TiO2 Nano Flowers Based EGFET Sensor for pH Sensing
In this study, pH sensors were successfully fabricated on a fluorine-doped tin oxide substrate and grown via hydrothermal methods for 8 h for pH sensing characteristics. The morphology was obtained by high-resolution scanning electron microscopy and showed randomly oriented flower-like nanostructure...
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| Veröffentlicht in: | Coatings (Basel) 2019-04, Vol.9 (4), p.251 |
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| creator | Yang, Chih-Chiang Chen, Kuan-Yu Su, Yan-Kuin |
| description | In this study, pH sensors were successfully fabricated on a fluorine-doped tin oxide substrate and grown via hydrothermal methods for 8 h for pH sensing characteristics. The morphology was obtained by high-resolution scanning electron microscopy and showed randomly oriented flower-like nanostructures. The TiO2 nanoflower pH sensors were measured over a pH range of 2–12. Results showed a high sensitivity of the TiO2 nano-flowers pH sensor, 2.7 (μA)1/2/pH, and a linear relationship between IDS and pH (regression of 0.9991). The relationship between voltage reference and pH displayed a sensitivity of a 46 mV/pH and a linear regression of 0.9989. The experimental result indicated that a flower-like TiO2 nanostructure extended gate field effect transistor (EGFET) pH sensor effectively detected the pH value. |
| doi_str_mv | 10.3390/coatings9040251 |
| format | Article |
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The morphology was obtained by high-resolution scanning electron microscopy and showed randomly oriented flower-like nanostructures. The TiO2 nanoflower pH sensors were measured over a pH range of 2–12. Results showed a high sensitivity of the TiO2 nano-flowers pH sensor, 2.7 (μA)1/2/pH, and a linear relationship between IDS and pH (regression of 0.9991). The relationship between voltage reference and pH displayed a sensitivity of a 46 mV/pH and a linear regression of 0.9989. The experimental result indicated that a flower-like TiO2 nanostructure extended gate field effect transistor (EGFET) pH sensor effectively detected the pH value.</description><identifier>ISSN: 2079-6412</identifier><identifier>EISSN: 2079-6412</identifier><identifier>DOI: 10.3390/coatings9040251</identifier><language>eng</language><publisher>Basel: MDPI AG</publisher><subject>Chemical vapor deposition ; Electrodes ; Field effect transistors ; Fluorine ; Hydrogen ; Metal oxides ; Morphology ; Nanostructure ; Organic chemicals ; Regression analysis ; Scanning electron microscopy ; Semiconductor devices ; Sensitivity ; Sensors ; Substrates ; Tin oxides ; Titanium dioxide ; Transistors</subject><ispartof>Coatings (Basel), 2019-04, Vol.9 (4), p.251</ispartof><rights>2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). 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The morphology was obtained by high-resolution scanning electron microscopy and showed randomly oriented flower-like nanostructures. The TiO2 nanoflower pH sensors were measured over a pH range of 2–12. Results showed a high sensitivity of the TiO2 nano-flowers pH sensor, 2.7 (μA)1/2/pH, and a linear relationship between IDS and pH (regression of 0.9991). The relationship between voltage reference and pH displayed a sensitivity of a 46 mV/pH and a linear regression of 0.9989. The experimental result indicated that a flower-like TiO2 nanostructure extended gate field effect transistor (EGFET) pH sensor effectively detected the pH value.</description><subject>Chemical vapor deposition</subject><subject>Electrodes</subject><subject>Field effect transistors</subject><subject>Fluorine</subject><subject>Hydrogen</subject><subject>Metal oxides</subject><subject>Morphology</subject><subject>Nanostructure</subject><subject>Organic chemicals</subject><subject>Regression analysis</subject><subject>Scanning electron microscopy</subject><subject>Semiconductor devices</subject><subject>Sensitivity</subject><subject>Sensors</subject><subject>Substrates</subject><subject>Tin oxides</subject><subject>Titanium dioxide</subject><subject>Transistors</subject><issn>2079-6412</issn><issn>2079-6412</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNpdkM1LAzEQxYMoWGrPXgOe12YmH5sctfRDKPZgPYfsbla21E1Ntoj_vbH1IA48ZgZ-vAePkFtg95wbNq2DG7r-LRkmGEq4ICNkpSmUALz8c1-TSUo7lscA12BGhG-7DdJn1we62IdPHxN9dMk3dL5czLf0xfcpRNpmHVanL6fckKvW7ZOf_O4xec3sbFWsN8un2cO6qDmwocDSOImqKitsARrjhWfcgQAtpVK-AlcKKaQSRmsFHsqmMmgQ60aoWhnkY3J39j3E8HH0abC7cIx9jrQoheZouNaZmp6pOoaUom_tIXbvLn5ZYPanHPuvHP4N5uhU8g</recordid><startdate>20190401</startdate><enddate>20190401</enddate><creator>Yang, Chih-Chiang</creator><creator>Chen, Kuan-Yu</creator><creator>Su, Yan-Kuin</creator><general>MDPI AG</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>JG9</scope><scope>KB.</scope><scope>PDBOC</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><orcidid>https://orcid.org/0000-0002-4020-9103</orcidid></search><sort><creationdate>20190401</creationdate><title>TiO2 Nano Flowers Based EGFET Sensor for pH Sensing</title><author>Yang, Chih-Chiang ; 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The morphology was obtained by high-resolution scanning electron microscopy and showed randomly oriented flower-like nanostructures. The TiO2 nanoflower pH sensors were measured over a pH range of 2–12. Results showed a high sensitivity of the TiO2 nano-flowers pH sensor, 2.7 (μA)1/2/pH, and a linear relationship between IDS and pH (regression of 0.9991). The relationship between voltage reference and pH displayed a sensitivity of a 46 mV/pH and a linear regression of 0.9989. The experimental result indicated that a flower-like TiO2 nanostructure extended gate field effect transistor (EGFET) pH sensor effectively detected the pH value.</abstract><cop>Basel</cop><pub>MDPI AG</pub><doi>10.3390/coatings9040251</doi><orcidid>https://orcid.org/0000-0002-4020-9103</orcidid><oa>free_for_read</oa></addata></record> |
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| source | MDPI - Multidisciplinary Digital Publishing Institute; EZB-FREE-00999 freely available EZB journals; Alma/SFX Local Collection |
| subjects | Chemical vapor deposition Electrodes Field effect transistors Fluorine Hydrogen Metal oxides Morphology Nanostructure Organic chemicals Regression analysis Scanning electron microscopy Semiconductor devices Sensitivity Sensors Substrates Tin oxides Titanium dioxide Transistors |
| title | TiO2 Nano Flowers Based EGFET Sensor for pH Sensing |
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