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Proceedings Paper

Persistent luminescence in ZnGa2O4:Cr3+ transparent glass-ceramics
Author(s): V. Castaing; Morgane Pellerin; Atul D. Sontakke; Alberto Jose Fernández Carriónc; C. Chaneac; M. Allix; D. Gourier; B. Viana
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Paper Abstract

Given the increasing demand for optical in vivo bioimaging materials, persistent luminescence in the red/near infrared range is receiving particular attention. Within this work, several elaboration ways of ZnGa2O4:Cr3+, respectively by solid state, by microwave assisted hydrothermal synthesis and by glass crystallization have been carried out. Structural analysis shows that all methods lead to pure spinel structure. Powder micrometric material is obtained by solid state reaction while nanoparticles are obtained by the two other methods. In the case of the glass-ceramics process, the nanocrystals obtained are trapped in a glassy matrix. This kind of elaboration leads to nanoparticles with lower amount of defects, no surface contact with air and an increase signal of the persistent luminescence compared to disperse nanoparticles. These good persistent luminescence properties are well correlated to thermoluminescence glow curves analysis. Moreover, such glass ceramics can be used as a good tool to study more deeply the persistent luminescence process of nanoparticles in a transparent environment and samples are easier to characterize.

Paper Details

Date Published: 24 February 2017
PDF: 7 pages
Proc. SPIE 10105, Oxide-based Materials and Devices VIII, 101050R (24 February 2017); doi: 10.1117/12.2253854
Show Author Affiliations
V. Castaing, PSL Research Univ., Chimie ParisTech-CNRS, Institut de Recherche de Chimie Paris (France)
Morgane Pellerin, PSL Research Univ., Chimie ParisTech-CNRS, Institut de Recherche de Chimie Paris (France)
Sorbonne Univ., Univ. Pierre et Marie Curie-CNRS, Lab. de Chimie de la Matière Condensée de Paris (France)
Atul D. Sontakke, PSL Research Univ., Chimie ParisTech-CNRS, Institut de Recherche de Chimie Paris (France)
Alberto Jose Fernández Carriónc, CNRS, CEMHTI UPR3079, Univ. d'Orléans (France)
C. Chaneac, Sorbonne Univ., Univ. Pierre et Marie Curie-CNRS, Lab. de Chimie de la (France)
M. Allix, CNRS, CEMHTI UPR3079, Univ. d'Orléans (France)
D. Gourier, PSL Research Univ., Chimie ParisTech-CNRS, Institut de Recherche de Chimie Paris (France)
B. Viana, PSL Research Univ., Chimie ParisTech-CNRS, Institut de Recherche de Chimie Paris (France)


Published in SPIE Proceedings Vol. 10105:
Oxide-based Materials and Devices VIII
Ferechteh H. Teherani; David C. Look; David J. Rogers, Editor(s)

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