Ultraviolet-C Photoresponsivity Using Fabricated TiO2 Thin Films and Transimpedance-Amplifier-Based Test Setup

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dc.citation.issue21
dc.citation.volume22
dc.contributor.authorCadatal-Raduban M
dc.contributor.authorPope J
dc.contributor.authorOlejníček J
dc.contributor.authorKohout M
dc.contributor.authorHarrison JA
dc.contributor.authorHasan SMR
dc.contributor.editorTorres ML
dc.contributor.editorDe Luca AC
dc.contributor.editorMourka A
dc.coverage.spatialSwitzerland
dc.date.accessioned2023-10-18T21:56:30Z
dc.date.accessioned2023-10-19T20:38:41Z
dc.date.available2022-10-25
dc.date.available2023-10-18T21:56:30Z
dc.date.available2023-10-19T20:38:41Z
dc.date.issued2022-11
dc.date.updated2023-10-18T21:39:13Z
dc.description.abstractWe report on fabricated titanium dioxide (TiO2) thin films along with a transimpedance amplifier (TIA) test setup as a photoconductivity detector (sensor) in the ultraviolet-C (UV-C) wavelength region, particularly at 260 nm. TiO2 thin films deposited on high-resistivity undoped silicon-substrate at thicknesses of 100, 500, and 1000 nm exhibited photoresponsivities of 81.6, 55.6, and 19.6 mA/W, respectively, at 30 V bias voltage. Despite improvements in the crystallinity of the thicker films, the decrease in photocurrent, photoconductivity, photoconductance, and photoresponsivity in thicker films is attributed to an increased number of defects. Varying the thickness of the film can, however, be leveraged to control the wavelength response of the detector. Future development of a chip-based portable UV-C detector using TiO2 thin films will open new opportunities for a wide range of applications.
dc.description.confidentialfalse
dc.edition.editionNovember 2022
dc.format.extent8176-
dc.identifier8176
dc.identifiers22218176
dc.identifierhttps://www.ncbi.nlm.nih.gov/pubmed/36365873
dc.identifier.citationCadatal-Raduban M, Pope J, Olejníček J, Kohout M, Harrison JA, Hasan SMR. (2022). Ultraviolet-C Photoresponsivity Using Fabricated TiO2 Thin Films and Transimpedance-Amplifier-Based Test Setup.. Sensors (Basel). 22. 21. (pp. 8176-).
dc.identifier.doi10.3390/s22218176
dc.identifier.eissn1424-8220
dc.identifier.elements-typejournal-article
dc.identifier.harvestedMassey_Dark
dc.identifier.issn1424-8220
dc.identifier.urihttp://hdl.handle.net/10179/20346
dc.languageeng
dc.publisherMDPI (Basel, Switzerland)
dc.publisher.urihttps://www.mdpi.com/1424-8220/22/21/8176
dc.relation.isPartOfSensors (Basel)
dc.rights(c) 2022 The Author/sen_US
dc.rightsCC BYen_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en_US
dc.subjectUV-C
dc.subjectphotoconductive detector
dc.subjectsensor
dc.subjectthin film
dc.subjecttitanium dioxide
dc.subjecttransimpedance amplifier
dc.subjectultraviolet
dc.titleUltraviolet-C Photoresponsivity Using Fabricated TiO2 Thin Films and Transimpedance-Amplifier-Based Test Setup
dc.typeJournal article
pubs.elements-id457582
pubs.organisational-groupOther
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