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Microcrystallines of bio-upconversion (UC) phosphor NaYF4:Yb3+/Er3+ were prepared by the complex precipitation method and the hydrothermal method in the presence of sodium citrate. The precusor synthesized by the complex precipitation method was annealed at different temperature, and another was hydrothermal treated at different time. The structure, morphology and upconversion fluorescence of the...
Single crystal In(OH)3 nanorods and nanocubes were hydrothermally synthesized from aqueous InCl3 solution. Indium hydroxide, In(OH)3, was precipitated at 90°C for 12 h and was changed into a transient In2O3 phase upon calcination at 400°C for 1h in air. The increase of the concentrations of indium chloride tetrahydrate would promote the formation of cube-like nanostructures. In order to understand...
Nanoparticles and nanostructured dendritic silver bismuth sulfide were successfully produced from silver acetate, bismuth nitrate, and thiosemicarbarzide in ethylene glycol by 140-200??C solvothermal reactions for 24-72 h. The phase was detected using X-ray diffraction (XRD) and selected area electron diffraction (SAED). Their SAED patterns were also in accordance with those of the simulations. Scanning...
Gd2O3:Eu scintillators with nano-crystalline structures were successfully synthesized through a hydrothermal process and subsequent calcination treatment as a converter for X-ray imaging detectors. In this work, Eu-doped Gd2O3 nano-crystalline powders as a function of calcination temperatures and times were prepared by a hydrothermal process and subsequent calcination in the electrical furnace. Scintillation...
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