Effect of the Substitution of S for Se on the Optical Absorption Spectra of the Glassy Alloys Ag<sub>1.6</sub>Ga<sub>1.6</sub>Ge<sub>31.2</sub>S<sub>61.6-x</sub>Se<sub>x</sub>
<p>Optical absorption spectra of the glassy alloys Ag<sub>1.6</sub>Ga<sub>1.6</sub>Ge<sub>31.2</sub>S<sub>61.6-x</sub>Se<sub>x</sub> in the range of 400-1...
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Vasyl Stefanyk Precarpathian National University
2016-09-01
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| Series: | Фізика і хімія твердого тіла |
| Online Access: | http://journals.pu.if.ua/index.php/pcss/article/view/1436 |
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doaj-7c39299d3b75404d9360db930156ebab2020-11-25T02:21:14ZengVasyl Stefanyk Precarpathian National UniversityФізика і хімія твердого тіла1729-44282309-85892016-09-0117334234510.15330/pcss.17.3.342-3451837Effect of the Substitution of S for Se on the Optical Absorption Spectra of the Glassy Alloys Ag<sub>1.6</sub>Ga<sub>1.6</sub>Ge<sub>31.2</sub>S<sub>61.6-x</sub>Se<sub>x</sub>V. V. Halyan0A. H. Kevshyn1I. A. Ivashchenko2M. V. Shevchuk3Східноєвропейський національний університет імені Лесі Українки.Східноєвропейський національний університет імені Лесі Українки.Східноєвропейський національний університет імені Лесі Українки.Луцький національний технічний.<p>Optical absorption spectra of the glassy alloys Ag<sub>1.6</sub>Ga<sub>1.6</sub>Ge<sub>31.2</sub>S<sub>61.6-x</sub>Se<sub>x</sub> in the range of 400-1000 nm at 80 and 300 K have been investigated. It was revealed that with increasing of Se the width of the energy gap of the glasses decreases. In samples with x = 13.1, 19.7, 26.2, 32.8, 45.9, 52.5 at 80 K the photoluminescence was observed. It has the vague of peak and half-width emission band ΔE≈0,26-0,30 eV, which is characteristic for the recombination luminescence of the disordered systems. Peculiarities of the optical absorption spectra and photoluminescence are in good correlation with Mott's and Davis' model for localization energy states in the disordered systems.</p><p>Keywords: glassy alloys, optical absorption, photoluminescence.</p>http://journals.pu.if.ua/index.php/pcss/article/view/1436 |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
V. V. Halyan A. H. Kevshyn I. A. Ivashchenko M. V. Shevchuk |
| spellingShingle |
V. V. Halyan A. H. Kevshyn I. A. Ivashchenko M. V. Shevchuk Effect of the Substitution of S for Se on the Optical Absorption Spectra of the Glassy Alloys Ag<sub>1.6</sub>Ga<sub>1.6</sub>Ge<sub>31.2</sub>S<sub>61.6-x</sub>Se<sub>x</sub> Фізика і хімія твердого тіла |
| author_facet |
V. V. Halyan A. H. Kevshyn I. A. Ivashchenko M. V. Shevchuk |
| author_sort |
V. V. Halyan |
| title |
Effect of the Substitution of S for Se on the Optical Absorption Spectra of the Glassy Alloys Ag<sub>1.6</sub>Ga<sub>1.6</sub>Ge<sub>31.2</sub>S<sub>61.6-x</sub>Se<sub>x</sub> |
| title_short |
Effect of the Substitution of S for Se on the Optical Absorption Spectra of the Glassy Alloys Ag<sub>1.6</sub>Ga<sub>1.6</sub>Ge<sub>31.2</sub>S<sub>61.6-x</sub>Se<sub>x</sub> |
| title_full |
Effect of the Substitution of S for Se on the Optical Absorption Spectra of the Glassy Alloys Ag<sub>1.6</sub>Ga<sub>1.6</sub>Ge<sub>31.2</sub>S<sub>61.6-x</sub>Se<sub>x</sub> |
| title_fullStr |
Effect of the Substitution of S for Se on the Optical Absorption Spectra of the Glassy Alloys Ag<sub>1.6</sub>Ga<sub>1.6</sub>Ge<sub>31.2</sub>S<sub>61.6-x</sub>Se<sub>x</sub> |
| title_full_unstemmed |
Effect of the Substitution of S for Se on the Optical Absorption Spectra of the Glassy Alloys Ag<sub>1.6</sub>Ga<sub>1.6</sub>Ge<sub>31.2</sub>S<sub>61.6-x</sub>Se<sub>x</sub> |
| title_sort |
effect of the substitution of s for se on the optical absorption spectra of the glassy alloys ag<sub>1.6</sub>ga<sub>1.6</sub>ge<sub>31.2</sub>s<sub>61.6-x</sub>se<sub>x</sub> |
| publisher |
Vasyl Stefanyk Precarpathian National University |
| series |
Фізика і хімія твердого тіла |
| issn |
1729-4428 2309-8589 |
| publishDate |
2016-09-01 |
| description |
<p>Optical absorption spectra of the glassy alloys Ag<sub>1.6</sub>Ga<sub>1.6</sub>Ge<sub>31.2</sub>S<sub>61.6-x</sub>Se<sub>x</sub> in the range of 400-1000 nm at 80 and 300 K have been investigated. It was revealed that with increasing of Se the width of the energy gap of the glasses decreases. In samples with x = 13.1, 19.7, 26.2, 32.8, 45.9, 52.5 at 80 K the photoluminescence was observed. It has the vague of peak and half-width emission band ΔE≈0,26-0,30 eV, which is characteristic for the recombination luminescence of the disordered systems. Peculiarities of the optical absorption spectra and photoluminescence are in good correlation with Mott's and Davis' model for localization energy states in the disordered systems.</p><p>Keywords: glassy alloys, optical absorption, photoluminescence.</p> |
| url |
http://journals.pu.if.ua/index.php/pcss/article/view/1436 |
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