Rocksalt-structured MgZnO-based UV-C lamp emitting in 190–220 nm spectral range using 146 nm line of Kr2* generated by dielectric barrier discharge

Kotaro Ogawa; Toshiki Mitomi; Hideki Yajima; Wataru Kosaka; Hiroya Kusaka; Go Kobayashi; Tomohiro Yamaguchi; Tohru Honda; Kentaro Kaneko; Shizuo Fujita; Izumi Serizawa; Takeyoshi Onuma

doi:10.35848/1882-0786/ad9703

Applied Physics Express (Jan 2024)

Rocksalt-structured MgZnO-based UV-C lamp emitting in 190–220 nm spectral range using 146 nm line of Kr2* generated by dielectric barrier discharge

Kotaro Ogawa,
Toshiki Mitomi,
Hideki Yajima,
Wataru Kosaka,
Hiroya Kusaka,
Go Kobayashi,
Tomohiro Yamaguchi,
Tohru Honda,
Kentaro Kaneko,
Shizuo Fujita,
Izumi Serizawa,
Takeyoshi Onuma

Affiliations

Kotaro Ogawa: ORCiD; Department of Applied Physics, School of Advanced Engineering and Department of Electrical Engineering and Electronics, Graduate School of Engineering, Kogakuin University , 2665-1 Nakano, Hachioji, Tokyo 192-0015, Japan; ORC Manufacturing Co., Ltd. , 4896 Tamagawa, Chino, Nagano 391-0011, Japan
Toshiki Mitomi: Department of Applied Physics, School of Advanced Engineering and Department of Electrical Engineering and Electronics, Graduate School of Engineering, Kogakuin University , 2665-1 Nakano, Hachioji, Tokyo 192-0015, Japan
Hideki Yajima: ORC Manufacturing Co., Ltd. , 4896 Tamagawa, Chino, Nagano 391-0011, Japan
Wataru Kosaka: Department of Applied Physics, School of Advanced Engineering and Department of Electrical Engineering and Electronics, Graduate School of Engineering, Kogakuin University , 2665-1 Nakano, Hachioji, Tokyo 192-0015, Japan
Hiroya Kusaka: Department of Applied Physics, School of Advanced Engineering and Department of Electrical Engineering and Electronics, Graduate School of Engineering, Kogakuin University , 2665-1 Nakano, Hachioji, Tokyo 192-0015, Japan
Go Kobayashi: ORC Manufacturing Co., Ltd. , 4896 Tamagawa, Chino, Nagano 391-0011, Japan
Tomohiro Yamaguchi: ORCiD; Department of Applied Physics, School of Advanced Engineering and Department of Electrical Engineering and Electronics, Graduate School of Engineering, Kogakuin University , 2665-1 Nakano, Hachioji, Tokyo 192-0015, Japan
Tohru Honda: Department of Applied Physics, School of Advanced Engineering and Department of Electrical Engineering and Electronics, Graduate School of Engineering, Kogakuin University , 2665-1 Nakano, Hachioji, Tokyo 192-0015, Japan
Kentaro Kaneko: ORCiD; Department of Electronic Science and Engineering, Kyoto University , Katsura, Nishikyo-ku, Kyoto 615-8510, Japan; Engineering Education Research Center, Kyoto University , Katsura, Nishikyo-ku, Kyoto 615-8530, Japan; Photonics and Electronics Science and Engineering Center, Kyoto University , Katsura, Nishikyo-ku, Kyoto 615-8520, Japan
Shizuo Fujita: ORCiD; Department of Electronic Science and Engineering, Kyoto University , Katsura, Nishikyo-ku, Kyoto 615-8510, Japan; Photonics and Electronics Science and Engineering Center, Kyoto University , Katsura, Nishikyo-ku, Kyoto 615-8520, Japan
Izumi Serizawa: ORC Manufacturing Co., Ltd. , 4896 Tamagawa, Chino, Nagano 391-0011, Japan
Takeyoshi Onuma: ORCiD; Department of Applied Physics, School of Advanced Engineering and Department of Electrical Engineering and Electronics, Graduate School of Engineering, Kogakuin University , 2665-1 Nakano, Hachioji, Tokyo 192-0015, Japan

DOI: https://doi.org/10.35848/1882-0786/ad9703
Journal volume & issue: Vol. 17, no. 12
p. 121001

Abstract

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Rocksalt (RS)-structured Mg _0.97 Zn _0.03 O polycrystalline film, which was grown on a quartz glass substrate with the hot-wall-type mist chemical vapor deposition method, exhibited a vacuum ultraviolet photoluminescence at 6.39 eV (194 nm) at 300 K. The film was then used as the emission layer of a spot-irradiation lamp that had the 146 nm line of a Kr _2 ^∗ excimer lamp as an excitation source. The UV-C lamp exhibited a distinct peak at 6.14 eV (202 nm) spreading over a range of 190–220 nm. The result is the first demonstration of a RS-MgZnO-based UV-C lamp.

Published in Applied Physics Express

ISSN: 1882-0778 (Print); 1882-0786 (Online)
Publisher: IOP Publishing
Country of publisher: United Kingdom
LCC subjects: Science: Physics
Website: https://iopscience.iop.org/journal/1882-0786

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