Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 소홍윤 | - |
dc.date.accessioned | 2018-10-30T05:23:22Z | - |
dc.date.available | 2018-10-30T05:23:22Z | - |
dc.date.issued | 2016-09 | - |
dc.identifier.citation | REVIEW OF SCIENTIFIC INSTRUMENTS, v. 87, no. 9, page. 1-6 | en_US |
dc.identifier.issn | 0034-6748 | - |
dc.identifier.issn | 1089-7623 | - |
dc.identifier.uri | https://aip.scitation.org/doi/10.1063/1.4962704 | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/76871 | - |
dc.description.abstract | A miniature sensor for detecting the orientation of incident ultraviolet light was microfabricated using gallium nitride (GaN)-on-sapphire substrates and semi-transparent interdigitated gold electrodes for sun sensing applications. The individual metal-semiconductor-metal photodetector elements were shown to have a stable and repeatable response with a high sensitivity (photocurrent-to-dark current ratio (PDCR) = 2.4 at -1 V bias) and a high responsivity (3200 A/W at -1 V bias) under ultraviolet (365 nm) illumination. The 3 x 3 GaN-on-sapphire ultraviolet photodetector array was integrated with a gold aperture to realize a miniature sun sensor (1.35 mm x 1.35 mm) capable of determining incident light angles with a +/- 45 degrees field of view. Using a simple comparative figure of merit algorithm, measurement of incident light angles of 0 degrees and 45 degrees was quantitatively and qualitatively (visually) demonstrated by the sun sensor, supporting the use of GaN-based sun sensors for orientation, navigation, and tracking of the sun within the harsh environment of space. Published by AIP Publishing. | en_US |
dc.description.sponsorship | This work was supported by an Early Career Faculty grant from NASA's Space Technology Research Program (Grant No. NNAX12AQ48G) and a NASA Graduate Aeronautics Scholarship (Grant No. NNX15AV94H). Fabrication work was performed in part at the Stanford Nanofabrication Facility (SNF) and Stanford Nano Shared Facilities (SNSF). | en_US |
dc.language.iso | en | en_US |
dc.publisher | AMER INST PHYSICS | en_US |
dc.subject | HIGH-TEMPERATURE | en_US |
dc.subject | MSM PHOTODETECTORS | en_US |
dc.subject | CURRENT TRANSPORT | en_US |
dc.subject | SEMICONDUCTOR | en_US |
dc.subject | MECHANISMS | en_US |
dc.subject | ELECTRODES | en_US |
dc.subject | HETEROJUNCTION | en_US |
dc.subject | DETECTORS | en_US |
dc.subject | RADIATION | en_US |
dc.title | A microfabricated sun sensor using GaN-on-sapphire ultraviolet photodetector arrays | en_US |
dc.type | Article | en_US |
dc.identifier.doi | 10.1063/1.4962704 | - |
dc.relation.journal | REVIEW OF SCIENTIFIC INSTRUMENTS | - |
dc.contributor.googleauthor | Miller, Ruth A. | - |
dc.contributor.googleauthor | So, Hongyun | - |
dc.contributor.googleauthor | Chiamori, Heather C. | - |
dc.contributor.googleauthor | Suria, Ateeq J. | - |
dc.contributor.googleauthor | Chapin, Caitlin A. | - |
dc.contributor.googleauthor | Senesky, Debbie G. | - |
dc.relation.code | 2016003103 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF ENGINEERING[S] | - |
dc.sector.department | DIVISION OF MECHANICAL ENGINEERING | - |
dc.identifier.pid | hyso | - |
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