Composite metal oxide thin film based impedometric humidity sensors
[Display omitted] •Pure and composite thin films of ZnO and SnO2 are prepared by sol-gel based spin coating.•Impedometric humidity sensing studies of the proposed pure and composite sensors.•ZnO rich composite sensors show better sensor response, sensitivity and transient characteristics. Composite...
Gespeichert in:
| Veröffentlicht in: | Sensors and actuators. B, Chemical Chemical, 2019-12, Vol.301, p.127084, Article 127084 |
|---|---|
| Hauptverfasser: | , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | |
|---|---|
| container_issue | |
| container_start_page | 127084 |
| container_title | Sensors and actuators. B, Chemical |
| container_volume | 301 |
| creator | Velumani, M. Meher, S.R. Alex, Z.C. |
| description | [Display omitted]
•Pure and composite thin films of ZnO and SnO2 are prepared by sol-gel based spin coating.•Impedometric humidity sensing studies of the proposed pure and composite sensors.•ZnO rich composite sensors show better sensor response, sensitivity and transient characteristics.
Composite metal oxide based thin film based sensors are proposed to eradicate the problems faced by the single phase materials. The composite thin films of ZnO and SnO2 are expected to have significantly enhanced humidity sensing properties. In the present work, pure and composite thin films of ZnO and SnO2 are prepared by sol-gel based spin coating. The structural, optical and morphological properties of the films were studied by X-ray diffraction, Ultraviolet-Visible absorption spectroscopy and the scanning electron microscopy. The composite films with different compositions of ZnO and SnO2 phase were studied for their impedometric humidity sensing characteristics. Among the proposed sensors, the zinc rich composite sensors exhibit the maximum sensor response of 95% and sensitivity of 8.6 ± 0.5 kΩ/RH%. Further, the composite metal oxide based humidity sensors exhibit better transient characteristics and significantly lower hysteresis compared to their pure counterparts. |
| doi_str_mv | 10.1016/j.snb.2019.127084 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_journals_2327318680</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><els_id>S0925400519312833</els_id><sourcerecordid>2327318680</sourcerecordid><originalsourceid>FETCH-LOGICAL-c362t-c709a1e83d0dda85a2c344ad8c383ece320aaa36879ae0579dc76b530ea74ff73</originalsourceid><addsrcrecordid>eNp9kE1LxDAQQIMouK7-AG8Bz62TpG1SPEnxCxa86Dlkkymbsm1q0hX339ulnj3N5b2Z4RFyyyBnwKr7Lk_DNufA6pxxCao4IyumpMgESHlOVlDzMisAyktylVIHAIWoYEWaJvRjSH5C2uNk9jT8eId02vmBtn7f061J6KjvR3RhJqK3dHfovfPTkSYcUojpmly0Zp_w5m-uyefz00fzmm3eX96ax01mRcWnzEqoDUMlHDhnVGm4FUVhnLJCCbQoOBhjRKVkbRBKWTsrq20pAI0s2laKNblb9o4xfB0wTboLhzjMJzUXXAqmKgUzxRbKxpBSxFaP0fcmHjUDfWqlOz230qdWemk1Ow-Lg_P73x6jTtbjYNH5iHbSLvh_7F9AxHHk</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2327318680</pqid></control><display><type>article</type><title>Composite metal oxide thin film based impedometric humidity sensors</title><source>Access via ScienceDirect (Elsevier)</source><creator>Velumani, M. ; Meher, S.R. ; Alex, Z.C.</creator><creatorcontrib>Velumani, M. ; Meher, S.R. ; Alex, Z.C.</creatorcontrib><description>[Display omitted]
•Pure and composite thin films of ZnO and SnO2 are prepared by sol-gel based spin coating.•Impedometric humidity sensing studies of the proposed pure and composite sensors.•ZnO rich composite sensors show better sensor response, sensitivity and transient characteristics.
