Rocksalt-structured MgZnO-based UV-C lamp emitting in 190–220 nm spectral range using 146 nm line of Kr<sub>2</sub>* generated by dielectric barrier discharge
Abstract 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.
Authors
- Kotaro Ogawa (ORCID: https://orcid.org/0009-0004-8523-1824)
- Tomohiro Yamaguchi (ORCID: https://orcid.org/0000-0001-6548-856X)
- Kentaro Kaneko (ORCID: https://orcid.org/0000-0001-6626-7611)
- Go Kobayashi
- Shizυo Fujita (ORCID: https://orcid.org/0000-0001-6384-6693)
- Takeyoshi Onuma (ORCID: https://orcid.org/0000-0003-0060-4245)
- Izumi Serizawa
- Wataru Kosaka (ORCID: https://orcid.org/0000-0001-6089-4112)
- Tohru Honda (ORCID: https://orcid.org/0000-0003-4119-1395)
- Hiroya Kusaka
- Hideki Yajima
- Toshiki Mitomi
Institutions
- Kogakuin University (JP)
- Kyoto University (JP)
- Kyoto Katsura Hospital (JP)
Publication Details
- Journal
- Applied Physics Express
- Published
- 2024-11-25
- DOI
- https://doi.org/10.35848/1882-0786/ad9703
- Citations
- 1
- Primary Topic
- GaN-based semiconductor devices and materials
- Type
- article
- Field-Weighted Citation Impact
- 0.31
Funders
- Japan Society for the Promotion of Science