Photoluminescence characteristics of rare earth-doped nanoporous aluminum oxide

Combustion synthesis: A suitable method to prepare doped materials for thermoluminescent dosimetry

“…Recently, there has been increased interest in rare-earth (RE) doped aluminum oxide materials, and the reason seems to be their potential use in photonic applications. These materials have been synthesized by sol-gel techniques (Kaplyanskii et al, 1998), ion beam implantation (Can et al, 1995), sonochemical preparation (Gedanken et al, 2000), solvent evaporation (Azorín et al, 2002), by electrochemical route (Azevedo et al, 2004) and combustion synthesis (CS) (Hirata et al, 2005). In particular, the CS method is an excellent technique for preparing crystalline materials because of its low cost, high yield and the ability to achieve high purity single or multiphase complex oxide powders in the as-synthesized state at low processing temperatures, and in a short reaction times (∼s) (García et al, 2001).…”

Fabrication, Structure and Properties of Nanostructured Ceramic Membranes

“…After chemical functionalising, PAA membranes can be utilised for catalytic (Cho et al, 2005) or optical (de Azevedo et al, 2004) purposes. Further, the porous film itself may be employed for filtration (Sano et al, 2003), gas separation (Lira & Patterson, 2002) or as a photonic crystal (Masuda et al, 2000).…”

Multifunctional possible application of the Er3+/Yb3+-coped Al2O3 prepared by recyclable precursor (aluminum can) and also by sol-gel process

“…The continuous evolution of research of these materials in nanoscale structures and well controlled devices, has led to research in rare earth (RE 3+ ) doped materials [5][6][7]. Thus, the luminescence of the RE 3+ has attracted much attention because of their potential applications in photonics due to their photoluminescent properties, known since the 20th century [8][9][10][11].…”