Archive: 2015 - Moldavian Journal of the Physical Sciences

20 Nov 2015

2015
V. 14
1-2
(p.61 - 68)

Preparation and optical properties of lamellar GaSe-ZnSe nanocomposites

CZU: 536.421.5+535

Authors:

Caraman, Mihail; Untila, Dumitru; Canţer, Valeriu; Evtodiev, Igor; Caraman, Iuliana; Sușu, Oana; Leontie, Liviu

Summary:

ZnSe-GaSe nanocomposite plates photoluminescent in a photon energy range of 1.80−2.64 eV were obtained via exposing GaSe single-crystal plates to a Zn-vapor heat treatment at temperatures of 673−873 K. The photoluminescence spectrum is dominated by the self-activated emission band of ZnSe with a maximum at 2.04 eV. The average size of the ZnSe crystallites is ~45 nm. The absorption spectrum of the composite consists of two regions characteristic of direct optical transitions in GaSe crystals with a band gap of 1.99 eV and ZnSe crystallites with a band gap of 2.56 eV at room temperature.

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BibTeX

@article{ibn_43390,
author = {Caraman, M.I. and Untila, D.A. and Canţer, V.G. and Evtodiev, I.A. and Caraman, I.M. and Sușu, O. and Leontie, L.},
title = {Preparation and optical properties of lamellar GaSe-ZnSe nanocomposites},
journal = {Moldavian Journal of the Physical Sciences},
year = {2015},
volume = {14 (1-2)},
pages = {61-68},
month = {Nov},
abstract = {(EN) ZnSe-GaSe nanocomposite plates photoluminescent in a photon energy range of 1.80−2.64 eV were obtained via exposing GaSe single-crystal plates to a Zn-vapor heat treatment at temperatures of 673−873 K. The photoluminescence spectrum is dominated by the self-activated emission band of ZnSe with a maximum at 2.04 eV. The average size of the ZnSe crystallites is ~45 nm. The absorption spectrum of the composite consists of two regions characteristic of direct optical transitions in GaSe crystals with a band gap of 1.99 eV and ZnSe crystallites with a band gap of 2.56 eV at room temperature.  },
url = {https://ibn.idsi.md/vizualizare_articol/43390},
}

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<dc:description xml:lang='en'>ZnSe-GaSe nanocomposite plates photoluminescent in a photon energy range of 1.80−2.64 eV were obtained via exposing GaSe single-crystal plates to a Zn-vapor heat treatment at temperatures of 673−873 K. The photoluminescence spectrum is dominated by the self-activated emission band of ZnSe with a maximum at 2.04 eV. The average size of the ZnSe crystallites is ~45 nm. The absorption spectrum of the composite consists of two regions characteristic of direct optical transitions in GaSe crystals with a band gap of 1.99 eV and ZnSe crystallites with a band gap of 2.56 eV at room temperature.  </dc:description>
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“ ... ”

SM ISO690:2012

CARAMAN, Mihail; UNTILA, Dumitru; KANTSER, Valeriu; EVTODIEV, Igor; CARAMAN, Iuliana; SUSU, Oana; LEONTIE, Liviu. Preparation and optical properties of lamellar GaSe-ZnSe nanocomposites. In: Moldavian Journal of the Physical Sciences. 2015, nr. 1-2(14), pp. 61-68. ISSN 1810-648X.