Synthesis of Gd{sub 3}PO{sub 7}:Eu{sup 3+} nanospheres via a facile combustion method and optical properties
- Key Laboratory of Excited State Processes, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Science, Changchun 130033 (China)
Eu{sup 3+}-doped Gd{sub 3}PO{sub 7} nanospheres with an average diameter of {approx}300 nm and a narrow size distribution have been prepared by a facile combustion method and structurally characterized by X-ray diffraction and field emission scanning electron microscopy. The luminescent properties were systemically studied by the measurement of excitation/emission spectra, and emission spectra under different temperatures, as well as by photostability. The strong red-emission intensity peaking at 614 nm originates the {sup 5}D{sub 0}{yields}{sup 7}F{sub 2} transition and is observed under 254-nm irradiation, indicating that Eu{sup 3+} ions in Gd{sub 3}PO{sub 7} mainly occupied non-centrosymmetry sites. The CIE1931 XY chromaticity coordinates of Gd{sub 3}PO{sub 7}:Eu{sup 3+} nanospheres are (x=0.654, y=0.345) in the red area, which is near the National Television Standard Committee standard chromaticity coordinates for red. Thus, Gd{sub 3}PO{sub 7}:Eu{sup 3+} nanospheres may be potential red-emitting phosphors for PDP and Xe-based mercury-free lamps. - Graphical abstract: SEM image of as-prepared Gd{sub 3}PO{sub 7}:Eu{sup 3+} nanospheres. Display Omitted.
- OSTI ID:
- 21128239
- Journal Information:
- Journal of Solid State Chemistry, Journal Name: Journal of Solid State Chemistry Journal Issue: 4 Vol. 181; ISSN 0022-4596; ISSN JSSCBI
- Country of Publication:
- United States
- Language:
- English
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