Preparation and luminescence properties of CaSnO3:Sm³⁺ phosphor emitting in the reddish orange region

Authors

Bingfu Lei, Changchun Institute of Optics Fine Mechanics and Physics Chinese Academy of Sciences
Bin Li, Changchun Institute of Optics Fine Mechanics and Physics Chinese Academy of Sciences
Haoran Zhang, Changchun Institute of Optics Fine Mechanics and Physics Chinese Academy of Sciences
Wenlian Li, Changchun Institute of Optics Fine Mechanics and Physics Chinese Academy of Sciences

Document Type

Article

Publication Date

1-1-2007

Abstract

A novel reddish orange light emitting phosphor, CaSnO3:Sm3+, is prepared via a two-step approach including the room temperature synthesis of CaSn(OH)6 precursor and then convert it into CaSnO3 by calcination and its optical properties are systematically investigated. X-ray diffraction, photoluminescence, long persistent phosphorescence and thermoluminescence spectra are used to characterize the synthesized phosphor. This phosphor is found to be well-crystallized by calcination at 750 °C for 3 h. Photoluminescence measurement indicates that Sm3+-doped CaSnO3 shows an overall reddish orange emission with a CIE values of x = 0.57, y = 0.37. After irradiation under the 254-nm UV light, the 4G5/2 to 6HJ (J = 5/2, 7/2, 9/2, 11/2) afterglow emissions of Sm3+ are obviously observed. Furthermore, the thermoluminescence and the possible mechanism for the long persistent phosphorescence (LPP) of the CaSnO3:Sm3+ phosphor is also discussed in this paper. © 2006 Elsevier B.V. All rights reserved.

Publication Source (Journal or Book title)

Optical Materials

First Page

1491

Last Page

1494

Recommended Citation

Lei, B., Li, B., Zhang, H., & Li, W. (2007). Preparation and luminescence properties of CaSnO3:Sm³⁺ phosphor emitting in the reddish orange region. Optical Materials, 29 (11), 1491-1494. https://doi.org/10.1016/j.optmat.2006.07.011