Studie fotoluminiscence z horkých center ZnS:Mn nanočástic pomocí optického blízkého pole

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F08%3APU73140" target="_blank" >RIV/00216305:26220/08:PU73140 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Near-field study of hot spot photoluminescence decay in ZnS:Mn nanoparticles

Popis výsledku v původním jazyce

The local spatial distribution of photoluminescence due to the creation of hot luminescence centers was measured in the optical near-field by Scanning near-field optical microscope at emission peaks of materials (lambda =595nm), which is due to the luminescence of Mn2+ in ZnS. The excitation bandgap of ZnS forms exitons, and these excitons get the center of Mn2+ through nonradiation dominates, by means of transition of 4T1 - 6A1 luminescence. This spectrum is evidence that Mn2+ has been incorporated into the ZnS nanoparticles. In comparison with the bulk ZnS:Mn phosphors these nanoparticles have clearly higher luminescent efficiency with its luminescent decay time at least 4 orders of magnitude slower. It means that the oscillator intensity of luminescent centers in ZnS:Mn nanocrystal enhances at least 4 orders of magnitude than that in corresponding bulk ZnS:Mn. The local spatial distribution of photoluminescence due to the creation of hot luminescence centers was measured in the opti

Název v anglickém jazyce

Near-field study of hot spot photoluminescence decay in ZnS:Mn nanoparticles

Popis výsledku anglicky

The local spatial distribution of photoluminescence due to the creation of hot luminescence centers was measured in the optical near-field by Scanning near-field optical microscope at emission peaks of materials (lambda =595nm), which is due to the luminescence of Mn2+ in ZnS. The excitation bandgap of ZnS forms exitons, and these excitons get the center of Mn2+ through nonradiation dominates, by means of transition of 4T1 - 6A1 luminescence. This spectrum is evidence that Mn2+ has been incorporated into the ZnS nanoparticles. In comparison with the bulk ZnS:Mn phosphors these nanoparticles have clearly higher luminescent efficiency with its luminescent decay time at least 4 orders of magnitude slower. It means that the oscillator intensity of luminescent centers in ZnS:Mn nanocrystal enhances at least 4 orders of magnitude than that in corresponding bulk ZnS:Mn. The local spatial distribution of photoluminescence due to the creation of hot luminescence centers was measured in the opti

Druh

D - Stať ve sborníku

CEP obor

JA - Elektronika a optoelektronika, elektrotechnika

OECD FORD obor

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Projekt

<a href="/cs/project/GA102%2F07%2F0113" target="_blank" >GA102/07/0113: Diagnostika Schottkyho a studenoemisních katod pomocí elektronického šumu</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2008

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Materials Structure and Micromechanics of Fracture V

ISBN

978-0-87849-469-9

ISSN

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e-ISSN

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Počet stran výsledku

4

Strana od-do

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Název nakladatele

ttp Trans Tech Publications

Místo vydání

Zurich, Switzerland

Místo konání akce

Brno

Datum konání akce

27. 6. 2007

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

000253516900055