Influence of amorphous and crystalline type precursor intermediates on the morphology and luminescence properties of green emitting β-Ca2SiO4:Eu2+ phosphor synthesized using a liquid phase precursor method

Autor:	Hoo Jeong Lee, Takaki Masaki, Ho Kyoon Chung, Karupannan Senthil, Deok Su Jo, Toda Kenji, Masato Kakihana, Dae Ho Yoon, Jihae Kim
Rok vydání:	2014
Předmět:	Diffraction Morphology (linguistics) Materials science Mechanical Engineering Metals and Alloys Mineralogy Liquid phase Phosphor Amorphous solid Crystallinity Crystallography Mechanics of Materials Transmission electron microscopy Materials Chemistry Luminescence
Zdroj:	Journal of Alloys and Compounds. 608:311-317
ISSN:	0925-8388
Popis:	Influence of precursor intermediates (PI) on the synthesis of high efficient green emitting β-Ca2SiO4:Eu2+ (β-C2S:Eu) phosphors were demonstrated by a novel liquid-phase-precursor (LPP) method utilizing (a) CaCl2–EuCl3, (b) Ca(NO3)2–EuCl3, (c) CaCl2–Eu(NO3)3, and (d) Ca(NO3)2–Eu(NO3)3 combinations as precursors. The crystallinity and morphology of the PI analyzed using X-ray diffraction and high-resolution transmission electron microscopy measurements showed both the amorphous and crystalline type precursor intermediates (API and CPI) depending upon the metal-source materials. The final morphology and luminescence properties of β-C2S:Eu phosphors were found to be strongly influenced by the crystallinity (amorphous and crystalline) and morphology of the PIs. The APIs have led to regular-shaped homogeneous phosphor particles with higher luminescence when compared with the CPIs.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::def6ab00545caada176c3ea4b06dbdd8 https://doi.org/10.1016/j.jallcom.2014.04.133 Zobrazit plný text záznamu Full Text from ScienceDirect