Grain Size Effects in Sensor Response of Nanostructured SnO2- and In2O3-Based Conductometric Thin Film Gas Sensor
Identifieur interne : 005376 ( Main/Repository ); précédent : 005375; suivant : 005377Grain Size Effects in Sensor Response of Nanostructured SnO2- and In2O3-Based Conductometric Thin Film Gas Sensor
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Abstract
Based on the experimental results, obtained by studying both structural and gas-sensing properties of the SnO2 and In2O3 films deposited by the spray pyrolysis method, we analyzed the influence of crystallite size on the parameters of the SnO2- and In2O3-based thin film solid-state gas sensors. For comparison, the behavior of ceramic-type gas sensors was considered as well. In particular, we examined the correlation between the grain size and parameters of conductometric-type gas sensors such as the magnitude of sensor signal, the rate of sensor response, thermal stability, and the sensitivity of sensor signal to air humidity. Findings confirmed that that grain size is one of the most important parameters of metal oxides, controlling almost all operating characteristics of the solid state gas sensors fabricated using both the ceramic and thin film technologies. However, it was shown that there is no single universal requirement for the grain size, because changes in grain size could either improve, or worsen of operating characteristics of gas sensors. Therefore, the choice of optimal grain size should be based on the detailed consideration of all possible consequences of their influence on the parameters of sensors designed.
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en" level="a">Grain Size Effects in Sensor Response of Nanostructured SnO<sub>2</sub>- and In<sub>2</sub>O<sub>3</sub>-Based Conductometric Thin Film Gas Sensor</title><author><name sortKey="Korotcenkov, G" uniqKey="Korotcenkov G">G. Korotcenkov</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Gwangju Institute of Science and Technology</s1><s2>Gwangiu</s2><s3>KOR</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>Corée du Sud</country><wicri:noRegion>Gwangju Institute of Science and Technology</wicri:noRegion></affiliation><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Technical University of Moldova</s1><s2>Chisinau</s2><s3>MDA</s3><sZ>1 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>Moldavie</country><wicri:noRegion>Technical University of Moldova</wicri:noRegion></affiliation></author><author><name sortKey="Han, S D" uniqKey="Han S">S.-D. Han</name><affiliation wicri:level="1"><inist:fA14 i1="03"><s1>Korea Institute of Energy Research</s1><s2>Daejeon</s2><s3>KOR</s3><sZ>2 aut.</sZ></inist:fA14><country>Corée du Sud</country><wicri:noRegion>Korea Institute of Energy Research</wicri:noRegion></affiliation></author><author><name sortKey="Cho, B K" uniqKey="Cho B">B. K. Cho</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Gwangju Institute of Science and Technology</s1><s2>Gwangiu</s2><s3>KOR</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>Corée du Sud</country><wicri:noRegion>Gwangju Institute of Science and Technology</wicri:noRegion></affiliation></author><author><name sortKey="Brinzari, V" uniqKey="Brinzari V">V. Brinzari</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Technical University of Moldova</s1><s2>Chisinau</s2><s3>MDA</s3><sZ>1 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>Moldavie</country><wicri:noRegion>Technical University of Moldova</wicri:noRegion></affiliation></author></titleStmt><publicationStmt><idno type="inist">10-0186204</idno><date when="2009">2009</date><idno type="stanalyst">PASCAL 10-0186204 INIST</idno><idno type="RBID">Pascal:10-0186204</idno><idno type="wicri:Area/Main/Corpus">004689</idno><idno type="wicri:Area/Main/Repository">005376</idno></publicationStmt><seriesStmt><idno type="ISSN">1040-8436</idno><title level="j" type="abbreviated">Crit. rev. solid state mater. sci.