NDLI: Controlled synthesis of Li2B4O7:Cu for temperature sensing

Content Provider	Royal Society of Chemistry (RSC)
Author	Oliveira, Luiz C. Doull, Brandon A. Yukihara, Eduardo G. Wang, Deyin
Copyright Year	2013
Abstract	With the aim of developing a new phosphor for temperature sensing, the effect of different annealing processes and co-dopants (Ag, In, Dy or Ti) on the TL properties of copper-doped Li2B4O7 synthesized by Solution Combustion Synthesis was investigated. Compared with slow annealing, fast annealing induces a high temperature peak (∼310 °C) in the TL curve of Li2B4O7:Cu. The defect structure of Li2B4O7:Cu synthesized by fast annealing is not reproducible, resulting in high sample-to-sample variability in the TL curves. We tested In, Dy, Ti or Ag as co-dopants in Li2B4O7:Cu and found that Ag co-doping resulted in increased TL intensity and reproducible TL curves from sample to sample. In addition, the relative intensity of the main TL peak at ∼200 °C can be controlled by adjusting the Ag doping concentration. Finally, the effect of light exposure on irradiated samples and the room temperature fading over time have been examined. Li2B4O7:Cu,Ag showed low room light sensitivity and almost no fading over a 24 h storage period in the dark. These features support the application of Li2B4O7:Cu,Ag for temperature sensing.
Starting Page	26127
Ending Page	26131
Page Count	5
File Format	HTM / HTML PDF
ISSN	20462069
Volume Number	3
Issue Number	48
Journal	RSC Advances
DOI	10.1039/c3ra44575e
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Fish measurement Dopant Nucleic acid thermodynamics
Content Type	Text
Resource Type	Article
Subject	Chemistry Chemical Engineering

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