Calcium Titanate Orthorhombic Perovskite-Nickel Oxide Solar-Blind UVC Photodetectors with Unprecedented Long-Term Stability Exceeding 500 Days and Their Applications to Real-Time Flame Detection
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Subin | - |
dc.contributor.author | Park, Taehyun | - |
dc.contributor.author | Hur, Jaehyun | - |
dc.contributor.author | Yoo, Hocheon | - |
dc.date.accessioned | 2023-01-21T04:40:12Z | - |
dc.date.available | 2023-01-21T04:40:12Z | - |
dc.date.created | 2023-01-18 | - |
dc.date.issued | 2022-12 | - |
dc.identifier.issn | 2330-4022 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/86750 | - |
dc.description.abstract | In recent years, the rapid increase in fire frequency has led to demands for efficient fire monitoring systems. To realize sensitive and large-area fire monitoring, flame sensing based on an ultraviolet C (UVC) photodetector can be considered as a promising approach. However, the challenges such as the high-cost process, limited selection of photoactive materials with an appropriate band gap, inefficient power consumption, stability issues, and environmental noise interference restrict the development of UVC photodetectors (PDs) for practical flame safeguard applications. Here, we demonstrate flame detection with a UVC PD based on an ultrawide band gap calcium titanate (CTO) and nickel oxide (NiO) heterostructure. The proposed PD achieves a high solar-blinded rejection ratio (at UVC light/UVA light) of 2.9 x 104, on/off switching current ratio of 120 A/A under UVC light and dark state, robust and stable operation longer than 1 year (502 days), and specific detectivity as high as 4.44 x 1011 Jones under zero-voltage bias operation. During the flame combustion, the CTO/NiO UVC PD exhibits a systematic real-time output voltage change with flame intensity variation, which opens up new possibilities for rapid and accurate fire detection. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.relation.isPartOf | ACS PHOTONICS | - |
dc.title | Calcium Titanate Orthorhombic Perovskite-Nickel Oxide Solar-Blind UVC Photodetectors with Unprecedented Long-Term Stability Exceeding 500 Days and Their Applications to Real-Time Flame Detection | - |
dc.type | Article | - |
dc.type.rims | ART | - |
dc.description.journalClass | 1 | - |
dc.identifier.wosid | 000894827100001 | - |
dc.identifier.doi | 10.1021/acsphotonics.2c01471 | - |
dc.identifier.bibliographicCitation | ACS PHOTONICS, v.9, no.12, pp.4005 - 4016 | - |
dc.description.isOpenAccess | N | - |
dc.identifier.scopusid | 2-s2.0-85143905724 | - |
dc.citation.endPage | 4016 | - |
dc.citation.startPage | 4005 | - |
dc.citation.title | ACS PHOTONICS | - |
dc.citation.volume | 9 | - |
dc.citation.number | 12 | - |
dc.contributor.affiliatedAuthor | Lee, Subin | - |
dc.contributor.affiliatedAuthor | Park, Taehyun | - |
dc.contributor.affiliatedAuthor | Hur, Jaehyun | - |
dc.contributor.affiliatedAuthor | Yoo, Hocheon | - |
dc.type.docType | Article | - |
dc.subject.keywordAuthor | optical flame sensing | - |
dc.subject.keywordAuthor | solar-blind photodetector | - |
dc.subject.keywordAuthor | long-lasting durability | - |
dc.subject.keywordAuthor | oxide perovskite | - |
dc.subject.keywordAuthor | ultrawide band gap semiconductor | - |
dc.subject.keywordPlus | SOLID-STATE | - |
dc.subject.keywordPlus | OXYGEN | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | GEL | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Optics | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Optics | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.relation.journalWebOfScienceCategory | Physics, Condensed Matter | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
1342, Seongnam-daero, Sujeong-gu, Seongnam-si, Gyeonggi-do, Republic of Korea(13120)031-750-5114
COPYRIGHT 2020 Gachon 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.