Composite metal oxide based thin film based sensors are proposed to eradicate the problems faced by the single phase materials. The composite thin films of ZnO and SnO2 are expected to have significantly enhanced humidity sensing properties. In the present work, pure and composite thin films of ZnO and SnO2 are prepared by sol-gel based spin coating. The structural, optical and morphological properties of the films were studied by X-ray diffraction, Ultraviolet-Visible absorption spectroscopy and the scanning electron microscopy. The composite films with different compositions of ZnO and SnO2 phase were studied for their impedometric humidity sensing characteristics. Among the proposed sensors, the zinc rich composite sensors exhibit the maximum sensor response of 95% and sensitivity of 8.6 ± 0.5 kΩ/RH%. Further, the composite metal oxide based humidity sensors exhibit better transient characteristics and significantly lower hysteresis compared to their pure counterparts.</description><identifier>ISSN: 0925-4005</identifier><identifier>EISSN: 1873-3077</identifier><identifier>DOI: 10.1016/j.snb.2019.127084</identifier><language>eng</language><publisher>Lausanne: Elsevier B.V</publisher><subject>Composites ; Humidity ; Humidity sensing ; Impedance spectroscopy ; Metal oxides ; Optical properties ; Sensors ; Sol-gel processes ; Sol-gel spin coating ; Spin coating ; Thin films ; Tin dioxide ; Zinc oxide</subject><ispartof>Sensors and actuators. B, Chemical, 2019-12, Vol.301, p.127084, Article 127084</ispartof><rights>2019 Elsevier B.V.</rights><rights>Copyright Elsevier Science Ltd. Dec 15, 2019</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c362t-c709a1e83d0dda85a2c344ad8c383ece320aaa36879ae0579dc76b530ea74ff73</citedby><cites>FETCH-LOGICAL-c362t-c709a1e83d0dda85a2c344ad8c383ece320aaa36879ae0579dc76b530ea74ff73</cites><orcidid>0000-0001-9980-5981</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.snb.2019.127084$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>315,781,785,3551,27929,27930,46000</link.rule.ids></links><search><creatorcontrib>Velumani, M.</creatorcontrib><creatorcontrib>Meher, S.R.</creatorcontrib><creatorcontrib>Alex, Z.C.</creatorcontrib><title>Composite metal oxide thin film based impedometric humidity sensors</title><title>Sensors and actuators. B, Chemical</title><description>[Display omitted]
•Pure and composite thin films of ZnO and SnO2 are prepared by sol-gel based spin coating.•Impedometric humidity sensing studies of the proposed pure and composite sensors.•ZnO rich composite sensors show better sensor response, sensitivity and transient characteristics.
Composite metal oxide based thin film based sensors are proposed to eradicate the problems faced by the single phase materials. The composite thin films of ZnO and SnO2 are expected to have significantly enhanced humidity sensing properties. In the present work, pure and composite thin films of ZnO and SnO2 are prepared by sol-gel based spin coating. The structural, optical and morphological properties of the films were studied by X-ray diffraction, Ultraviolet-Visible absorption spectroscopy and the scanning electron microscopy. The composite films with different compositions of ZnO and SnO2 phase were studied for their impedometric humidity sensing characteristics. Among the proposed sensors, the zinc rich composite sensors exhibit the maximum sensor response of 95% and sensitivity of 8.6 ± 0.5 kΩ/RH%. Further, the composite metal oxide based humidity sensors exhibit better transient characteristics and significantly lower hysteresis compared to their pure counterparts.</description><subject>Composites</subject><subject>Humidity</subject><subject>Humidity sensing</subject><subject>Impedance spectroscopy</subject><subject>Metal oxides</subject><subject>Optical properties</subject><subject>Sensors</subject><subject>Sol-gel processes</subject><subject>Sol-gel spin coating</subject><subject>Spin coating</subject><subject>Thin films</subject><subject>Tin dioxide</subject><subject>Zinc oxide</subject><issn>0925-4005</issn><issn>1873-3077</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNp9kE1LxDAQQIMouK7-AG8Bz62TpG1SPEnxCxa86Dlkkymbsm1q0hX339ulnj3N5b2Z4RFyyyBnwKr7Lk_DNufA6pxxCao4IyumpMgESHlOVlDzMisAyktylVIHAIWoYEWaJvRjSH5C2uNk9jT8eId02vmBtn7f061J6KjvR3RhJqK3dHfovfPTkSYcUojpmly0Zp_w5m-uyefz00fzmm3eX96ax01mRcWnzEqoDUMlHDhnVGm4FUVhnLJCCbQoOBhjRKVkbRBKWTsrq20pAI0s2laKNblb9o4xfB0wTboLhzjMJzUXXAqmKgUzxRbKxpBSxFaP0fcmHjUDfWqlOz230qdWemk1Ow-Lg_P73x6jTtbjYNH5iHbSLvh_7F9AxHHk</recordid><startdate>20191212</startdate><enddate>20191212</enddate><creator>Velumani, M.