About: Characterization of microstructural defects in melt grown ZnO single crystals

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://jap.aip.org/resource/1/japiau/v109/i6/p063516_s1
Description	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 colorless MG ZnO crystals. The edge shift, observed in the %22blue light domain%22 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 zinc interstitials 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 be responsible for the observed positron lifetime. 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 colorless MG ZnO crystals. The edge shift, observed in the %22blue light domain%22 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 zinc interstitials 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 be responsible for the observed positron lifetime. (en)
Title	Characterization of microstructural defects in melt grown ZnO single crystals Characterization of microstructural defects in melt grown ZnO single crystals (en)
skos:prefLabel	Characterization of microstructural defects in melt grown ZnO single crystals Characterization of microstructural defects in melt grown ZnO single crystals (en)
skos:notation	RIV/00216208:11320/11:10104072!RIV12-MSM-11320___
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(MSM0021620834)
http://linked.open...iv/cisloPeriodika	6
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Procházka, Ivan Kuriplach, Jan Čížek, Jakub
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Karlova v Praze / Matematicko-fyzikální fakulta
http://linked.open...dnocenehoVysledku	189979
http://linked.open...ai/riv/idVysledku	RIV/00216208:11320/11:10104072
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	single crystal; ZnO; melt grown; microstructural defects (en)
http://linked.open.../riv/klicoveSlovo	single crystal ZnO melt grown microstructural defects
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[5236291FB691]
http://linked.open...i/riv/nazevZdroje	Journal of Applied Physics
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	14 (xsd:int)
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	109
http://linked.open...iv/tvurceVysledku	Anwand, W. Brauer, G. Cowan, T. E. Djurisic, A. B. Grynszpan, R. I. Kuriplach, Jan Klemm, V. Klimm, D. Ling, C. C. Procházka, Ivan Rafaja, D. Schreiber, G. Schulz, D. Čížek, Jakub
http://linked.open...ain/vavai/riv/wos	000289149900034
http://linked.open...n/vavai/riv/zamer	Condensed Matter Physics – New Materials and Technologies
issn	0021-8979
number of pages	9 (xsd:int)
http://bibframe.org/vocab/doi	10.1063/1.3559264
http://localhost/t...ganizacniJednotka	11320

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