Ultraviolet sensor with fast response characteristics based on an AgNW/ZnO bi-layer
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Jeon, Mun-Bae | - |
dc.contributor.author | Kwak, Yeon Hwa | - |
dc.contributor.author | Ju, Byeong-Kwon | - |
dc.contributor.author | Kim, Kunnyun | - |
dc.date.accessioned | 2021-08-30T16:51:21Z | - |
dc.date.available | 2021-08-30T16:51:21Z | - |
dc.date.created | 2021-06-19 | - |
dc.date.issued | 2020-08-15 | - |
dc.identifier.issn | 0924-4247 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/53762 | - |
dc.description.abstract | We demonstrate an ultraviolet (UV) sensor with fast response characteristics based on an AgNW/ZnO bi-layer. This UV sensor is a surface acoustic wave (SAW)-based sensor fabricated using a 128 degrees YX black lithium niobate substrate, which is a piezoelectric in nature. This sensor, which is a two-port SAW resonator, was manufactured by fabricating interdigitated electrodes with a wavelength of 16.4 mu m and depositing UV sensing layers such as ZnO, Sn/ZnO, and AgNWIZnO. Among these sensing layers, the frequency response characteristics were found to be improved in the bi-layer structure. In addition, the AgNWIZnO-based sensor showed a significant improvement in response and recovery times. These results contributed to rapid oxygen adsorption on the ZnO surface due to the large oxygen contact area that can attributed to the AgNW's 3D mesh structure and the compensation of the internal electron trap center due to the contact of the metal-semiconductor. The proposed sensor with the metal-semiconductor bi-layer structure based on AgNW nanomaterials showed the fastest response characteristics compared to previous SAW UV sensors. (C) 2020 Elsevier B.V. All rights reserved. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCIENCE SA | - |
dc.subject | GAS SENSOR | - |
dc.subject | FILMS | - |
dc.title | Ultraviolet sensor with fast response characteristics based on an AgNW/ZnO bi-layer | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Ju, Byeong-Kwon | - |
dc.identifier.doi | 10.1016/j.sna.2020.112044 | - |
dc.identifier.scopusid | 2-s2.0-85085840828 | - |
dc.identifier.wosid | 000564275100009 | - |
dc.identifier.bibliographicCitation | SENSORS AND ACTUATORS A-PHYSICAL, v.311 | - |
dc.relation.isPartOf | SENSORS AND ACTUATORS A-PHYSICAL | - |
dc.citation.title | SENSORS AND ACTUATORS A-PHYSICAL | - |
dc.citation.volume | 311 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalResearchArea | Instruments & Instrumentation | - |
dc.relation.journalWebOfScienceCategory | Engineering, Electrical & Electronic | - |
dc.relation.journalWebOfScienceCategory | Instruments & Instrumentation | - |
dc.subject.keywordPlus | GAS SENSOR | - |
dc.subject.keywordPlus | FILMS | - |
dc.subject.keywordAuthor | Surface acoustic wave | - |
dc.subject.keywordAuthor | Silver nanowire | - |
dc.subject.keywordAuthor | Zinc oxide | - |
dc.subject.keywordAuthor | Ultraviolet | - |
dc.subject.keywordAuthor | Response characteristics | - |
dc.subject.keywordAuthor | Acoustoelectric effect | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
145 Anam-ro, Seongbuk-gu, Seoul, 02841, Korea+82-2-3290-2963
COPYRIGHT © 2021 Korea University. All Rights Reserved.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.