Characterization of microstructural defects in melt grown ZnO single crystals

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F11%3A10104072" target="_blank" >RIV/00216208:11320/11:10104072 - isvavai.cz</a>

Výsledek na webu

<a href="http://jap.aip.org/resource/1/japiau/v109/i6/p063516_s1" target="_blank" >http://jap.aip.org/resource/1/japiau/v109/i6/p063516_s1</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/1.3559264" target="_blank" >10.1063/1.3559264</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Characterization of microstructural defects in melt grown ZnO single crystals

Popis výsledku v původním jazyce

Various nominally undoped, hydrothermally or melt grown (MG) ZnO single crystals have been investigated by standard positron lifetime measurements. Furthermore, optical transmission measurements and structural characterizations have been performed; the content of hydrogen in the bound state was determined by nuclear reaction analysis. A positron lifetime of 165-167 ps, measured for a brownish MG ZnO sample containing (0.30 +-0.03) at.-% of bound hydrogen, matches perfectly the value found for colorlessMG ZnO crystals. The edge shift, observed in the "blue light domain" of the optical absorption for the former sample with respect to the latter samples, is estimated to be 0.70 eV, and found equal to a value reported previously. The possible role of zincinterstitials is considered and discussed. Microstructure analysis by X-ray diffraction and transmission electron microscopy revealed the presence of stacking faults in MG crystals in a high concentration, which suggests these defects to

Název v anglickém jazyce

Characterization of microstructural defects in melt grown ZnO single crystals

Popis výsledku anglicky

Various nominally undoped, hydrothermally or melt grown (MG) ZnO single crystals have been investigated by standard positron lifetime measurements. Furthermore, optical transmission measurements and structural characterizations have been performed; the content of hydrogen in the bound state was determined by nuclear reaction analysis. A positron lifetime of 165-167 ps, measured for a brownish MG ZnO sample containing (0.30 +-0.03) at.-% of bound hydrogen, matches perfectly the value found for colorlessMG ZnO crystals. The edge shift, observed in the "blue light domain" of the optical absorption for the former sample with respect to the latter samples, is estimated to be 0.70 eV, and found equal to a value reported previously. The possible role of zincinterstitials is considered and discussed. Microstructure analysis by X-ray diffraction and transmission electron microscopy revealed the presence of stacking faults in MG crystals in a high concentration, which suggests these defects to

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

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Projekt

—

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2011

Kód důvěrnosti údajů

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

Název periodika

Journal of Applied Physics

ISSN

0021-8979

e-ISSN

—

Svazek periodika

109

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

063516, 1-9

Kód UT WoS článku

000289149900034

EID výsledku v databázi Scopus

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