their enhanced efficiency in converting light energy into electrical energy and have the potential for utilization in solar devices, paving the way for future advancements in the field of photovoltaics.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2023 Elsevier Inc. All rights reserved.)
Databáze: MEDLINE
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