Self-powered, transparent, flexible, and solar-blind deep-UV detector based on surface-modified TiO2 nanoparticles
DC Field | Value | Language |
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dc.contributor.author | HOANG, TRAN MANH | - |
dc.contributor.author | Bae, Jong-Seong | - |
dc.contributor.author | Hur, Jaehyun | - |
dc.date.accessioned | 2022-11-14T00:40:05Z | - |
dc.date.available | 2022-11-14T00:40:05Z | - |
dc.date.created | 2022-11-14 | - |
dc.date.issued | 2022-12 | - |
dc.identifier.issn | 0169-4332 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/86096 | - |
dc.description.abstract | Titanium oxide (TiO2) has been widely used as a low-cost, chemically stable, and biologically inert semiconductor for many applications. However, there are a limited number of studies on the application of TiO2 for deep-UV photodetection, which has potential environmental and military applications. In this study, we introduce a facile sol-gel method followed by post-modification with acetic acid (HAc) to prepare wide-bandgap anatase TiO2 (3.83 eV) for use as a solar-blind deep-UV photoabsorber. The beneficial effects of simple postmodification on the structural, optical, and electrical properties of TiO2 were comprehensively investigated. When TiO2 nanoparticles are functionalized by an appropriate number of HAc, O vacancies in TiO2 are significantly reduced while the bandgap is increased with reduced particle size. As a result, the HAc-modified TiO2 based deep-UV photodetector exhibits high specific detectivity, fast response time, and R254:R365 rejection at zero bias. Furthermore, the device displays good stability with a nearly constant photoresponse even after one month of storage and under stringent bending strain. The average visible transmittance of the device reaches as high as 80%. The results suggest that the device can be used as an efficient TiO2-based solution-processable solar-blind deep-UV photodetector, with self-powered operability, wearability, and transparency. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER | - |
dc.relation.isPartOf | APPLIED SURFACE SCIENCE | - |
dc.title | Self-powered, transparent, flexible, and solar-blind deep-UV detector based on surface-modified TiO2 nanoparticles | - |
dc.type | Article | - |
dc.type.rims | ART | - |
dc.description.journalClass | 1 | - |
dc.identifier.wosid | 000877161600002 | - |
dc.identifier.doi | 10.1016/j.apsusc.2022.154528 | - |
dc.identifier.bibliographicCitation | APPLIED SURFACE SCIENCE, v.604 | - |
dc.description.isOpenAccess | N | - |
dc.identifier.scopusid | 2-s2.0-85136070552 | - |
dc.citation.title | APPLIED SURFACE SCIENCE | - |
dc.citation.volume | 604 | - |
dc.contributor.affiliatedAuthor | HOANG, TRAN MANH | - |
dc.contributor.affiliatedAuthor | Hur, Jaehyun | - |
dc.type.docType | Article | - |
dc.subject.keywordAuthor | TiO2 nanoparticle thin film | - |
dc.subject.keywordAuthor | O vacancies | - |
dc.subject.keywordAuthor | Self-powered operation | - |
dc.subject.keywordAuthor | Solar-blind UV detection | - |
dc.subject.keywordAuthor | Transparent | - |
dc.subject.keywordAuthor | Wearable electronics | - |
dc.subject.keywordPlus | PHOTODETECTOR | - |
dc.subject.keywordPlus | CELLS | - |
dc.subject.keywordPlus | STATE | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | NANOSHEETS | - |
dc.subject.keywordPlus | EFFICIENT | - |
dc.subject.keywordPlus | PEDOTPSS | - |
dc.subject.keywordPlus | TITANIUM | - |
dc.subject.keywordPlus | RUTILE | - |
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.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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