Technique for self-assembly of tin nano-particles on anodic aluminum oxide (AAO) templates

Scopus: "Various pore sizes of anodic aluminum oxide (AAO) were fabricated using a two-step anodization process. AAO pores with diameters ranging from 5 to 500 nm were formed in diluted electrolyte solutions of sulfuric acid, oxalic acid, and phosphoric acid.

Irregularly shaped tin particles in nano sizes were formed on the AAO using a thermo-vaporizing process. Tin spheres with diameters ranging from 3 to 500 nm were then obtained by reflowing vaporized AAO in silicate oil. A transmission electron microscope (TEM JEOL 2000) was employed to characterize the crystalline structure of a tin sphere with 18 nm diameter."

Low temperature solvent thermal synthesis of indium tin oxide nano-powder

Scopus: "Indium Tin Oxide (ITO) nano-powder was prepared with a convenient solvent thermal method. A hydroxide precursor was first prepared from indium chloride and tin chloride by using ammonia as precipitating agent.

The samples were characterized with scanning electron microscopy(SEM), X-ray diffraction(XRD) and Nano-particle size analyzer(Zetasizer Nano ZS).The results shows that the ITO nano-powder is cubic crystalline phase, with an average size smaller than 100 nm. Compared with other methods, the present solvent thermal method can produce ITO nano-powders with high purity and uniform particle size. The manipulation is very simple and convenient and no calcination process is needed.

The reaction temperature can be as low as 190'C , which is by far the lowest temperature in ITO nano-powder preparation. The sample also gives a good dispersion property benefited from the unique solvent thermal reaction environment"