Bilayer indium gallium zinc oxide electrolyte-gated field-effect transistor for biosensor platform with high reliability
DC Field | Value | Language |
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dc.contributor.author | Son, Hyun Woo | - |
dc.contributor.author | Park, Ju Hyun | - |
dc.contributor.author | Chae, Myung-Sic | - |
dc.contributor.author | Kim, Bo-Hyun | - |
dc.contributor.author | Kim, Tae Geun | - |
dc.date.accessioned | 2021-08-30T21:28:51Z | - |
dc.date.available | 2021-08-30T21:28:51Z | - |
dc.date.created | 2021-06-18 | - |
dc.date.issued | 2020-06-01 | - |
dc.identifier.issn | 0925-4005 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/55066 | - |
dc.description.abstract | The electrolyte-gated indium gallium zinc oxide field-effect transistor (IGZO-EGFET) has advantages for use in biosensors; e.g., it is label-free and has a high sensitivity, low cost, and low power consumption. However, the reliability of IGZO-EGFET under various conditions has not been proven. In this study, we demonstrate a bilayer IGZO-EGFET with high reliability and reproducibility under various pH and buffer conditions regardless of the surface functionalization. The bilayer of IGZO developed in situ by controlling the O-2 pressure during deposition has a varying number of O vacancy-related trap sites. The top layer having less O vacancies provides a self-passivation effect, whereas the bottom layer with more O vacancies acts as the active layer of the device. The bilayer IGZO-EGFET exhibits not only high chemical stability but also very lithe pH-hysteresis upon cyclic variation of the pH. Moreover, it exhibits a reliable and reproducible signal in phosphate buffer solutions with different concentrations, even after surface functionalization. The biotin-functionalized bilayer IGZO-EGFET exhibits a selective sensitivity for streptavidin, with a linear relationship of 10.7 mV/dec. The proposed bilayer IGZO-EGFET structure is expected to be used as a platform for various biosensing devices. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCIENCE SA | - |
dc.subject | DENSITY-OF-STATES | - |
dc.subject | VOLTAGE | - |
dc.subject | GLUCOSE | - |
dc.subject | LAYER | - |
dc.title | Bilayer indium gallium zinc oxide electrolyte-gated field-effect transistor for biosensor platform with high reliability | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kim, Tae Geun | - |
dc.identifier.doi | 10.1016/j.snb.2020.127955 | - |
dc.identifier.scopusid | 2-s2.0-85081243619 | - |
dc.identifier.wosid | 000526109000011 | - |
dc.identifier.bibliographicCitation | SENSORS AND ACTUATORS B-CHEMICAL, v.312 | - |
dc.relation.isPartOf | SENSORS AND ACTUATORS B-CHEMICAL | - |
dc.citation.title | SENSORS AND ACTUATORS B-CHEMICAL | - |
dc.citation.volume | 312 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Electrochemistry | - |
dc.relation.journalResearchArea | Instruments & Instrumentation | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Analytical | - |
dc.relation.journalWebOfScienceCategory | Electrochemistry | - |
dc.relation.journalWebOfScienceCategory | Instruments & Instrumentation | - |
dc.subject.keywordPlus | DENSITY-OF-STATES | - |
dc.subject.keywordPlus | VOLTAGE | - |
dc.subject.keywordPlus | GLUCOSE | - |
dc.subject.keywordPlus | LAYER | - |
dc.subject.keywordAuthor | Field-effect transistors | - |
dc.subject.keywordAuthor | Oxide semiconductor | - |
dc.subject.keywordAuthor | pH sensing | - |
dc.subject.keywordAuthor | Biosensor | - |
dc.subject.keywordAuthor | Reliability | - |
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