Green up-conversion emission in Er3+:BaTiO3 sol-gel powders

Green and red upconversion luminescence in Er3+-doped and Er3+/Yb3+-codoped SrTiO3 ultrafine powders

“…There has been an intense interest in the investigation of ultrafine and nanocrystalline oxide upconversion materials these years for both fundamental research and potential applications in upconversion phosphors, detectors for infrared radiation, fluorescent labels for sensitive detection of biomolecules and two-photon confocal-microscope imaging [1][2][3][4][5][6][7][8][9][10][11]. Trivalent rare earth ions such as Er 3+ , Tm 3+ , Ho 3+ and Yb 3+ are doped as absorption and (or) emission centers in these materials.…”

“…Numerous host matrixes, such as Y 2 O 3 [1][2][3][4], Gd 2 O 3 [15], ZrO 2 [5][6][7], TiO 2 [8] and BaTiO 3 [8][9][10], have been investigated as host matrix for upconversion phosphors due to their low vibrational frequencies.…”

Preparation and Luminescent Properties of Eu-Doped BaTiO₃ Thin Films by Sol-Gel Process

“…Because of the intrinsic capability of the perovskite structure to host ions of different size, a large number of different dopants can be accommodated in the lattice. In the past few years, the ABO 3 -like compounds with perovskite structure such as SrTiO 3 , BaTiO 3 , CaTiO 3 doped with rare-earth ions have also revealed to have very interesting luminescent properties [7][8][9]. The sol-gel processing is a relative easy and economical way for making uniform large size, high quality stoichiometric thin film phosphors [10][11].…”

Preparation and luminescent properties of Eu-doped BaTiO3 thin films by sol–gel process

“…Because of the intrinsic capability of the perovskite structure to host ions with different sizes, a large number of different dopants can be accommodated in the lattice. In the past few years, ABO 3 -like compounds with the perovskite structure such as SrTiO 3 [7,8], BaTiO 3 [9], CaTiO 3 [10] doped with rare earth ions have also revealed to have very interesting luminescent properties.…”