Abstract
Absorption, reflection and wavelength modulated reflection spectra were investigated in ZnAl2Se4 crystals. The energy positions of ground and excited states for three excitonic series (A, B and C) 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.
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© 2016 Springer Science+Business Media Singapore
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Tiron, A., Syrbu, N., Zalamai, V. (2016). Optical Properties of ZnAl2Se4 Crystals. In: Sontea, V., Tiginyanu, I. (eds) 3rd International Conference on Nanotechnologies and Biomedical Engineering. IFMBE Proceedings, vol 55. Springer, Singapore. https://doi.org/10.1007/978-981-287-736-9_16
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DOI: https://doi.org/10.1007/978-981-287-736-9_16
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Publisher Name: Springer, Singapore
Print ISBN: 978-981-287-735-2
Online ISBN: 978-981-287-736-9
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