Influence of precursor age on defect states in ZnO nanorods

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F20%3A00538607" target="_blank" >RIV/68378271:_____/20:00538607 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.apsusc.2020.146448" target="_blank" >https://doi.org/10.1016/j.apsusc.2020.146448</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.apsusc.2020.146448" target="_blank" >10.1016/j.apsusc.2020.146448</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Influence of precursor age on defect states in ZnO nanorods

Popis výsledku v původním jazyce

The aim of the work is to clarify the influence of the precursor age and post deposition treatment on defect states of hexagonally shaped ZnO nanorods grown by hydrothermal process. Photoluminescence, radioluminescence and thermally stimulated luminescence indicate that ZnO nanorods synthetized from aged precursors possess larger amount of defects and charge traps. Electron paramagnetic resonance (EPR) shows the dominant signal with the 1.96 g-factor together with subsidiary resonances probably coming from precursor salt residuals used during the sample growth. All samples exhibit a change of the 1.96 g-factor signal intensity after X-ray irradiation. Stepwise annealing in air at elevated temperature removes the subsidiary resonances and corresponding defects. A new EPR signal with the 2.0038 g-factor appears after the X ray irradiation, air annealing and plasma hydrogenation. It was attributed to surface defects.

Název v anglickém jazyce

Influence of precursor age on defect states in ZnO nanorods

Popis výsledku anglicky

The aim of the work is to clarify the influence of the precursor age and post deposition treatment on defect states of hexagonally shaped ZnO nanorods grown by hydrothermal process. Photoluminescence, radioluminescence and thermally stimulated luminescence indicate that ZnO nanorods synthetized from aged precursors possess larger amount of defects and charge traps. Electron paramagnetic resonance (EPR) shows the dominant signal with the 1.96 g-factor together with subsidiary resonances probably coming from precursor salt residuals used during the sample growth. All samples exhibit a change of the 1.96 g-factor signal intensity after X-ray irradiation. Stepwise annealing in air at elevated temperature removes the subsidiary resonances and corresponding defects. A new EPR signal with the 2.0038 g-factor appears after the X ray irradiation, air annealing and plasma hydrogenation. It was attributed to surface defects.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

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

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Applied Surface Science

ISSN

0169-4332

e-ISSN

—

Svazek periodika

525

Číslo periodika v rámci svazku

Sep

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

8

Strana od-do

1-8

Kód UT WoS článku

000541417300008

EID výsledku v databázi Scopus

2-s2.0-85084604595