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Spectroscopic ellipsometry study of linear and nonlinear optical properties of NaBi(Mo0.5W0.5O4)2 crystal
Date
2024-10-01
Author
Isik, M.
Guler, I.
Hasanlı, Nızamı
Darvishov, N.H.
Metadata
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In this study, linear and nonlinear optical characteristics of NaBi(Mo0.5W0.5O4)2 crystal, a new material that may have potential for optoelectronic applications, were investigated. NaBi(Mo0.5W0.5O4)2 single crystals were grown via the Czochralski method. Two sharp and well-defined peaks were observed in the x-ray diffraction pattern. These peaks were associated with tetragonal crystal structure. The data obtained from ellipsometer measurements was matched with a suitable optical model. This allowed for the presentation of the spectral dependence of various optical parameters like refractive index, dielectric constant, optical conductivity, extinction, and absorption coefficients in the range of 1.2–5.0 eV. As a result of studying the spectral dependence of the absorption coefficient under Tauc relationship, bandgap energy of the compound was found to be 3.20 eV. Using the spectral dependence of the dielectric function, the existence of two critical points with energy values of 3.72 and 4.44 eV was revealed. The change of the refractive index in the region under the bandgap was studied using the single oscillator model. Single oscillator and dispersion energies were determined from the analysis results. Nonlinear optical parameters of NaBi(Mo0.5W0.5O4)2 crystal were also determined. With this study, the optical properties of the NaBi(Mo0.5W0.5O4)2 are presented in more detail and valuable information is presented for the potential use of the material in optoelectronic devices.
URI
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85206070935&origin=inward
https://hdl.handle.net/11511/112136
Journal
Journal of Materials Science: Materials in Electronics
DOI
https://doi.org/10.1007/s10854-024-13632-y
Collections
Department of Physics, Article
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BibTeX
M. Isik, I. Guler, N. Hasanlı, and N. H. Darvishov, “Spectroscopic ellipsometry study of linear and nonlinear optical properties of NaBi(Mo0.5W0.5O4)2 crystal,”
Journal of Materials Science: Materials in Electronics
, vol. 35, no. 28, pp. 0–0, 2024, Accessed: 00, 2024. [Online]. Available: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85206070935&origin=inward.