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Ultraviolet-emissive BaSiO3:Ce3+ Phosphor for VUV Excimer Lamp  

Lee, Jugyeong (Department of Display Science and Engineering, Pukyong National University)
Afandi, Mohammad M. (Department of Display Science and Engineering, Pukyong National University)
Kim, Jongsu (Department of Display Science and Engineering, Pukyong National University)
Heo, Hoon (Department of Display Science and Engineering, Pukyong National University)
Publication Information
Journal of the Semiconductor & Display Technology / v.20, no.2, 2021 , pp. 1-5 More about this Journal
Abstract
Ultraviolet (UVA)-emissive BaSiO3:Ce3+ phosphor was astonishingly reproducible by vacuum-sintering at a high temperature through a simple solid-state reaction method. It was conveniently formed in BaSiO3 phases. The compound showed the UVA emission and the UV-VUV excitation due to 5d-4f transitions from Ce3+ ions: emission peak at 380 nm with a 56 nm width. Its temperature dependence and vacuum UV excitability were examined for practical application as an excimer discharge lamp, which showed the high thermal stability (80% at 100℃) and the strong VUV excitations at 145 nm and 172 nm.
Keywords
Ultraviolet; Phosphor; $BaSiO_3:Ce^{3+}$; Photoluminescence; Disinfection;
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