Optical Transition of Eu3+Ions in YMg2Al3B6O17

Autor:	Hyun Ho Shin, Hyunju Lee, Jae Soo Yoo, Bo Yong Han, Kyung Pil Kim
Rok vydání:	2009
Předmět:	Photoluminescence Physics and Astronomy (miscellaneous) Chemistry Doping General Engineering Analytical chemistry General Physics and Astronomy chemistry.chemical_element Phosphor Oxygen Ion Absorption band Chromaticity Excitation
Zdroj:	Japanese Journal of Applied Physics. 48:081603
ISSN:	1347-4065 0021-4922
DOI:	10.1143/jjap.48.081603
Popis:	To characterize the optical transition of Eu3+ ions in YMg2Al3B6O17, solid-state reactions were carried out. Optical properties were investigated under excitation at 254 nm. A broad absorption band was exhibited at 200–320 nm in the obtained excitation spectra, which might favor application of this material in lamps. This might be attributable to charge transfer between Eu3+ ions and neighboring oxygen anions. Under 254 nm excitation, deep red emission due to the 5D0 →7F2 transition at 616 nm was observed. The doping concentration of Eu3+ in the YMg2Al3B6O17 host was quenched close to 28 mol %. The Commission Internationale de l'Eclairage (CIE) chromaticity coordinates of YMg2Al3B6O17:Eu3+ were (0.6704, 0.3294) in which correspond to deep red. However, the photoluminescence (PL) was inferior to that of Y2O3:Eu3+ by 30% in our experimental regime. The phosphor particles had good morphology with a diameter of ~2 µm.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::4f8accb438daabb054a50111bf28e69d https://doi.org/10.1143/jjap.48.081603 Zobrazit plný text záznamu