</title><title level="j" type="main">Critical reviews in solid state and materials sciences</title></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Gas sensors</term><term>Grain size</term><term>Humidity</term><term>Indium oxide</term><term>Kinetics</term><term>Nanostructures</term><term>Sheet resistivity</term><term>Size effect</term><term>Spray coatings</term><term>Spray pyrolysis</term><term>Thermal stability</term><term>Thin films</term><term>Tin oxide</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Grosseur grain</term><term>Effet dimensionnel</term><term>Capteur de gaz</term><term>Dépôt projection</term><term>Stabilité thermique</term><term>Humidité</term><term>Résistivité couche</term><term>Cinétique</term><term>Nanostructure</term><term>Oxyde d'étain</term><term>Oxyde d'indium</term><term>Couche mince</term><term>SnO2</term><term>In2O3</term><term>Pyrolyse par projection</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Based on the experimental results, obtained by studying both structural and gas-sensing properties of the SnO<sub>2</sub> and In<sub>2</sub>O<sub>3</sub> films deposited by the spray pyrolysis method, we analyzed the influence of crystallite size on the parameters of the SnO<sub>2</sub>- and In<sub>2</sub>O<sub>3</sub>-based thin film solid-state gas sensors. For comparison, the behavior of ceramic-type gas sensors was considered as well. In particular, we examined the correlation between the grain size and parameters of conductometric-type gas sensors such as the magnitude of sensor signal, the rate of sensor response, thermal stability, and the sensitivity of sensor signal to air humidity. Findings confirmed that that grain size is one of the most important parameters of metal oxides, controlling almost all operating characteristics of the solid state gas sensors fabricated using both the ceramic and thin film technologies. However, it was shown that there is no single universal requirement for the grain size, because changes in grain size could either improve, or worsen of operating characteristics of gas sensors. Therefore, the choice of optimal grain size should be based on the detailed consideration of all possible consequences of their influence on the parameters of sensors designed.</div></front></TEI><inist><standard h6="B"><pA><fA01 i1="01" i2="1"><s0>1040-8436</s0></fA01><fA02 i1="01"><s0>CCRSDA</s0></fA02><fA03 i2="1"><s0>Crit. rev. solid state mater. sci.</s0></fA03><fA05><s2>34</s2></fA05><fA06><s2>1-2</s2></fA06><fA08 i1="01" i2="1" l="ENG"><s1>Grain Size Effects in Sensor Response of Nanostructured SnO<sub>2</sub>- and In<sub>2</sub>O<sub>3</sub>-Based Conductometric Thin Film Gas Sensor</s1></fA08><fA11 i1="01" i2="1"><s1>KOROTCENKOV (G.)</s1></fA11><fA11 i1="02" i2="1"><s1>HAN (S.-D.)</s1></fA11><fA11 i1="03" i2="1"><s1>CHO (B. K.)</s1></fA11><fA11 i1="04" i2="1"><s1>BRINZARI (V.)</s1></fA11><fA14 i1="01"><s1>Gwangju Institute of Science and Technology</s1><s2>Gwangiu</s2><s3>KOR</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ></fA14><fA14 i1="02"><s1>Technical University of Moldova</s1><s2>Chisinau</s2><s3>MDA</s3><sZ>1 aut.</sZ><sZ>4 aut.</sZ></fA14><fA14 i1="03"><s1>Korea Institute of Energy Research</s1><s2>Daejeon</s2><s3>KOR</s3><sZ>2 aut.</sZ></fA14><fA20><s1>1-17</s1></fA20><fA21><s1>2009</s1></fA21><fA23 i1="01"><s0>ENG</s0></fA23><fA43 i1="01"><s1>INIST</s1><s2>16709</s2><s5>354000188549770010</s5></fA43><fA44><s0>0000</s0><s1>© 2010 INIST-CNRS. All rights reserved.</s1></fA44><fA45><s0>154 ref.</s0></fA45><fA47 i1="01" i2="1"><s0>10-0186204</s0></fA47><fA60><s1>P</s1></fA60><fA61><s0>A</s0></fA61><fA64 i1="01" i2="1"><s0>Critical reviews in solid state and materials sciences</s0></fA64><fA66 i1="01"><s0>GBR</s0></fA66><fC01 i1="01" l="ENG"><s0>Based on the experimental results, obtained by studying both structural and gas-sensing properties of the SnO<sub>2</sub> and In<sub>2</sub>O<sub>3</sub> films deposited by the spray pyrolysis method, we analyzed the influence of crystallite size on the parameters of the SnO<sub>2</sub>- and In<sub>2</sub>O<sub>3</sub>-based thin film solid-state gas sensors. For comparison, the behavior of ceramic-type gas sensors was considered as well. In particular, we examined the correlation between the grain size and parameters of conductometric-type gas sensors such as the magnitude of sensor signal, the rate of sensor response, thermal stability, and the sensitivity of sensor signal to air humidity. Findings confirmed that that grain size is one of the most important parameters of metal oxides, controlling almost all operating characteristics of the solid state gas sensors fabricated using both the ceramic and thin film technologies. However, it was shown that there is no single universal requirement for the grain size, because changes in grain size could either improve, or worsen of operating characteristics of gas sensors. 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