Characterization of H-plasma treated ZnO crystals by positron annihilation and atomic force microscopy

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F12%3A10129206" target="_blank" >RIV/00216208:11320/12:10129206 - isvavai.cz</a>

Result on the web

<a href="http://www.scientific.net/DDF.331.113" target="_blank" >http://www.scientific.net/DDF.331.113</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4028/www.scientific.net/DDF.331.113" target="_blank" >10.4028/www.scientific.net/DDF.331.113</a>

Result language

angličtina

Original language name

Characterization of H-plasma treated ZnO crystals by positron annihilation and atomic force microscopy

Original language description

Nominally undoped, hydrothermally grown ZnO single crystals have been investigated before and after exposure to remote H-plasma. Defect characterization has been made by two complementary techniques of positron annihilation: positron lifetime spectroscopy and coincidence Doppler broadening. The high-momentum parts of the annihilation photon momentum distribution have been calculated from first principles in order to assist in defect identification. The positron annihilation results are supplemented by Atomic Force Microscopy for characterization of the crystal surface. It was found that virgin ZnO crystal contains Zn-vacancies associated with hydrogen. H-plasma treatment causes a significant reduction in concentration of these complexes. Physical mechanism of this effect is discussed in the paper.

Czech name

—

Czech description

—

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BM - Solid-state physics and magnetism

OECD FORD branch

—

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

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2012

Confidentiality

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

Name of the periodical

Defect and Diffusion Forum

ISSN

1012-0386

e-ISSN

—

Volume of the periodical

331

Issue of the periodical within the volume

19.09.2012

Country of publishing house

CH - SWITZERLAND

Number of pages

13

Pages from-to

113-125

UT code for WoS article

—

EID of the result in the Scopus database

—