38.2: Lifetime Improvement of Eu-doped BAM by Plasma Treatment

Autor:	Raju Ramasamy, Tohru Yasuda, Tsutae Shinoda, Hiroshi Kajiyama, Takayuki Fukasawa, G. Shanmugavelayutham, Hiroaki Tanno
Rok vydání:	2007
Předmět:	Crystal Photoluminescence Argon chemistry Hydrogen Doping Analytical chemistry food and beverages chemistry.chemical_element Plasma Oxygen Thermoluminescence
Zdroj:	SID Symposium Digest of Technical Papers. 38:1321-1324
ISSN:	0097-966X
Popis:	The effect of plasma treatment on the luminance efficacy of BaMgAl10O17: Eu2+ (BAM: Eu2+) is investigated. Among argon-based plasmas with hydrogen or oxygen, it is confirmed that the hydrogen addition to argon plasma supremely improves the lifetime of BAM: Eu2+. The photoluminescence (PL) and thermoluminescence (TL) measurements reveal that the electron traps closely concerned with degradation are reduced by the hydrogen plasma. The PL measurements on BaMgAl10O17 strongly suggest that the vacancies and/or defects in BAM crystal are somehow repaired by hydrogen bridge formation.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::76e2409b2d2a9bfc8e9b1a523abfa726 https://doi.org/10.1889/1.2785555 Zobrazit plný text záznamu Plný text