Archive: 2009 - Moldavian Journal of the Physical Sciences

05 Sep 2009

2009
V. 8
3-4
(p.325 - 331)

Metal oxide based nanostructure engineering: electrical and gas sensitive properties of structurally modified SnO2 nanowires

Authors:

Dmitriev, Serghei

Summary:

The paper presents results of the research aimed at the engineering of nanostructures (NSs). SnO2 nanowires (NWs) were grown via vapor-solid mechanism at a synthesis temperature of 900°С in a modified set-up allowing the NS morphology be encoded in a programmable way along its length. The Ti/Au (20/500 nm) electrical contacts to individual NWs were deposited via consequent PVD vacuum deposition process to obtain gas sensitive chemiresistors. Electrical properties and gas-sensing performance of the obtained monocrystalline NSs with a modified shape were investigated using hydrogen and oxygen gases. It was established that structurally modified NWs, due to the presence of narrow segments, exhibit better gas-sensitive characteristics in comparison with straight NWs. Obtained results are discussed from the positions of single-crystal “neck” formation in NSs and their influence on transport properties of NWs. 1. Introduction

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way along its length. The Ti/Au (20/500 nm) electrical contacts to individual NWs were deposited via consequent PVD vacuum deposition process to obtain gas sensitive chemiresistors. 
Electrical properties and gas-sensing performance of the obtained monocrystalline NSs with 
a modified shape were investigated using hydrogen and oxygen gases. It was established that 
structurally modified NWs, due to the presence of narrow segments, exhibit better gas-sensitive 
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BibTeX

@article{ibn_4170,
author = {Dmitriev, S.},
title = {Metal oxide based nanostructure engineering: 
electrical and gas sensitive properties of 
structurally modified SnO2 nanowires 
},
journal = {Moldavian Journal of the Physical Sciences},
year = {2009},
volume = {8 (3-4)},
pages = {325-331},
month = {Sep},
abstract = {(EN) The paper presents results of the research aimed at the engineering of nanostructures 

(NSs). SnO2 nanowires (NWs) were grown via vapor-solid mechanism at a synthesis temperature of 900°С in a modified set-up allowing the NS morphology be encoded in a programmable 
way along its length. The Ti/Au (20/500 nm) electrical contacts to individual NWs were deposited via consequent PVD vacuum deposition process to obtain gas sensitive chemiresistors. 
Electrical properties and gas-sensing performance of the obtained monocrystalline NSs with 
a modified shape were investigated using hydrogen and oxygen gases. It was established that 
structurally modified NWs, due to the presence of narrow segments, exhibit better gas-sensitive 
characteristics in comparison with straight NWs. Obtained results are discussed from the positions 

of single-crystal “neck” formation in NSs and their influence on transport properties of NWs. 
 

1. Introduction },
url = {https://ibn.idsi.md/vizualizare_articol/4170},
}

DataCite

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electrical and gas sensitive properties of 
structurally modified SnO2 nanowires 
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way along its length. The Ti/Au (20/500 nm) electrical contacts to individual NWs were deposited via consequent PVD vacuum deposition process to obtain gas sensitive chemiresistors. 
Electrical properties and gas-sensing performance of the obtained monocrystalline NSs with 
a modified shape were investigated using hydrogen and oxygen gases. It was established that 
structurally modified NWs, due to the presence of narrow segments, exhibit better gas-sensitive 
characteristics in comparison with straight NWs. Obtained results are discussed from the positions 

of single-crystal “neck” formation in NSs and their influence on transport properties of NWs. 
 

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Dublin Core

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<dc:date>2009-09-05</dc:date>
<dc:description xml:lang='en'>The paper presents results of the research aimed at the engineering of nanostructures 

(NSs). SnO2 nanowires (NWs) were grown via vapor-solid mechanism at a synthesis temperature of 900°С in a modified set-up allowing the NS morphology be encoded in a programmable 
way along its length. The Ti/Au (20/500 nm) electrical contacts to individual NWs were deposited via consequent PVD vacuum deposition process to obtain gas sensitive chemiresistors. 
Electrical properties and gas-sensing performance of the obtained monocrystalline NSs with 
a modified shape were investigated using hydrogen and oxygen gases. It was established that 
structurally modified NWs, due to the presence of narrow segments, exhibit better gas-sensitive 
characteristics in comparison with straight NWs. Obtained results are discussed from the positions 

of single-crystal “neck” formation in NSs and their influence on transport properties of NWs. 
 

1. Introduction </dc:description>
<dc:source>Moldavian Journal of the Physical Sciences 8 (3-4) 325-331</dc:source>
<dc:title>Metal oxide based nanostructure engineering: 
electrical and gas sensitive properties of 
structurally modified SnO2 nanowires 
</dc:title>
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“ ... ”

SM ISO690:2012

DMITRIEV, Serghei. Metal oxide based nanostructure engineering: electrical and gas sensitive properties of structurally modified SnO2 nanowires . In: Moldavian Journal of the Physical Sciences. 2009, nr. 3-4(8), pp. 325-331. ISSN 1810-648X.