Formation of hierarchical macro porous YAlO:Ce multifunctional nanophosphors
- Nanomaterials Laboratory, Inorganic and Physical Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007 (India)
Hierarchically macro-porous lumino-magnetic yttrium aluminium oxide (YAlO:- YAT: tetragonal; YAG: garnet; YAM: monoclinic) ceramic nanophosphors doped with trivalent cerium (Ce) ions have been synthesized by a novel and versatile self assembly route without the need of any external templates. X-ray diffraction and X-ray photoelectron spectroscopy studies confirm the presence of dopant and its valence state. Room temperature ferromagnetism in undoped and YAlO:Ce suggest an intrinsic nature of ferromagnetism dependent on host lattice imperfection along with yellow photoluminescence emission explicitly arising due to Ce doping established the non-interfering character of the two phenomena. Such a porous morphology has the potential of the biocarriers and could be engineered to make it suitable for spintronic applications by incorporation of dielectric into the pores and in conjunction with blue light emitting devices which could be used to obtain white light.
- OSTI ID:
- 22596913
- Journal Information:
- Journal of Applied Physics, Vol. 119, Issue 11; Other Information: (c) 2016 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
- Country of Publication:
- United States
- Language:
- English
Similar Records
White light source with laser-excited phosphor
Combustion synthesis and thermoluminescence in YAlO{sub 3}:Dy{sup 3+}
Related Subjects
SUPERCONDUCTIVITY AND SUPERFLUIDITY
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ALUMINIUM OXIDES
CERAMICS
CERIUM
CERIUM IONS
DIELECTRIC MATERIALS
DOPED MATERIALS
FERROMAGNETISM
GARNETS
MONOCLINIC LATTICES
MORPHOLOGY
NEODYMIUM LASERS
PHOTOLUMINESCENCE
POROUS MATERIALS
TEMPERATURE RANGE 0273-0400 K
X-RAY DIFFRACTION
X-RAY PHOTOELECTRON SPECTROSCOPY
YTTRIUM OXIDES