| In this dissertation, inorganic nano-(micro-) crystal thin films were prepared on self-source metal foil substrate through hydrothermal method. Aluminum hydroxide is excellent inorganic filler/flame retardant and raw material for making Al2O3. Nano-Al2O3 is widely used in catalyst support, IC chips etc. ZnSe has good projective performance, which is the best material for making photocell. Blue semiconductor laser and LED, made of ZnSe, are widely available for special applications.1. Thin films of constructed with aluminum hydroxide nanosheets were prepared on aluminum foil. XRD results showed that the samples were mainlyβ-AlOOH. The films were built up with aluminum hydroxide nano-sheets, which have thickness of about 30nm, length of 300-400 nm, and width of 100-200nm. The influence of various experimental parameters on the morphology of aluminum hydroxide nano-sheets has been investigated, including the concentration of hexamethylenetetramine (HMT), the addition of surfactant CTAB, the ratio of N, N-dimethylformamide (DMF) to water in the solvent, and the reaction time. The aluminum hydroxide nano-sheets became thinner when the concentration of DMF was increased, and aluminum hydroxide flower-like nano-sheets assemblies would appear on Al foil at higher concentration of HMT. Aluminum hydroxide nano-plates or nano-sheets would become thicker when CTAB was added in the system.2. ZnSe microcrystal thin films were synthesized on zinc foil through hydrothermal method. The experimental results showed that rodlike microcrystals were obtained in the mixed solvent of EG and water (1:1, v/v). When no EG was added in the solvent, ZnSe nanoparticles were deposited on Zn foil. The ZnSe nanoparticles would aggregate into hollow spheres in the presence of higher concentration of CTAB. The samples were characterized using XRD and SEM.
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