Bright future of deep-ultraviolet photonics: emerging UVC chip-scale light-source technology platforms, benchmarking, challenges, and outlook for UV disinfection
The 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 2...
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sg-ntu-dr.10356-1575802023-02-28T20:06:44Z Bright future of deep-ultraviolet photonics: emerging UVC chip-scale light-source technology platforms, benchmarking, challenges, and outlook for UV disinfection Sharma, Vijay Kumar Demir, Hilmi Volkan School of Electrical and Electronic Engineering School of Physical and Mathematical Sciences School of Materials Science and Engineering LUMINOUS! Centre of Excellence for Semiconductor Lighting & Displays Engineering::Materials::Photonics and optoelectronics materials Mercury Lamp Excimer Lamp The 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. Submitted/Accepted version 2022-05-15T06:48:26Z 2022-05-15T06:48:26Z 2022 Journal Article Sharma, V. K. & Demir, H. V. (2022). Bright future of deep-ultraviolet photonics: emerging UVC chip-scale light-source technology platforms, benchmarking, challenges, and outlook for UV disinfection. ACS Photonics. https://dx.doi.org/10.1021/acsphotonics.2c00041 2330-4022 https://hdl.handle.net/10356/157580 10.1021/acsphotonics.2c00041 en ACS Photonics This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Photonics, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acsphotonics.2c00041. application/pdf |
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Engineering::Materials::Photonics and optoelectronics materials Mercury Lamp Excimer Lamp Sharma, Vijay Kumar Demir, Hilmi Volkan Bright future of deep-ultraviolet photonics: emerging UVC chip-scale light-source technology platforms, benchmarking, challenges, and outlook for UV disinfection |
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The 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. |
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School of Electrical and Electronic Engineering |
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School of Electrical and Electronic Engineering Sharma, Vijay Kumar Demir, Hilmi Volkan |
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Sharma, Vijay Kumar Demir, Hilmi Volkan |
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Sharma, Vijay Kumar |
title |
Bright future of deep-ultraviolet photonics: emerging UVC chip-scale light-source technology platforms, benchmarking, challenges, and outlook for UV disinfection |
title_short |
Bright future of deep-ultraviolet photonics: emerging UVC chip-scale light-source technology platforms, benchmarking, challenges, and outlook for UV disinfection |
title_full |
Bright future of deep-ultraviolet photonics: emerging UVC chip-scale light-source technology platforms, benchmarking, challenges, and outlook for UV disinfection |
title_fullStr |
Bright future of deep-ultraviolet photonics: emerging UVC chip-scale light-source technology platforms, benchmarking, challenges, and outlook for UV disinfection |
title_full_unstemmed |
Bright future of deep-ultraviolet photonics: emerging UVC chip-scale light-source technology platforms, benchmarking, challenges, and outlook for UV disinfection |
title_sort |
bright future of deep-ultraviolet photonics: emerging uvc chip-scale light-source technology platforms, benchmarking, challenges, and outlook for uv disinfection |
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2022 |
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https://hdl.handle.net/10356/157580 |
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