Bright future of deep-ultraviolet photonics: emerging UVC chip-scale light-source technology platforms, benchmarking, challenges, and outlook for UV disinfection

buir.contributor.authorSharma, Vijay Kumar
buir.contributor.authorDemir, Hilmi Volkan
buir.contributor.orcidSharma, Vijay Kumar|0000-0002-2028-5715
buir.contributor.orcidDemir, Hilmi Volkan|0000-0003-1793-112X
dc.citation.epage1521en_US
dc.citation.issueNumber5en_US
dc.citation.spage1513en_US
dc.citation.volumeNumber9en_US
dc.contributor.authorSharma, Vijay Kumar
dc.contributor.authorDemir, Hilmi Volkan
dc.date.accessioned2023-02-15T11:50:09Z
dc.date.available2023-02-15T11:50:09Z
dc.date.issued2022-04-28
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)en_US
dc.description.abstractThe COVID-19 pandemic has generated great interest in ultraviolet (UV) disinfection, particularly for air disinfection. Although UV disinfection was discovered close to 90 years ago, only very recently has it reached the consumer market and achieved much acceptance from the public, starting in the 2000s. The current UV light source of choice has been almost exclusively a low-pressure mercury vapor discharge lamp. Today, however, with emerging deep-UV (DUV) chip-scale technologies, there has been a significant advancement, along with ever-increasing interest, in the development and deployment of disinfection systems that employ compact devices that emit in the deep-UV spectral band (200–280 nm), including UV light-emitting diodes (LEDs) and cathodoluminescent (CL) chips. This perspective looks into competing UV technologies (including mercury lamps and excimer lamps as benchmarks) on their optical merits and demerits and discusses the emerging chip-scale technologies of DUV electroluminescent and cathodoluminescent devices, comparing them against the benchmarks and providing an overview of the challenges and prospects. The accelerating progress in chip-scale solutions for deep-UV light sources promises a bright future in UV disinfection.en_US
dc.identifier.doi10.1021/acsphotonics.2c00041en_US
dc.identifier.issn2330-4022
dc.identifier.urihttp://hdl.handle.net/11693/111346
dc.language.isoEnglishen_US
dc.publisherAmerican Chemical Societyen_US
dc.relation.isversionofhttps://doi.org/10.1021/acsphotonics.2c00041en_US
dc.source.titleACS Photonicsen_US
dc.subjectMercury lampen_US
dc.subjectExcimer lampen_US
dc.subjectUVC LEDsen_US
dc.subjectCathodoluminescent chipsen_US
dc.subjectGermicidal efficiencyen_US
dc.titleBright future of deep-ultraviolet photonics: emerging UVC chip-scale light-source technology platforms, benchmarking, challenges, and outlook for UV disinfectionen_US
dc.typeArticleen_US
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