Synthesis and site-selective photoluminescence property of Ca8La2(PO4)6O2: Ce3+. Issue 1592 (27th March 2014)

• Record Type: Journal Article
• Authors: Zhu, Ge; Shi, Yurong; Mikami, Masayoshi; Shimomura, Yasuo; Wang, Yuhua
• Is Part Of: MRS proceedings. Issue 1592:(2014)
• Publication Date: 2014-03-27
• Subjects: luminescence, -- optical properties, -- display; Electrical engineering -- Congresses; Physics -- Congresses; Materials -- Research -- Congresses; Materials science -- Congresses; 620.11
• DOI: 10.1557/opl.2014.343
• Languages: English
• ISSNs: 0272-9172

Abstract

ABSTRACT: A series of Ce 3+ doped Ca8 La2 (PO4 )6 O2 phosphors with tunable emission were successfully synthesized by traditional solid state reaction. The crystal structure and photoluminescence properties were studied through X-ray diffraction, photoluminescence excitation and emission spectra. The results indicated that Ca8 La2 (PO4 )6 O2 :Ce 3+ exhibited color-tunable emission due to the 5 d -4 f transitions of Ce 3+ ions under different wavelength excitation. The optimal doping content of Ce 3+ ions in Ca8 La2 (PO4 )6 O2 was found to be 5 mol%. The site-selective photoluminescence property and the reason for red-shift of the emission band along with Ce 3+ content and the excitation wavelength were also studied in detail.