The optical properties of metal oxide nanorods

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

The optical properties of metal oxide nanorods

Popis výsledku v původním jazyce

The different morphological structures were visualized and analyzed by scanning electron microscopy (SEM). The crystalline configuration and the structural quality were investigated by X-ray diffraction and Raman spectroscopy. The surface properties of ZnO nanorods were examined by X-ray photoelectron spectroscopy. The defect-related photoluminescence observed as a broad band at wavelengths 550650 nm was significantly reduced after plasma hydrogenation whereas the exciton-related peak at 378 nm increased significantly. Thus, using hydrogen plasma instead of high temperature annealing, we have achieved the defect passivation at room temperature. The strong suppression of the F+related defects was observed after plasma hydrogenation using the electron paramagnetic resonance (EPR). This makes evidence for strong influence of the surface defects on the photoluminescence properties of the ZnO nanorod.

Název v anglickém jazyce

The optical properties of metal oxide nanorods

Popis výsledku anglicky

The different morphological structures were visualized and analyzed by scanning electron microscopy (SEM). The crystalline configuration and the structural quality were investigated by X-ray diffraction and Raman spectroscopy. The surface properties of ZnO nanorods were examined by X-ray photoelectron spectroscopy. The defect-related photoluminescence observed as a broad band at wavelengths 550650 nm was significantly reduced after plasma hydrogenation whereas the exciton-related peak at 378 nm increased significantly. Thus, using hydrogen plasma instead of high temperature annealing, we have achieved the defect passivation at room temperature. The strong suppression of the F+related defects was observed after plasma hydrogenation using the electron paramagnetic resonance (EPR). This makes evidence for strong influence of the surface defects on the photoluminescence properties of the ZnO nanorod.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

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