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Proceedings Paper

Optical properties and storage capabilities in AB2O4:Cr3+ (A=Zn, Mg, B=Ga, Al)
Author(s): S. K. Sharma; A. Bessiere; D. Gourier; G. Sraiki; B. Viana; P. J. Dereń; D. Rudnicka; A. Watras; N. Basavaraju; K. R. Priolkar; T. Maldiney; D. Scherman; C. Richard
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Paper Abstract

Red emitting long-lasting phosphorescence (LLP) material, are useful biomarker for small animal in vivo imaging. We report here our investigations on the optical features of chromium doped AB2O4 spinels (A=Zn, Mg and B=Ga, Al…) suitable for such applications. It is possible to tune the emission wavelengths of Cr3+ by a crystal field variation to be well centered in the biological window and it is also possible to adjust the traps depth in order to better control the release of the traps. These traps are therefore stable at room temperature and could be emptied by thermal or near infrared source making this material a potential new photostimulated/optically compound. Photoluminescence (PL) and thermally stimulated luminescence (TSL) studies are reported.

Paper Details

Date Published: 8 March 2014
PDF: 7 pages
Proc. SPIE 8987, Oxide-based Materials and Devices V, 89870J (8 March 2014); doi: 10.1117/12.2048836
Show Author Affiliations
S. K. Sharma, IRCP, CNRS, Ecole Nationale Supérieure de Chimie de Paris (France)
A. Bessiere, IRCP, CNRS, Ecole Nationale Supérieure de Chimie de Paris (France)
D. Gourier, IRCP, CNRS, Ecole Nationale Supérieure de Chimie de Paris (France)
G. Sraiki, IRCP, CNRS, Ecole Nationale Supérieure de Chimie de Paris (France)
B. Viana, IRCP, CNRS, Ecole Nationale Supérieure de Chimie de Paris (France)
P. J. Dereń, Institute of Low Temperature and Structure Research (Poland)
D. Rudnicka, Institute of Low Temperature and Structure Research (Poland)
A. Watras, Institute of Low Temperature and Structure Research (Poland)
N. Basavaraju, Goa Univ. (India)
K. R. Priolkar, Goa Univ. (India)
T. Maldiney, Unité de Technologies Chimiques et Biologiques pour la Santé, CNRS, Univ. Paris Descartes (France)
D. Scherman, Unité de Technologies Chimiques et Biologiques pour la Santé, CNRS, Univ. Paris Descartes (France)
C. Richard, Unité de Technologies Chimiques et Biologiques pour la Santé, CNRS, Univ. Paris Descartes (France)


Published in SPIE Proceedings Vol. 8987:
Oxide-based Materials and Devices V
Ferechteh H. Teherani; David C. Look; David J. Rogers, Editor(s)

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