Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/148901
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dc.contributor.authorSharma, Vijay Kumaren_US
dc.contributor.authorTan, Swee Tiamen_US
dc.contributor.authorZheng, Haiyangen_US
dc.contributor.authorShendre, Sushanten_US
dc.contributor.authorBaum, Alexandraen_US
dc.contributor.authorChalvet, Francisen_US
dc.contributor.authorTirén, Jonasen_US
dc.contributor.authorDemir, Hilmi Volkanen_US
dc.date.accessioned2021-08-12T02:54:34Z-
dc.date.available2021-08-12T02:54:34Z-
dc.date.issued2021-
dc.identifier.citationSharma, V. K., Tan, S. T., Zheng, H., Shendre, S., Baum, A., Chalvet, F., Tirén, J. & Demir, H. V. (2021). On‐chip mercury‐free deep‐UV light‐emitting sources with ultrahigh germicidal efficiency. Advanced Optical Materials, 9(15), 2100072-. https://dx.doi.org/10.1002/adom.202100072en_US
dc.identifier.issn2195-1071en_US
dc.identifier.urihttps://hdl.handle.net/10356/148901-
dc.description.abstractIn the current COVID-19 scenario, there is an urgent need for developing efficient and mercury-free deep-ultraviolet (deep-UV) light sources for disinfection applications. AlGaN-based light-emitting diodes (LEDs) may be considered as an alternative, but due to their inherent low efficiencies in the deep-UV spectral region, significant developments are required to address efficiency issues. Here, a mercury-free chip-size deep-UV light source is shown which is enabled by high-vacuum chip-scale cavity sealing overcoming the limitations of both mercury lamps and deep-UV LEDs. These deep-UV chips are cathodoluminescence based, in which a cavity is created with high vacuum integrity for efficient field-emission. These chips demonstrate optical output power ≥20 mW (efficiency ≈4%) and, owing to the spectral overlap of phosphor cathodoluminescence spectra and germicidal effectiveness curve, resulted in log 6 (99.9999%) germicidal efficiency. Additionally, these chips offer high reliability, “instant” ON/OFF capability, high operational lifetimes, and low-temperature dependence with complete design freedom.en_US
dc.language.isoenen_US
dc.relation.ispartofAdvanced Optical Materialsen_US
dc.rightsThis is the peer reviewed version of the following article: Sharma, V. K., Tan, S. T., Zheng, H., Shendre, S., Baum, A., Chalvet, F., Tirén, J. & Demir, H. V. (2021). On‐chip mercury‐free deep‐UV light‐emitting sources with ultrahigh germicidal efficiency. Advanced Optical Materials, 9(15), 2100072-, which has been published in final form at https://dx.doi.org/10.1002/adom.202100072. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.en_US
dc.subjectEngineering::Electrical and electronic engineeringen_US
dc.subjectScience::Physicsen_US
dc.titleOn‐chip mercury‐free deep‐UV light‐emitting sources with ultrahigh germicidal efficiencyen_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Electrical and Electronic Engineeringen_US
dc.contributor.schoolSchool of Physical and Mathematical Sciencesen_US
dc.contributor.researchLUMINOUS! Center of Excellence for Semiconductor Lighting and Displaysen_US
dc.identifier.doi10.1002/adom.202100072-
dc.description.versionAccepted versionen_US
dc.identifier.issue15en_US
dc.identifier.volume9en_US
dc.identifier.spage2100072en_US
dc.subject.keywordsCathodoluminescenceen_US
dc.subject.keywordsDeep-ultraviolet Chipsen_US
dc.subject.keywordsDisinfection Applicationsen_US
item.fulltextWith Fulltext-
item.grantfulltextembargo_20220811-
Appears in Collections:EEE Journal Articles
SPMS Journal Articles
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