</creator><creator>Meher, S.R.</creator><creator>Alex, Z.C.</creator><general>Elsevier B.V</general><general>Elsevier Science Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7SR</scope><scope>7TB</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>FR3</scope><scope>JG9</scope><scope>L7M</scope><orcidid>https://orcid.org/0000-0001-9980-5981</orcidid></search><sort><creationdate>20191212</creationdate><title>Composite metal oxide thin film based impedometric humidity sensors</title><author>Velumani, M. ; Meher, S.R. ; Alex, Z.C.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c362t-c709a1e83d0dda85a2c344ad8c383ece320aaa36879ae0579dc76b530ea74ff73</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Composites</topic><topic>Humidity</topic><topic>Humidity sensing</topic><topic>Impedance spectroscopy</topic><topic>Metal oxides</topic><topic>Optical properties</topic><topic>Sensors</topic><topic>Sol-gel processes</topic><topic>Sol-gel spin coating</topic><topic>Spin coating</topic><topic>Thin films</topic><topic>Tin dioxide</topic><topic>Zinc oxide</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Velumani, M.</creatorcontrib><creatorcontrib>Meher, S.R.</creatorcontrib><creatorcontrib>Alex, Z.C.</creatorcontrib><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Sensors and actuators. B, Chemical</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Velumani, M.</au><au>Meher, S.R.</au><au>Alex, Z.C.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Composite metal oxide thin film based impedometric humidity sensors</atitle><jtitle>Sensors and actuators. B, Chemical</jtitle><date>2019-12-12</date><risdate>2019</risdate><volume>301</volume><spage>127084</spage><pages>127084-</pages><artnum>127084</artnum><issn>0925-4005</issn><eissn>1873-3077</eissn><abstract>[Display omitted]
•Pure and composite thin films of ZnO and SnO2 are prepared by sol-gel based spin coating.•Impedometric humidity sensing studies of the proposed pure and composite sensors.•ZnO rich composite sensors show better sensor response, sensitivity and transient characteristics.
Composite metal oxide based thin film based sensors are proposed to eradicate the problems faced by the single phase materials. The composite thin films of ZnO and SnO2 are expected to have significantly enhanced humidity sensing properties. In the present work, pure and composite thin films of ZnO and SnO2 are prepared by sol-gel based spin coating. The structural, optical and morphological properties of the films were studied by X-ray diffraction, Ultraviolet-Visible absorption spectroscopy and the scanning electron microscopy. The composite films with different compositions of ZnO and SnO2 phase were studied for their impedometric humidity sensing characteristics. Among the proposed sensors, the zinc rich composite sensors exhibit the maximum sensor response of 95% and sensitivity of 8.6 ± 0.5 kΩ/RH%. Further, the composite metal oxide based humidity sensors exhibit better transient characteristics and significantly lower hysteresis compared to their pure counterparts.</abstract><cop>Lausanne</cop><pub>Elsevier B.V</pub><doi>10.1016/j.snb.2019.127084</doi><orcidid>https://orcid.org/0000-0001-9980-5981</orcidid></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0925-4005 |
| ispartof | Sensors and actuators. B, Chemical, 2019-12, Vol.301, p.127084, Article 127084 |
| issn | 0925-4005 1873-3077 |
| language | eng |
| recordid | cdi_proquest_journals_2327318680 |
| source | Access via ScienceDirect (Elsevier) |
| subjects | Composites Humidity Humidity sensing Impedance spectroscopy Metal oxides Optical properties Sensors Sol-gel processes Sol-gel spin coating Spin coating Thin films Tin dioxide Zinc oxide |
| title | Composite metal oxide thin film based impedometric humidity sensors |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-14T08%3A13%3A10IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Composite%20metal%20oxide%20thin%20film%20based%20impedometric%20humidity%20sensors&rft.jtitle=Sensors%20and%20actuators.%20B,%20Chemical&rft.au=Velumani,%20M.&rft.date=2019-12-12&rft.volume=301&rft.spage=127084&rft.pages=127084-&rft.artnum=127084&rft.issn=0925-4005&rft.eissn=1873-3077&rft_id=info:doi/10.1016/j.snb.2019.127084&rft_dat=%3Cproquest_cross%3E2327318680%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=2327318680&rft_id=info:pmid/&rft_els_id=S0925400519312833&rfr_iscdi=true |