THE HYDROGEN PLASMA DOPING OF ZnO THIN FILMS AND NANOPARTICLES

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21460%2F18%3A00362778" target="_blank" >RIV/68407700:21460/18:00362778 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378271:_____/18:00496526

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

THE HYDROGEN PLASMA DOPING OF ZnO THIN FILMS AND NANOPARTICLES

Popis výsledku v původním jazyce

The optical setup based on the double grating monochromator equipped with fiber coupled LEDs and the photomultiplier has been optimized for the photoluminescence spectroscopy of the highly scattering thin films in the spectral range 300-750 nm. The photoluminescence study has been applied on the hydrogen and oxygen plasma treated, nominally undoped (intrinsic) ZnO aligned nanocolumns grown by hydrothermal process. Water wettability study revealed that the hydrogenated ZnO nanocolumns are highly hydrophobic with surface contact angle about 100 degrees decreasing below 20 degrees after the plasma oxidation (hydrophilic surface). Photoluminescence spectroscopy showed that after plasma hydrogenation, the exciton related emission band centered at the wavelength 375 nm was partly deteriorated but fully recovered after the subsequent plasma oxidation. Therefore, the exciton related photoluminescence is influenced significantly by the plasma treatment and it correlates with free electron concentration.

Název v anglickém jazyce

THE HYDROGEN PLASMA DOPING OF ZnO THIN FILMS AND NANOPARTICLES

Popis výsledku anglicky

The optical setup based on the double grating monochromator equipped with fiber coupled LEDs and the photomultiplier has been optimized for the photoluminescence spectroscopy of the highly scattering thin films in the spectral range 300-750 nm. The photoluminescence study has been applied on the hydrogen and oxygen plasma treated, nominally undoped (intrinsic) ZnO aligned nanocolumns grown by hydrothermal process. Water wettability study revealed that the hydrogenated ZnO nanocolumns are highly hydrophobic with surface contact angle about 100 degrees decreasing below 20 degrees after the plasma oxidation (hydrophilic surface). Photoluminescence spectroscopy showed that after plasma hydrogenation, the exciton related emission band centered at the wavelength 375 nm was partly deteriorated but fully recovered after the subsequent plasma oxidation. Therefore, the exciton related photoluminescence is influenced significantly by the plasma treatment and it correlates with free electron concentration.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

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

Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název statě ve sborníku

NANOCON 2017 Conference Proceedings

ISBN

978-80-87294-81-9

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

57-62

Název nakladatele

Tanger Ltd.

Místo vydání

Ostrava

Místo konání akce

Brno

Datum konání akce

18. 10. 2017

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000452823300008