Archive: 2008 - Moldavian Journal of the Physical Sciences

05 Oct 2008

2008
V. 7
4
(p.466 - 470)

Low-energy ion-beam bombardment for metal oxide nanowire surface cleaning and modification

Authors:

Dmitriev, Serghei

Summary:

The paper presents results of study of the SnO2 nanowire chemoresistor treatment by means of low-energy Ne ion-beam bombardment. SnO2 nanowires were obtained by means of vapor-solid method at the temperature 900°C. Ti/Au (20/500 nm) electrical contacts to individual nanowires were deposited via consequent PVD deposition through the shadow mask under high vacuum conditions. Current versus voltage characteristics were measured in the range -10 to 10 volts both in high vacuum (P = 1x10-6 Torr) and in the oxygen presence (1x10-4 Torr). Cleaning and modification of nanostructure surface in situ was performed through the series of Ne bombardment cycles at the 275°C and Ne partial pressure PNe = 1x10-6 Torr. Established experimentally optimal Ne ion current has amounted to 1.15x10-4 A. Electrical conductance and gas sensing performance changing due to the NW interaction with ion beam were used to control ion bombardment effect. It was established that conductivity is increased by two orders and superficially modified NW response to hydrogen with oxygen background is also higher.

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<cfAbstr cfLangCode='EN' cfTrans='o'>The paper presents results of study of the SnO2 nanowire chemoresistor treatment by 

means of low-energy Ne 
 ion-beam bombardment. SnO2 nanowires were obtained by means 
of vapor-solid method at the temperature 900°C. Ti/Au (20/500 nm) electrical contacts to individual nanowires were deposited via consequent PVD deposition through the shadow mask 
under high vacuum conditions.  
Current versus voltage characteristics were measured in the range -10 to  10 volts both 
in high vacuum (P = 1x10-6
 Torr) and in the oxygen presence (1x10-4
 Torr). 
Cleaning and modification of nanostructure surface  in situ was performed through the 
series of Ne 
 bombardment cycles at the 275°C and Ne partial pressure PNe = 1x10-6
 Torr. 
Established experimentally optimal Ne 
 ion current has amounted to 1.15x10-4
 A.  
Electrical conductance and gas sensing performance changing due to the NW interaction with ion beam were used to control ion bombardment effect. It was established that conductivity is increased by two orders and superficially modified NW response to hydrogen 
with oxygen background is also higher.  
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BibTeX

@article{ibn_3949,
author = {Dmitriev, S.},
title = {Low-energy ion-beam bombardment for 
metal oxide nanowire surface cleaning and modification},
journal = {Moldavian Journal of the Physical Sciences},
year = {2008},
volume = {7 (4)},
pages = {466-470},
month = {Oct},
abstract = {(EN) The paper presents results of study of the SnO2 nanowire chemoresistor treatment by 

means of low-energy Ne 
 ion-beam bombardment. SnO2 nanowires were obtained by means 
of vapor-solid method at the temperature 900°C. Ti/Au (20/500 nm) electrical contacts to individual nanowires were deposited via consequent PVD deposition through the shadow mask 
under high vacuum conditions.  
Current versus voltage characteristics were measured in the range -10 to  10 volts both 
in high vacuum (P = 1x10-6
 Torr) and in the oxygen presence (1x10-4
 Torr). 
Cleaning and modification of nanostructure surface  in situ was performed through the 
series of Ne 
 bombardment cycles at the 275°C and Ne partial pressure PNe = 1x10-6
 Torr. 
Established experimentally optimal Ne 
 ion current has amounted to 1.15x10-4
 A.  
Electrical conductance and gas sensing performance changing due to the NW interaction with ion beam were used to control ion bombardment effect. It was established that conductivity is increased by two orders and superficially modified NW response to hydrogen 
with oxygen background is also higher.  
 },
url = {https://ibn.idsi.md/vizualizare_articol/3949},
}

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means of low-energy Ne 
 ion-beam bombardment. SnO2 nanowires were obtained by means 
of vapor-solid method at the temperature 900°C. Ti/Au (20/500 nm) electrical contacts to individual nanowires were deposited via consequent PVD deposition through the shadow mask 
under high vacuum conditions.  
Current versus voltage characteristics were measured in the range -10 to  10 volts both 
in high vacuum (P = 1x10-6
 Torr) and in the oxygen presence (1x10-4
 Torr). 
Cleaning and modification of nanostructure surface  in situ was performed through the 
series of Ne 
 bombardment cycles at the 275°C and Ne partial pressure PNe = 1x10-6
 Torr. 
Established experimentally optimal Ne 
 ion current has amounted to 1.15x10-4
 A.  
Electrical conductance and gas sensing performance changing due to the NW interaction with ion beam were used to control ion bombardment effect. It was established that conductivity is increased by two orders and superficially modified NW response to hydrogen 
with oxygen background is also higher.  
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Dublin Core

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<dc:creator>Dmitriev, S.</dc:creator>
<dc:date>2008-10-05</dc:date>
<dc:description xml:lang='en'>The paper presents results of study of the SnO2 nanowire chemoresistor treatment by 

means of low-energy Ne 
 ion-beam bombardment. SnO2 nanowires were obtained by means 
of vapor-solid method at the temperature 900°C. Ti/Au (20/500 nm) electrical contacts to individual nanowires were deposited via consequent PVD deposition through the shadow mask 
under high vacuum conditions.  
Current versus voltage characteristics were measured in the range -10 to  10 volts both 
in high vacuum (P = 1x10-6
 Torr) and in the oxygen presence (1x10-4
 Torr). 
Cleaning and modification of nanostructure surface  in situ was performed through the 
series of Ne 
 bombardment cycles at the 275°C and Ne partial pressure PNe = 1x10-6
 Torr. 
Established experimentally optimal Ne 
 ion current has amounted to 1.15x10-4
 A.  
Electrical conductance and gas sensing performance changing due to the NW interaction with ion beam were used to control ion bombardment effect. It was established that conductivity is increased by two orders and superficially modified NW response to hydrogen 
with oxygen background is also higher.  
 </dc:description>
<dc:source>Moldavian Journal of the Physical Sciences 7 (4) 466-470</dc:source>
<dc:title>Low-energy ion-beam bombardment for 
metal oxide nanowire surface cleaning and modification</dc:title>
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“ ... ”

SM ISO690:2012

DMITRIEV, Serghei. Low-energy ion-beam bombardment for metal oxide nanowire surface cleaning and modification. In: Moldavian Journal of the Physical Sciences. 2008, nr. 4(7), pp. 466-470. ISSN 1810-648X.