Near-edge optical properties of layered tin sulfide (selenide) crystals

Zalamai Victor; Tiron Andrew; Rusu Emil; Monaico Eduard; Syrbu Nicolae

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ZALAMAI, Victor, TIRON, Andrew, RUSU, Emil, MONAICO, Eduard, SYRBU, Nicolae. Near-edge optical properties of layered tin sulfide (selenide) crystals. In: IFMBE Proceedings: . 4th International Conference on Nanotechnologies and Biomedical Engineering, Ed. 4, 18-21 septembrie 2019, Chişinău. Switzerland: Springer Nature Switzerland AG, 2020, Ediția 4, Vol.77, pp. 117-120. ISBN 978-303031865-9. ISSN 16800737. DOI: https://doi.org/10.1007/978-3-030-31866-6_25

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IFMBE Proceedings
Ediția 4, Vol.77, 2020

Conferința "Conference on Nanotechnologies and Biomedical Engineering"
4, Chişinău, Moldova, 18-21 septembrie 2019

Near-edge optical properties of layered tin sulfide (selenide) crystals

DOI:https://doi.org/10.1007/978-3-030-31866-6_25

Pag. 117-120

Zalamai Victor¹, Tiron Andrew¹, Rusu Emil², Monaico Eduard¹, Syrbu Nicolae¹

¹ Technical University of Moldova,
² Institute of the Electronic Engineering and Nanotechnologies "D. Ghitu"

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: 29 octombrie 2020

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Rezumat

Absorption (K), reflection (R) and wavelength modulated transmission (ΔT/Δλ) spectra in SnS, SnS₂ and SnSe crystals were investigated in temperature range from 300 to 10 K. Excitonic states were discovered in all investigated compounds. Parameters of observed excitons and character of electron transitions participating in absorption edge formation were determined. Optical anisotropy in interband gap minimum was investigated.