Luminescence of Ce3+ at two different sites in ?-Sr2P2O7 under vacuum ultraviolet-UV and x-ray excitation

Hou, D.; Han, B.; Chen, W.; Liang, H.; Su, Q.; Dorenbos, P.; Huang, Y.; Gao, Z.; Tao, Y.

doi:doi:10.1063/1.3500333

Luminescence of Ce3+ at two different sites in ?-Sr2P2O7 under vacuum ultraviolet-UV and x-ray excitation

Title

Luminescence of Ce3+ at two different sites in ?-Sr2P2O7 under vacuum ultraviolet-UV and x-ray excitation

Author

Hou, D.
Han, B.
Chen, W.
Liang, H.
Su, Q.
Dorenbos, P.
Huang, Y.
Gao, Z.
Tao, Y.

Faculty

Applied Sciences

Department

RRR/Radiation, Radionuclides and Reactors

Date

2010-10-26

Abstract

A series of Ce3+ doped ?-Sr2?2xCexNaxP2O7 phosphor compounds has been prepared using a high-temperature solid-state reaction technique. The luminescence properties under vacuum ultraviolet-UV and x-ray excitation were studied. Luminescence spectra reveal three UV-emitting peaks at about 310, 330, and 350 nm from which we conclude that Ce3+ occupies two distinct sites in ?-Sr2P2O7. The influences of the doping concentration, the temperature, and the excitation wavelength on the luminescence of Ce3+ at the Ce(I) and Ce(II) sites together with the decay characteristics are discussed. The light yield under x-ray excitation is found to be around 10?000 photons/MeV.

Subject

cerium
cerium compounds
doping profiles
luminescence
phosphors
sodium compounds
strontium compounds
ultraviolet radiation effects
X-ray effects

To reference this document use:

http://resolver.tudelft.nl/uuid:858534fe-7e68-49a3-8d67-a47a955ec82d

DOI

https://doi.org/10.1063/1.3500333

Publisher

American Institute of Physics

ISSN

0021-8979

Source

http://jap.aip.org/resource/1/japiau/v108/i8/p083527_s1