| Conţinutul numărului revistei |
| Articolul precedent |
| Articolul urmator |
 870 1 |
| Ultima descărcare din IBN: 2018-05-17 18:35 |
 SM ISO690:2012GOGLIDZE, Tatiana, DEMENTIEV, Igor, KOVAL, Andrei, GONCEARENCO, Evghenii. Self-absorption of violet radiation in ZnO thin films produced on ZnSe crystal surfaces by isovalent substitution method. In: Journal of Luminescence, 2018, vol. 197, pp. 396-398. ISSN 0022-2313. DOI: https://doi.org/10.1016/j.jlumin.2018.01.008 |
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  Journal of Luminescence |
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| Volumul 197 / 2018 / ISSN 0022-2313 | ||||||
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| DOI:https://doi.org/10.1016/j.jlumin.2018.01.008 | ||||||
| Pag. 396-398 | ||||||
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Photoluminescence (PL) spectra of ZnO thin films produced by isovalent substitution method by means of thermal treatment of zinc selenide single crystal substrates in air are studied in 350 – 750 nm range at room temperature. Irrespective of annealing temperature (500 – 870 °C) and annealing time (20 – 120 min), PL spectra consist of a short-wavelength violet radiation with maximum localized between 396 and 423 nm and a long-wavelength yellow-orange radiation with maximum localized between 575 and 600 nm. Both PL bands are attributed to donor-acceptor (DA) pairs. It is shown that the violet PL band intensity decreases and the yellow-orange PL band intensity increases with increasing ZnO film thickness that is caused by self-absorption of the short-wavelength radiation and energy transmission to DA-pair centres of the long-wavelength radiation. |
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| Cuvinte-cheie Citrus fruits, Wavemeters, Light absorption, Metallic films, Optical films, Selenium compounds, single crystals, thin films, zinc oxide |
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