Transport properties of hydrogen-terminated nanocrystalline diamond films

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F12%3A00377220" target="_blank" >RIV/68378271:_____/12:00377220 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.diamond.2011.10.021" target="_blank" >http://dx.doi.org/10.1016/j.diamond.2011.10.021</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.diamond.2011.10.021" target="_blank" >10.1016/j.diamond.2011.10.021</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Transport properties of hydrogen-terminated nanocrystalline diamond films

Popis výsledku v původním jazyce

Hydrogen-terminated nanocrystalline diamond films of different granularity are investigated by van der Pauw measurement of the resistivity and Hall effect depending on the grain size. In agreement with the observation on the hydrogenated diamond single crystals, the measured transport quantities are surface related. The room temperature resistivity strongly increases when the mean grain size at surface varies from about 400 nm down to 40 nm while the Hall concentration is only weakly dependent on the granularity and exhibits values comparable with those found in hydrogenated single crystals. Using a two-dimensional geometrical model, we show that effective resistivity is controlled by the transversal resistance of the grain boundaries. Based on the mobility?concentration relation obtained by the surface adsorbate desorption, microscopic origin of the boundary resistance is discussed.

Název v anglickém jazyce

Transport properties of hydrogen-terminated nanocrystalline diamond films

Popis výsledku anglicky

Hydrogen-terminated nanocrystalline diamond films of different granularity are investigated by van der Pauw measurement of the resistivity and Hall effect depending on the grain size. In agreement with the observation on the hydrogenated diamond single crystals, the measured transport quantities are surface related. The room temperature resistivity strongly increases when the mean grain size at surface varies from about 400 nm down to 40 nm while the Hall concentration is only weakly dependent on the granularity and exhibits values comparable with those found in hydrogenated single crystals. Using a two-dimensional geometrical model, we show that effective resistivity is controlled by the transversal resistance of the grain boundaries. Based on the mobility?concentration relation obtained by the surface adsorbate desorption, microscopic origin of the boundary resistance is discussed.

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

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

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

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název periodika

Diamond and Related Materials

ISSN

0925-9635

e-ISSN

—

Svazek periodika

24

Číslo periodika v rámci svazku

April

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

6

Strana od-do

63-68

Kód UT WoS článku

000303099700013

EID výsledku v databázi Scopus

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