| Nano-material is one type of new science, and nano-structure material is one type of special material which has very unique structure, distinctive property and extensive potential. Electro-deposition method is one kind of up-to-date way to fabricate materials, and template technique owns more advantages than other techniques when it is used in preparation of nano-structure materials.In this dissertation, firstly, preparation, structure and optical properties oftemplates--anodic alumina membranes (abbreviated as AAM) with nano-porearrays were studied intensively. Then electro-deposition preparation and mechanism of cadmium selenide (CdSe) thin films were investigated. At last, CdSe nano-wire arrays in AAM with nano-pore arrays were prepared and characterized by template-electro-deposition method which is one kind of up-to-date way and has merits of both template technique and electro-deposition method.The main results and conclusions acquired from the dissertation are as follows:(1) AAM templates with nano-pore arrays were fabricated in different anodic oxidative conditions by anodic oxidation of aluminum foils, so the pores in AAM templates might have different diameters, different densities, different depths and different aspect ratios. The effect of anodic oxidative conditions such as type, concentration and temperature of electrolyte, voltage and time of anodic oxidation on diameter, density, depth and aspect ratio of pores in the as-grown AAM templateswere studied intensively. It is possible to prepare AAM templates with nano-pore arrays whose qualities can be controlled randomly.(2) The images of AAM were characterized by scanning electron microscope (SEM), transmission electron microscope (TEM) and atom force microscope (AFM). The results indicated that pores in the as-prepared AAM templates owned nearly the same diameter, parallel arrangement, huge density and formed nano-pore arrays. It is a very excellent basis for template-electro-deposition preparation of CdSe nano-wire arrays.(3) Optical properties of AAM with nano-pore arrays were investigated by the measurements of UV-visible absorption spectrum and photoluminescence (PL) curve, which were the foundation to study optical properties of CdSe nano-wire arrays/AAM composite, CdSe nano-wire arrays and CdSe nano-wire. The UV-visible absorption spectrum showed the as-prepared AAM templates were transparent within visible light, and the PL curve showed the as-prepared AAM templates had a blue PL band in wavelength range of 400nm~60Qnm which originated from singly ionized oxygen vacancies.(4) CdSe thin films were respectively fabricated by electro-deposition in seleneous acid (H^SeOs) solution and selenosulfite ion (SeSOs ") solution. The composition and mechanism of CdSe thin films were explored by X-ray energy dispersion analysis (EDS) and X-ray penetration spectrum (XPS). The effect of electro-deposition conditions such as potential (vs. SCE) of cathode, concentration of electrolyte on composition and mechanism of as-fabricated CdSe thin films were gained, which provided experimental foundation and ideal basis for template-electro-deposition preparation of CdSe nano-wire arrays.(5) CdSe nano-wire arrays/AAM composite, CdSe nano-wire arrays and CdSe nano-wire were prepared by template-electro-deposition in seleneous acid (HaSeCh) solution and selenosulfite ion (SeSOa2") solution. Then the image, composition and structure of those products were investigated by SEM, TEM, EDS, XPS and X-ray diffraction (XRD). The results indicated that CdSe nano-wires in the as-preparedCdSe nano-wire arrays/AAM composites owned nearly the same diameter, normal arrangement, high density and formed nano-wire arrays.(6) Optical properties of CdSe nano-wire arrays/AAM composite were investigated by the measurements of UV-visible absorption spectrum, PL curve and resonance Raman spectrum. The UV-visible absorption spectrum showed the composite owned one absorptive edge at 720nm or so which originated from band gap of CdSe na...
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