Characterisation of irradiation-induced defects in ZnO single crystals

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F16%3A00463306" target="_blank" >RIV/61389005:_____/16:00463306 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11320/16:10330447

Result on the web

<a href="http://dx.doi.org/10.1088/1742-6596/674/1/012014" target="_blank" >http://dx.doi.org/10.1088/1742-6596/674/1/012014</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1742-6596/674/1/012014" target="_blank" >10.1088/1742-6596/674/1/012014</a>

Result language

angličtina

Original language name

Characterisation of irradiation-induced defects in ZnO single crystals

Original language description

Positron annihilation spectroscopy (PAS) combined with optical methods was employed for characterisation of defects in the hydrothermally grown ZnO single crystals irradiated by 167 MeV Xe26+ ions to fluences ranged from 3x10(12) to 1x10(14) cm(-2). The positron lifetime (LT), Doppler broadening as well as slow-positron implantation spectroscopy (SPIS) techniques were involved. The ab-initio theoretical calculations were utilised for interpretation of LT results. The optical transmission and photoluminescence measurements were conducted, too. The virgin ZnO crystal exhibited a single component LT spectrum with a lifetime of 182 ps which is attributed to saturated positron trapping in Zn vacancies associated with hydrogen atoms unintentionally introduced into the crystal during the crystal growth. The Xe ion irradiated ZnO crystals have shown an additional component with a longer lifetime of approximate to 360 ps which comes from irradiation-induced larger defects equivalent in size to clusters of approximate to 10 to 12 vacancies. The concentrations of these clusters were estimated on the basis of combined LT and SPIS data. The PAS data were correlated with irradiation induced changes seen in the optical spectroscopy experiments.

Czech name

—

Czech description

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Type

D - Article in proceedings

CEP classification

BG - Nuclear, atomic and molecular physics, accelerators

OECD FORD branch

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Project

<a href="/en/project/GAP108%2F11%2F0958" target="_blank" >GAP108/11/0958: Investigation of point defects in ZnO and their interaction with hydrogen and nitrogen</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2016

Confidentiality

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

Article name in the collection

Journal of Physics Conference Series

ISBN

—

ISSN

1742-6588

e-ISSN

—

Number of pages

9

Pages from-to

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Publisher name

IOP Publishing

Place of publication

Bristol

Event location

Kyoto

Event date

Sep 14, 2014

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

000382077100014