Hassan, H. C. and Said, S. M. and Noor, I. M. and Hasnan, M. M. I. Megat and Zakaria, R. and Ibrahim, N. M. J. Nik and Salleh, F. and Fadzallah, I. A. and Noor, N. L. Md. and Abdullah, N. (2023) Systematic correlation between ligand length, bandgap energy and Seebeck voltage of Fe-based spincrossover (SCO) metal complexes through optical characterization. Molecular Crystals and Liquid Crystals, 763 (1). pp. 1-16. ISSN 1542-1406, DOI https://doi.org/10.1080/15421406.2023.2191429.
Full text not available from this repository.Abstract
Fe-based spincrossover (SCO) molecular complexes have shown to exhibit spincrossover behavior when subjected to stimuli such as heat, light and pressure. In a previous work, solutions of Fe-based spincrossover (SCO) molecular complexes with increasing ligand length, CnH2n+1NH2 (n = 12, 14, 16) of Fe(L-12)(2)](BF4)(2), Fe(L-14)(2)](BF4)(2), and Fe(L-16)(2)](BF4)(2), have shown to produce ultrahigh Seebeck coefficients when subjected to a temperature gradient. In this work, these three compounds are dissolved in dimethyl sulfoxide (DMSO) and subjected to temperature dependent Ultraviolet-visible (UV-vis) spectrometry. This optical characterization method was used to provide a correlation between the ligand length of the SCO complex and the bandgap energy measured. Subsequently, these findings were also triangulated with the effect of the ligand length on ionic conductivity and the Seebeck voltage. This work thus provides a systematic molecular understanding of the optical and electronic characteristics of SCO complexes, which paves the way for molecular design strategies in utilization of SCO for applications such as energy conversion and sensors.
| Item Type: | Article |
|---|---|
| Funders: | Ministry of Higher Education Malaysia via the Fundamental Research Grant Scheme (FRGS/1/2020/TK0/UM/02/20), University of Malaya Student Financial Aid (UMSFA) |
| Uncontrolled Keywords: | Bandgap energy; optical; spin-crossover; spin state transition; UV-Vis spectroscopy |
| Subjects: | Q Science > QD Chemistry T Technology > TJ Mechanical engineering and machinery T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Divisions: | Faculty of Engineering > Department of Electrical Engineering Faculty of Engineering > Department of Mechanical Engineering Faculty of Science > Department of Chemistry Faculty of Science > Department of Physics |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 21 Jul 2025 07:44 |
| Last Modified: | 21 Jul 2025 07:44 |
| URI: | http://eprints.um.edu.my/id/eprint/50856 |
Actions (login required)
 |
View Item |
