Optical properties of ZnAl2Se4 crystals

Tiron Andrew; Syrbu Nicolae; Zalamai Victor

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TIRON, Andrew, SYRBU, Nicolae, ZALAMAI, Victor. Optical properties of ZnAl2Se4 crystals. In: IFMBE Proceedings: 3rd International Conference on Nanotechnologies and Biomedical Engineering, ICNBME 2015, Ed. 3, 23-26 septembrie 2015, Chişinău. Springer, 2016, Editia 3, Vol.55, pp. 68-71. ISBN 978-981287735-2. ISSN 16800737. DOI: https://doi.org/10.1007/978-981-287-736-9_16

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IFMBE Proceedings
Editia 3, Vol.55, 2016

Conferința "International Conference on Nanotechnologies and Biomedical Engineering"
3, Chişinău, Moldova, 23-26 septembrie 2015

Optical properties of ZnAl₂Se₄ crystals

DOI:https://doi.org/10.1007/978-981-287-736-9_16

Pag. 68-71

Tiron Andrew¹, Syrbu Nicolae¹, Zalamai Victor²

¹ Technical University of Moldova,
² Institute of Applied Physics, Academy of Sciences of Moldova

Proiecte:

GA 810652

Promoting smart specialization at the Technical University of Moldova by developing the field of Novel Nanomaterials for BioMedical Applications through excellence in research and twinning

Disponibil în IBN: 23 ianuarie 2023

Rezumat

Absorption, reflection and wavelength modulated reflection spectra were investigated in ZnAl₂Se₄ crystals. The energy positions of ground and excited states for three excitonic series (А, В and С) were determined. The main parameters of excitons and more precise values of energy intervals V₁(Γ₇) - C₁(Γ₆), V₂(Γ₆) - C₁(Γ₆) и V₃(Γ₇) - C₁(Γ₆) were estimated. Values of splitting due to crystal field and spinorbital interaction were calculated. Effective masses of electrons (m* C1) and holes (m*_V1, m*_V2, m*_V3) were estimated. Reflection spectra contours in excitonic region were calculated using dispersion equations.

Cuvinte-cheie
AIIB2IIIC4VI compounds, Effective masses of holes and electrons, Excitons, Wavelength modulated reflection and transmission spectra