Temperature-dependent tuning of band gap of Fe3O4 nanoparticles for optoelectronic applications

Date

2024-04-01

Author

Delice, S.
Isik, M.
Hasanlı, Nızamı

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We have investigated structural, morphological and temperature dependent absorption characteristics of Fe3O4 nanoparticles. X-ray diffraction pattern exhibited six diffraction peaks belonging to the cubic phase structure with lattice parameter of a = 8.1602 Å. Spectral variation of absorption coefficient were utilized to achieve Tauc and spectral derivative analyses providing the band gap of the Fe3O4 at varying temperature. The band gap of Fe3O4 nanoparticles was found around 2.08 eV at 300 K and around 2.14 eV at 10 K. The band gap variation with applied temperatures between 10 and 300 K were also investigated using Varshni relation.

Subject Keywords

Fe3O4, Nanoparticles, Optical properties, Oxides

URI

https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85185837246&origin=inward
https://hdl.handle.net/11511/108974

Journal

Chemical Physics Letters

DOI

https://doi.org/10.1016/j.cplett.2024.141139

Collections

Department of Physics, Article

Citation Formats

S. Delice, M. Isik, and N. Hasanlı, “Temperature-dependent tuning of band gap of Fe3O4 nanoparticles for optoelectronic applications,” Chemical Physics Letters, vol. 840, pp. 0–0, 2024, Accessed: 00, 2024. [Online]. Available: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85185837246&origin=inward.