Electrical behavior of multi-walled carbon nanotube network embedded in amorphous silicon nitride

<p>Abstract</p> <p>The electrical behavior of multi-walled carbon nanotube network embedded in amorphous silicon nitride is studied by measuring the voltage and temperature dependences of the current. The microstructure of the network is investigated by cross-sectional transmission...

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Main Authors: Buiculescu Raluca, Iancu Vladimir, Konstantinidis George, Dragoman Mircea, Stavarache Ionel, Lepadatu Ana-Maria, Teodorescu Valentin, Ciurea Magdalena
Format: Article
Language:English
Published: SpringerOpen 2011-01-01
Series:Nanoscale Research Letters
Online Access:http://www.nanoscalereslett.com/content/6/1/88
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author Buiculescu Raluca
Iancu Vladimir
Konstantinidis George
Dragoman Mircea
Stavarache Ionel
Lepadatu Ana-Maria
Teodorescu Valentin
Ciurea Magdalena
author_facet Buiculescu Raluca
Iancu Vladimir
Konstantinidis George
Dragoman Mircea
Stavarache Ionel
Lepadatu Ana-Maria
Teodorescu Valentin
Ciurea Magdalena
author_sort Buiculescu Raluca
collection DOAJ
description <p>Abstract</p> <p>The electrical behavior of multi-walled carbon nanotube network embedded in amorphous silicon nitride is studied by measuring the voltage and temperature dependences of the current. The microstructure of the network is investigated by cross-sectional transmission electron microscopy. The multi-walled carbon nanotube network has an uniform spatial extension in the silicon nitride matrix. The current-voltage and resistance-temperature characteristics are both linear, proving the metallic behavior of the network. The <it>I</it>-<it>V </it>curves present oscillations that are further analyzed by computing the conductance-voltage characteristics. The conductance presents minima and maxima that appear at the same voltage for both bias polarities, at both 20 and 298 K, and that are not periodic. These oscillations are interpreted as due to percolation processes. The voltage percolation thresholds are identified with the conductance minima.</p>
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spelling doaj.art-5ef16acad6fb422c964478a91f9681a82023-09-03T03:36:40ZengSpringerOpenNanoscale Research Letters1931-75731556-276X2011-01-016188Electrical behavior of multi-walled carbon nanotube network embedded in amorphous silicon nitrideBuiculescu RalucaIancu VladimirKonstantinidis GeorgeDragoman MirceaStavarache IonelLepadatu Ana-MariaTeodorescu ValentinCiurea Magdalena<p>Abstract</p> <p>The electrical behavior of multi-walled carbon nanotube network embedded in amorphous silicon nitride is studied by measuring the voltage and temperature dependences of the current. The microstructure of the network is investigated by cross-sectional transmission electron microscopy. The multi-walled carbon nanotube network has an uniform spatial extension in the silicon nitride matrix. The current-voltage and resistance-temperature characteristics are both linear, proving the metallic behavior of the network. The <it>I</it>-<it>V </it>curves present oscillations that are further analyzed by computing the conductance-voltage characteristics. The conductance presents minima and maxima that appear at the same voltage for both bias polarities, at both 20 and 298 K, and that are not periodic. These oscillations are interpreted as due to percolation processes. The voltage percolation thresholds are identified with the conductance minima.</p>http://www.nanoscalereslett.com/content/6/1/88
spellingShingle Buiculescu Raluca
Iancu Vladimir
Konstantinidis George
Dragoman Mircea
Stavarache Ionel
Lepadatu Ana-Maria
Teodorescu Valentin
Ciurea Magdalena
Electrical behavior of multi-walled carbon nanotube network embedded in amorphous silicon nitride
Nanoscale Research Letters
title Electrical behavior of multi-walled carbon nanotube network embedded in amorphous silicon nitride
title_full Electrical behavior of multi-walled carbon nanotube network embedded in amorphous silicon nitride
title_fullStr Electrical behavior of multi-walled carbon nanotube network embedded in amorphous silicon nitride
title_full_unstemmed Electrical behavior of multi-walled carbon nanotube network embedded in amorphous silicon nitride
title_short Electrical behavior of multi-walled carbon nanotube network embedded in amorphous silicon nitride
title_sort electrical behavior of multi walled carbon nanotube network embedded in amorphous silicon nitride
url http://www.nanoscalereslett.com/content/6/1/88
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