Sol-Gel Preparation and Luminescence Properties of BaMgAl10O17:Eu2+ Phosphors

Autor:	Chung-Tao Chen, Chung-Hsin Lu, Baibaswata Bhattacharjee
Rok vydání:	2006
Předmět:	Reaction mechanism Photoluminescence Materials science food and beverages Mineralogy Phosphor General Chemistry law.invention chemistry.chemical_compound chemistry Chemical engineering Geochemistry and Petrology law Crystallization Luminescence Citric acid Ethylene glycol Sol-gel
Zdroj:	Journal of Rare Earths. 24:706-711
ISSN:	1002-0721
DOI:	10.1016/s1002-0721(07)60013-1
Popis:	The synthesis of BaMgAlmO10O17: Eu2+ (BAM) phosphors using the sol-gel method and their luminescence properties were reported. The blue-light emitting BAM was synthesized using citric acid and ethylene glycol as chelating materials. Emission of blue-light was obtained from these phosphors. The luminescent intensity increases as the temperature of heat treatment is increased. This study investigated the effects of the molar ratio of ethylene glycol to eitric acid (Φ value), with respect to the phase formation and luminescence properties of BAM. The variation of the Φ value resulted in the change of the sol-gel reaction mechanism and the microstructures of the resultant powders. An increase in Φ value leads to an increase in the rate of BAM phase formation. The photoluminescent intensity of the prepared phosphors increases with heating temperatures because of enhanced crystallization.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::6b753e00d6bdcef54d9dc327a6624c3a https://doi.org/10.1016/s1002-0721(07)60013-1 Zobrazit plný text záznamu Full Text from ScienceDirect