Thermoluminescence properties of nanopowder

Preparation methods of thermoluminescent materials for dosimetric applications: An overview

“…Finally, the product is pulverized and sieved, selecting powder with desired grain size (Zumdahl, 2009). This method has been used by some authors for synthesizing diverse materials such as alkaline earths sulfides (Rao, 1986), metallic oxides (Kumar et al, 1994;Azorín-Vega et al, 2007), strontium aluminate (Chengkang et al), calcium phosphate (Madhukumar et al, 2007), lithium fluoride (Vu Thi Thai Ha et al, 2007) or calcium sulfate .…”

“…TiO 2 is produced by the coprecipitation method (Azorín-Vega et al, 2007) starting from titanium oxysulfate-sulfuric acid complex (TiOSO 4 Á H 2 SO 4 Á H 2 O) and a chloride of the dopant. Interest in this method to produce TiO 2 arises from its relatively low cost and the approach that allows the chemical content and concentration ratio of the elements of the derived powders to be tailored, with ready fabrication into different solutions.…”

Synthesis and Thermoluminescent Characterization of Ceramics Materials

“…As a result, the luminescence quantum efficiency is extremely importance to the synthesis conditions. Luminescent semiconductors form an important class of phosphors with applications in the thermoluminescent (TL) phenomenon studies Azorín et al, 2007).…”

“…The TL results of the recently reported nanomaterials have revealed very imperative characteristics such as high sensitivity and saturation at very high doses (Noh et al, 2001;Sahare et al, 2007;Salah et al, 2011). However, recent studies on different luminescent ceramic micro or nanomaterials showed that they have a potential application radiation dosimetry using TL technique (Azorín et al, 2007). These materials spread over various applications such as medical imaging, high energy physics, and nondestructive testing.…”

Obtenção de filmes finos de TiO2 nanoestruturado pelo método dos precursores poliméricos

“…O TiO 2 é um semicondutor do tipo n estudado tanto dopado 1,2 quanto puro, 3 especialmente quando apresenta estrutura cristalina do tipo anatase, dada a variedade de possíveis aplicações, como sensores de gases, guias de onda, células solares, entre outros. Filmes deste óxido são componentes da Dye-sensitized solar cell (DSSC), 4 um modelo de célula solar que vem sendo intensivamente estudado e otimizado desde 1991.…”