Origin of green luminescence in hydrothermally grown ZnO single crystals

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F15%3A10315699" target="_blank" >RIV/00216208:11320/15:10315699 - isvavai.cz</a>

Alternative codes found

RIV/68378271:_____/15:00449051

Result on the web

<a href="http://dx.doi.org/10.1063/1.4922944" target="_blank" >http://dx.doi.org/10.1063/1.4922944</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/1.4922944" target="_blank" >10.1063/1.4922944</a>

Result language

angličtina

Original language name

Origin of green luminescence in hydrothermally grown ZnO single crystals

Original language description

Combining photoluminescence and positron annihilation studies of hydrothermally grown ZnO crystals with stoichiometry varied by controlled annealing enabled us to clarify the origin of green luminescence. It was found that green luminescence in ZnO has multiple origins and consists of a band at 2.3(1) eV due to recombination of electrons of the conduction band by zinc vacancy acceptors coupled with hydrogen and a band at 2.47(2) eV related to oxygen vacancies. The as-grown ZnO crystals contain zinc vacancies associated with hydrogen and exhibit a green luminescence at 2.3(1) eV. Annealing in Zn vapor removed zinc vacancies and introduced oxygen vacancies. This led to disappearance of the green luminescence band at 2.3(1) eV and appearance of a green emission at higher energy of 2.47(2) eV. Moreover, the color of the crystal was changed from colorless to dark red. In contrast, annealing of the as-grown crystal in Cd vapor did not remove zinc vacancies and did not cause any significant c

Czech name

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Czech description

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Type

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

CEP classification

BM - Solid-state physics and magnetism

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

S - Specificky vyzkum na vysokych skolach

Publication year

2015

Confidentiality

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

Name of the periodical

Applied Physics Letters

ISSN

0003-6951

e-ISSN

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Volume of the periodical

106

Issue of the periodical within the volume

25

Country of publishing house

US - UNITED STATES

Number of pages

4

Pages from-to

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UT code for WoS article

000357036600012

EID of the result in the Scopus database

2-s2.0-84934999451