Diffusivity of Hydrogen in ZnO Single Crystal

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F12%3A10127761" target="_blank" >RIV/00216208:11320/12:10127761 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.4028/www.scientific.net/DDF.326-328.459" target="_blank" >http://dx.doi.org/10.4028/www.scientific.net/DDF.326-328.459</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4028/www.scientific.net/DDF.326-328.459" target="_blank" >10.4028/www.scientific.net/DDF.326-328.459</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Diffusivity of Hydrogen in ZnO Single Crystal

Popis výsledku v původním jazyce

Hydrogen diffusivity in ZnO (0001) single crystal was investigated using electrical resistometry and nuclear reaction analysis (NRA). ZnO crystals were covered with a thin Pd over-layer and electrochemically charged with hydrogen. The net concentration of hydrogen determined by NRA was found to be in a reasonable agreement with the value estimated from the transported charge using the Faraday's law. The hydrogen diffusion coefficient in ZnO was estimated from in-situ electrical resistivity measurements.Moreover, NRA investigations revealed existence of a subsurface layer with very high concentration of hydrogen (up to 40 at.%). Typical surface modification observed on hydrogen loaded crystal by light microscope indicates hydrogen-induced plastic deformation realized by a slip in the c-direction. Open-volume defects introduced by hydrogen-induced plastic deformation trap diffusing hydrogen and cause an enhancement of hydrogen concentration in the deformed subsurface layer.

Název v anglickém jazyce

Diffusivity of Hydrogen in ZnO Single Crystal

Popis výsledku anglicky

Hydrogen diffusivity in ZnO (0001) single crystal was investigated using electrical resistometry and nuclear reaction analysis (NRA). ZnO crystals were covered with a thin Pd over-layer and electrochemically charged with hydrogen. The net concentration of hydrogen determined by NRA was found to be in a reasonable agreement with the value estimated from the transported charge using the Faraday's law. The hydrogen diffusion coefficient in ZnO was estimated from in-situ electrical resistivity measurements.Moreover, NRA investigations revealed existence of a subsurface layer with very high concentration of hydrogen (up to 40 at.%). Typical surface modification observed on hydrogen loaded crystal by light microscope indicates hydrogen-induced plastic deformation realized by a slip in the c-direction. Open-volume defects introduced by hydrogen-induced plastic deformation trap diffusing hydrogen and cause an enhancement of hydrogen concentration in the deformed subsurface layer.

Druh

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

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

—

Projekt

<a href="/cs/project/GAP108%2F11%2F0958" target="_blank" >GAP108/11/0958: Výzkum bodových defektů v ZnO a studium jejich interakce s vodíkem a dusíkem</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název periodika

Diffusion and Defect Data. Pt A Defect and Diffusion Forum

ISSN

1012-0386

e-ISSN

—

Svazek periodika

326-328

Číslo periodika v rámci svazku

April, 2012

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

6

Strana od-do

459-464

Kód UT WoS článku

000309370400079

EID výsledku v databázi Scopus

—