Structural and optical characteristics of α-BiO/ BiO:Ho thin films deposited by pulsed laser deposition for improved green and near-infrared emissions and photocatalytic activity.

Pulsed laser deposited films on glass substrate deposited at different substrate temperatures (T) and partial pressures of oxygen, Ho-doped BiO films were produced. The degradation capability of the Rhodamine B dye using the BiO:Ho films was explored. The impact of the BiO:Ho content on the dye degradation performance was analyzed.

Role of Li ions on the surface morphology and thermoluminescence properties of Y O :Tm nanophosphor.

Y O :Tm and Li co-doped Y O :Tm nanopowders were synthesized using the solution combustion method for possible application in ultraviolet (UV) light dosimetry. X-ray diffraction revealed the crystallite sizes to be in the range 21-44 nm and 30-121 nm using the Scherrer equation and the W-H plot relationship, respectively. Field emission scanning electron microscopy confirmed that, after co-doping with 4 mol% concentration of Li , the particles were spherical in nature with an average size of ~30 nm.

Synthesis characterization and luminescence studies of gamma irradiated nanocrystalline yttrium oxide.

Nanocrystalline Y2O3 is synthesized by solution combustion technique using urea and glycine as fuels. X-ray diffraction (XRD) pattern of as prepared sample shows amorphous nature while annealed samples show cubic nature. The average crystallite size is calculated using Scherrer's formula and is found to be in the range 14-30 nm for samples synthesized using urea and 15-20 nm for samples synthesized using glycine respectively.