Share Email Print
cover

Proceedings Paper

Luminescence enhancement in LaPO4:Ce/CdTe nanocomposite scintillators
Author(s): Jigang Wang; Ryan Hall; Lun Ma; Wei Chen; Renfei Feng; Ramaswami Sammynaiken; Yongsheng Wang; Dawei He
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

Radiation detection demands new scintillators with high quantum efficiency, high energy resolution, and short luminescence lifetimes. Herein, we report the enhancement in the photoluminescence and x-ray luminescence from CdTe quantum dots in LaPO4:Ce/CdTe nanocomposites and their potential applications for radiation detection. The luminescence enhancement is attributed to energy transfer from LaPO4:Ce to CdTe quantum dots in the nanocomposites. LaPO4:Ce nanoparticles have a high stopping power for radiation but their emission is in the ultraviolet range that is reabsorbed in most polymer host materials. CdTe quantum dots have strong photoluminescence and size-tunable emissions but very weak scintillation emission due to their low stopping power. The combination of LaPO4:Ce nanoparticles and CdTe quantum dots takes the advantages of both materials to make a promising nanocomposite scintillator for radiation detection.

Paper Details

Date Published: 3 June 2013
PDF: 9 pages
Proc. SPIE 8725, Micro- and Nanotechnology Sensors, Systems, and Applications V, 87251Y (3 June 2013); doi: 10.1117/12.2015879
Show Author Affiliations
Jigang Wang, The Univ. of Texas at Arlington (United States)
Ryan Hall, The Univ. of Texas at Arlington (United States)
Lun Ma, The Univ. of Texas at Arlington (United States)
Wei Chen, The Univ. of Texas at Arlington (United States)
Renfei Feng, Canadian Light Source Inc. (Canada)
Ramaswami Sammynaiken, Univ. of Saskatchewan (Canada)
Yongsheng Wang, Beijing Jiaotong Univ. (China)
Dawei He, Beijing Jiaotong Univ. (China)


Published in SPIE Proceedings Vol. 8725:
Micro- and Nanotechnology Sensors, Systems, and Applications V
Thomas George; M. Saif Islam; Achyut K. Dutta, Editor(s)

© SPIE. Terms of Use
Back to Top