Abstract
In this paper we report the synthesis and luminescence of strontium cerium oxide (Sr2CeO4:Eu 3+ (0.5mol%),La 3+ (0.5mol%) prepared by solid state reaction method in air at 12000C.These samples were characterized by X-ray diffraction, scanning electron microscope (SEM) and photoluminescence (PL) techniques, particle size analysis. The photo luminescence (PL) spectra of pure and Eu 3+ , La 3+ codoped Sr2CeO4 were recorded at room temperature. Sr2CeO4 phosphor was effectively excited around 250 nm and observed a broad emission band peak around 467 nm. XRD data revealed that the structure of Sr2CeO4 is orthorhombic, and the mean crystallite size of Sr 2CeO4 and Sr2CeO4: Eu 3+ , La 3+ were 9 nm and 11nm respectively. The colour co-ordinates of Sr2CeO4 were x = 0.16 and y = 0.18 and CIE co-ordinates revealed that the present phosphors may be used in white light applications.
Highlights
The search for blue phosphor emitters has been increasing due to their applicability in many fields, such as cathode ray tubes, projection televisions, fluorescent tubes, X-ray detectors and field emission displays [1]
Sr2CeO4 crystals doped with rare-earth elements have been studied since an unusual blue phosphor Sr2CeO4 was prepared using the combinatorial techniques by Danielson et al in 1998
We have studied on the synthesis, size, morphology and photoluminescence properties of pure and Eu3+, La3+ codoped Sr2CeO4 phosphors prepared by solid state reaction method in air at 12000C
Summary
The search for blue phosphor emitters has been increasing due to their applicability in many fields, such as cathode ray tubes, projection televisions, fluorescent tubes, X-ray detectors and field emission displays [1]. His current research interest is in the synthesis and characterization of blue emitting phosphor for solid state lighting.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
