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Hydrothermal Route To Semiconductor Functional Material One-dimensional Nanostructures: Synthesis, Characterization And Their Properties

Posted on:2008-11-06Degree:MasterType:Thesis
Country:ChinaCandidate:J LiuFull Text:PDF
GTID:2121360215978434Subject:Materials Physics and Chemistry
Abstract/Summary:PDF Full Text Request
One-dimensional (1-D) nanostructures have drawn continuous research attention because of their unique electrical, optical and magnetic properties different from that of bulk and nanoparticles as well as their potential applications in mesoscopic research and nanodevices. The main challenge in this area is how to precisely controlthe sizes, dimensionalities, compositions and crystal structures in nanoscale, which may serve as a powerful tool for the tailoring of physical/chemical properties of materials in a controllable way.Synthesizing nano-materials by hydrothermal method is a noticeable field in material science. By this friendly method, well discreted and crystalline nanoparticles can be prepared, as well as toxic reaction can also be taken in this system. Nowadays, synthesizing new compound and exploring new synthesis route are the focus of the hydrothermal method. In this paper, different experiment routes and the reaction conditions in hydrothermal method were researched, by which kinds of semiconductor functional materials with One-dimensional nanostructures were synthesized.Zinc Oxide (ZnO) nanomaterials with different morphologies were obtained by adjusting the concentration of Ethylenediamine (En) using anion surfactant sodium dodecyl benzene sulfonate (SDBS), as structure-atemplate agent. It has been observed that the surfactant SDBS really influenced the original formation of sheet-structure of the products and the En influenced the growth direction of the products. The products with different morphologies and optics character were obtained in the different concentration of En.Used both as a development SDBS surfactant has a dual role as the reaction, effects from the use of autogenous-template to control the formation of lead sulfide (PbS) nanobelts. Experiments show that the formation of intermediate product surfactant solubility of the product has a certain influence on the final morphology and the reaction time is the decision of the purity of the product.
Keywords/Search Tags:Semiconductor Functional Material, One- dimensional nanostructures, hydrothermal synthesis, autogenous-template
PDF Full Text Request
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