Attachable freezing-delayed surfaces for ultraviolet sensing using GaN photodetector at low temperature in air
DC Field | Value | Language |
---|---|---|
dc.contributor.author | So, Hongyun | - |
dc.contributor.author | Park, Woosung | - |
dc.date.accessioned | 2021-08-02T11:53:55Z | - |
dc.date.available | 2021-08-02T11:53:55Z | - |
dc.date.created | 2021-05-12 | - |
dc.date.issued | 2019-04 | - |
dc.identifier.issn | 0169-4332 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/14282 | - |
dc.description.abstract | The enhanced optical sensitivity of gallium nitride (GaN) ultraviolet (UV) photodetectors is demonstrated using attachable and hydrophobic freezing-delayed surfaces. The GaN surface attached to microfabricated surfaces with an array of pyramid structures reduced the surface reflectance compared with that of bare GaN surface (similar to 43.3% decrease at 365 nm wavelength). In addition, as the operation temperature decreased, the hydrophobic pyramid microstructures prevented rapid frost formation by generating dispersed and small-sized frosts (ice crystals). Consequently, the photodetectors fabricated using hydrophobic surfaces with pyramid microstructures showed higher sensitivity (similar to 48.5% increase in the temperature range of - 14 degrees C to 0 degrees C) compared to the photodetectors on bare GaN surfaces, supporting the use of hydrophobic surfaces composed of microstructures for UV sensing with higher sensitivity in low-temperature environments. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCIENCE BV | - |
dc.title | Attachable freezing-delayed surfaces for ultraviolet sensing using GaN photodetector at low temperature in air | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | So, Hongyun | - |
dc.identifier.doi | 10.1016/j.apsusc.2018.11.196 | - |
dc.identifier.scopusid | 2-s2.0-85058642933 | - |
dc.identifier.wosid | 000456951700036 | - |
dc.identifier.bibliographicCitation | APPLIED SURFACE SCIENCE, v.473, pp.261 - 265 | - |
dc.relation.isPartOf | APPLIED SURFACE SCIENCE | - |
dc.citation.title | APPLIED SURFACE SCIENCE | - |
dc.citation.volume | 473 | - |
dc.citation.startPage | 261 | - |
dc.citation.endPage | 265 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Coatings & Films | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.relation.journalWebOfScienceCategory | Physics, Condensed Matter | - |
dc.subject.keywordAuthor | Gallium nitride | - |
dc.subject.keywordAuthor | Pyramidal surface | - |
dc.subject.keywordAuthor | Delayed freezing | - |
dc.subject.keywordAuthor | Frost formation | - |
dc.subject.keywordAuthor | Ultraviolet photodetectors | - |
dc.identifier.url | https://www.sciencedirect.com/science/article/pii/S0169433218332744?via%3Dihub | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
222, Wangsimni-ro, Seongdong-gu, Seoul, 04763, Korea+82-2-2220-1365
COPYRIGHT © 2021 HANYANG UNIVERSITY.
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.