Green light activated hydrogen sensing of nanocrystalline composite ZnO-In2O3 films at room temperature
The possibility of reducing the operating temperature of H 2 gas sensor based on ZnO-In 2 O 3 down to room temperature under green illumination is shown. It is found that sensitivity of ZnO-In 2 O 3 composite to H 2 nonmonotonically depends on the oxides’ content. The optimal ratio between the compo...
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| Veröffentlicht in: | Scientific reports 2017-09, Vol.7 (1), p.1-6, Article 12204 |
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| creator | Ilin, A. S. Ikim, M. I. Forsh, P. A. Belysheva, T. V. Martyshov, M. N. Kashkarov, P. K. Trakhtenberg, L. I. |
| description | The possibility of reducing the operating temperature of H
2
gas sensor based on ZnO-In
2
O
3
down to room temperature under green illumination is shown. It is found that sensitivity of ZnO-In
2
O
3
composite to H
2
nonmonotonically depends on the oxides’ content. The optimal ratio between the components is chosen. The new mechanism of nanocrystalline ZnO-In
2
O
3
sensor sensitivity to H
2
under illumination by green light is proposed. The mechanism considers the illumination turns the composite into nonequilibrium state and the photoconductivity change in the H
2
atmosphere is linked with alteration of nonequilibrium charge carriers recombination rate. |
| doi_str_mv | 10.1038/s41598-017-12547-5 |
| format | Article |
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2
gas sensor based on ZnO-In
2
O
3
down to room temperature under green illumination is shown. It is found that sensitivity of ZnO-In
2
O
3
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2
nonmonotonically depends on the oxides’ content. The optimal ratio between the components is chosen. The new mechanism of nanocrystalline ZnO-In
2
O
3
sensor sensitivity to H
2
under illumination by green light is proposed. The mechanism considers the illumination turns the composite into nonequilibrium state and the photoconductivity change in the H
2
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2
gas sensor based on ZnO-In
2
O
3
down to room temperature under green illumination is shown. It is found that sensitivity of ZnO-In
2
O
3
composite to H
2
nonmonotonically depends on the oxides’ content. The optimal ratio between the components is chosen. The new mechanism of nanocrystalline ZnO-In
2
O
3
sensor sensitivity to H
2
under illumination by green light is proposed. The mechanism considers the illumination turns the composite into nonequilibrium state and the photoconductivity change in the H
2
atmosphere is linked with alteration of nonequilibrium charge carriers recombination rate.</description><subject>639/766/119/1000</subject><subject>639/766/94</subject><subject>Dependence</subject><subject>Gases</subject><subject>Humanities and Social Sciences</subject><subject>Hydrogen</subject><subject>Illumination</subject><subject>Indium</subject><subject>Investigations</subject><subject>Light emitting diodes</subject><subject>Metal oxides</subject><subject>multidisciplinary</subject><subject>Oxides</subject><subject>Physics</subject><subject>Recombination</subject><subject>Science</subject><subject>Science (multidisciplinary)</subject><subject>Sensors</subject><subject>Temperature effects</subject><issn>2045-2322</issn><issn>2045-2322</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><sourceid>C6C</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNp1kU9rFTEUxQdRbKn9Aq4CbtyM5u8k2QhStBYKb6MbNyGT3JmXMpM8k0zhffumviJVMJsE7u-ce29O170l-APBTH0snAitekxkT6jgshcvunOKuegpo_Tls_dZd1nKHW5HUM2Jft2dUaWZVpSed_N1BohoCfO-IutquLcVPNoffU5zKxSIJcQZpQlFG5PLx1LtsoQIyKX1kEqogH7GXX8T6Y6hKSxrQbainNKKKqwHyLZuGd50rya7FLh8ui-6H1-_fL_61t_urm-uPt_2jgtS-5FzDWRQAxu5kFJQLzh2fhRuYlqCHz0fJur1qJRkUnLAfqASM-4nxUeF2UX36eR72MYVvINYs13MIYfV5qNJNpi_KzHszZzujRjatzLaDN4_GeT0a4NSzRqKg2WxEdJWDNG8NSRY64a--we9S1uObb1GCYEFlvhxInqiXE6lZJj-DEOweYzSnKI0LUrzO0ojmoidRKXBcYb8zPr_qgdzpaCb</recordid><startdate>20170922</startdate><enddate>20170922</enddate><creator>Ilin, A. 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2
gas sensor based on ZnO-In
2
O
3
down to room temperature under green illumination is shown. It is found that sensitivity of ZnO-In
2
O
3
composite to H
2
nonmonotonically depends on the oxides’ content. The optimal ratio between the components is chosen. The new mechanism of nanocrystalline ZnO-In
2
O
3
sensor sensitivity to H
2
under illumination by green light is proposed. The mechanism considers the illumination turns the composite into nonequilibrium state and the photoconductivity change in the H
2
atmosphere is linked with alteration of nonequilibrium charge carriers recombination rate.</abstract><cop>London</cop><pub>Nature Publishing Group UK</pub><pmid>28939822</pmid><doi>10.1038/s41598-017-12547-5</doi><tpages>6</tpages><oa>free_for_read</oa></addata></record> |
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| source | Natureオープンアクセス; DOAJ Directory of Open Access Journals; Springer Nature OA Free Journals; EZB-FREE-00999 freely available EZB journals; PubMed Central; Free Full-Text Journals in Chemistry |
| subjects | 639/766/119/1000 639/766/94 Dependence Gases Humanities and Social Sciences Hydrogen Illumination Indium Investigations Light emitting diodes Metal oxides multidisciplinary Oxides Physics Recombination Science Science (multidisciplinary) Sensors Temperature effects |
| title | Green light activated hydrogen sensing of nanocrystalline composite ZnO-In2O3 films at room temperature |
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