Optical analysis of TlInS{sub 2x}Se{sub 2(1−x)} mixed crystals
Journal Article
·
· Journal of Applied Physics
- Department of Material Science and Engineering, Cankaya University, Ankara 06810 (Turkey)
The ellipsometry measurements were carried out on TlInS{sub 2x}Se{sub 2(1−x)} mixed crystals in the spectral range of 1.5–6.0 eV at room temperature. The refractive index, extinction coefficient, real and imaginary parts of dielectric function were found as a result of ellipsometric measurements. The energies of interband transitions (critical point energies) of the TlInS{sub 2x}Se{sub 2(1−x)} mixed crystals were obtained by means of the second derivative of the real and imaginary parts of dielectric function. The variation of the critical point energies with the isomorphic anion substitution that is sulfur for selenium atoms was established.
- OSTI ID:
- 22275681
- Journal Information:
- Journal of Applied Physics, Vol. 115, Issue 3; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
- Country of Publication:
- United States
- Language:
- English
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