Room-temperature gas sensors based on gallium nitride nanoparticles

Basant Chitara; Dattatray J. Late; S. B. Krupanidhi; C. N.R. Rao

doi:10.1016/j.ssc.2010.08.007

Room-temperature gas sensors based on gallium nitride nanoparticles

Basant Chitara, Dattatray J. Late, S. B. Krupanidhi, C. N.R. Rao

Research output: Contribution to journal › Article › peer-review

58 Scopus citations

Abstract

Room-temperature sensing characteristics for H₂, ethanol, NH₃, H₂S and water have been investigated with thick-film sensors based on GaN nanoparticles, prepared by a simple chemical route. In general, GaN nanoparticles exhibit satisfactory sensor properties for these gases and vapors even at room temperature. The sensitivity for ethanol is found to be highest, the sensitivity and recovery times being smallest. Gas sensor properties of GaN seem to be related to intrinsic defects, which act as sorption sites for the gas molecules.

Original language	English
Pages (from-to)	2053-2056
Number of pages	4
Journal	Solid State Communications
Volume	150
Issue number	41-42
DOIs	https://doi.org/10.1016/j.ssc.2010.08.007
State	Published - 1 Nov 2010
Externally published	Yes

Keywords

A. GaN
B. Nanoparticles
E. Sensor

ASJC Scopus subject areas

General Chemistry
Condensed Matter Physics
Materials Chemistry

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10.1016/j.ssc.2010.08.007

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title = "Room-temperature gas sensors based on gallium nitride nanoparticles",

abstract = "Room-temperature sensing characteristics for H2, ethanol, NH3, H2S and water have been investigated with thick-film sensors based on GaN nanoparticles, prepared by a simple chemical route. In general, GaN nanoparticles exhibit satisfactory sensor properties for these gases and vapors even at room temperature. The sensitivity for ethanol is found to be highest, the sensitivity and recovery times being smallest. Gas sensor properties of GaN seem to be related to intrinsic defects, which act as sorption sites for the gas molecules.",

keywords = "A. GaN, B. Nanoparticles, E. Sensor",

author = "Basant Chitara and Late, {Dattatray J.} and Krupanidhi, {S. B.} and Rao, {C. N.R.}",

note = "Funding Information: The author D.J. Late would like to thank DST for the Postdoctoral fellowship on Nanoscience and Technology.",

year = "2010",

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doi = "10.1016/j.ssc.2010.08.007",

language = "English",

volume = "150",

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journal = "Solid State Communications",

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T1 - Room-temperature gas sensors based on gallium nitride nanoparticles

AU - Chitara, Basant

AU - Late, Dattatray J.

AU - Krupanidhi, S. B.

AU - Rao, C. N.R.

N1 - Funding Information: The author D.J. Late would like to thank DST for the Postdoctoral fellowship on Nanoscience and Technology.

PY - 2010/11/1

Y1 - 2010/11/1

N2 - Room-temperature sensing characteristics for H2, ethanol, NH3, H2S and water have been investigated with thick-film sensors based on GaN nanoparticles, prepared by a simple chemical route. In general, GaN nanoparticles exhibit satisfactory sensor properties for these gases and vapors even at room temperature. The sensitivity for ethanol is found to be highest, the sensitivity and recovery times being smallest. Gas sensor properties of GaN seem to be related to intrinsic defects, which act as sorption sites for the gas molecules.

AB - Room-temperature sensing characteristics for H2, ethanol, NH3, H2S and water have been investigated with thick-film sensors based on GaN nanoparticles, prepared by a simple chemical route. In general, GaN nanoparticles exhibit satisfactory sensor properties for these gases and vapors even at room temperature. The sensitivity for ethanol is found to be highest, the sensitivity and recovery times being smallest. Gas sensor properties of GaN seem to be related to intrinsic defects, which act as sorption sites for the gas molecules.

KW - A. GaN

KW - B. Nanoparticles

KW - E. Sensor

UR - http://www.scopus.com/inward/record.url?scp=77957265905&partnerID=8YFLogxK

U2 - 10.1016/j.ssc.2010.08.007

DO - 10.1016/j.ssc.2010.08.007

M3 - Article

AN - SCOPUS:77957265905

SN - 0038-1098

VL - 150

SP - 2053

EP - 2056

JO - Solid State Communications

JF - Solid State Communications

IS - 41-42

ER -

Room-temperature gas sensors based on gallium nitride nanoparticles

Abstract

Keywords

ASJC Scopus subject areas

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