利用化學溶液法成長ZnO/TiO2及ZnO/CdS核殼奈米柱之研究

Growth of ZnO/TiO2 and ZnO/CdS core-shell nano-rods by chemical solution method.

陳耀宗(Yao-Zong Chen)

指導教授 ： 王宏文

中原大學/理學院/化學研究所/碩士(2012年)

https://doi.org/10.6840/cycu201200702

摘要

氧化鋅（ZnO）具有不對稱的晶體結構、極寬的能隙、非化學計量比的缺陷結構、高透光性、高折射率與非線性光學係數，以及具有優秀的介電、壓電、焦電、聲光及光電等性質的智慧型材料。奈米結構氧化鋅不但成本低廉且容易合成，近十年間，如奈米線、奈米環、奈米帶、和奈米梳子的合成亦已陸續被開發成功，其中以奈米線和奈米柱的應用最為廣泛。
本研究目的在於利用化學溶液法，相同等比濃度硝酸鋅與六亞甲基四胺混合比之下在矽基材成長奈米氧化鋅。在矽基板上進行ZnO/TiO2奈米柱製程，研究不同浸製TiO2時間，而形成ZnO/TiO2奈米柱表面結構與光激發變化。在矽基板上進行ZnO/CdS奈米柱製程，研究不同浸製CdS時間，而形成ZnO/CdS奈米柱表面結構與光激發變化。

關鍵字

硫化鎘 ； 化學溶液法 ； 氧化鋅 ； 二氧化鈦

並列摘要

Asymmetric crystal structure of zinc oxide (ZnO) has a very wide bandgap, the defect structure of non-stoichiometric, high transmittance, high refractive index and nonlinear optical coefficient, and has excellent dielectric, piezoelectric wisdom of the nature of the profiles of the pyroelectric, acousto-optic and optoelectronic materials. Nanostructures of zinc oxide is not only low-cost and easy synthesis of the past decade, such as nanowires, nano-ring with nanometer and nano comb synthesis has also been land continued the successful development of which the nanowires and nano the most widely used in the column.

The purpose of this study is to use the chemical solution method, the growth of nano- zinc oxide on the silicon substrate under the mixing ratio of the same geometric concentration of zinc nitrate and hexamethylene tetramine. The ZnO/TiO2 nano-rods process , in the silicon substrate of different impregnated TiO2 time , the formation of ZnO/TiO2 nano-rods surface structure and optical excitation changes. The ZnO/CdS nano-rods process, the silicon substrates of different impregnated CdS time, and the formation of ZnO/CdS nano-rods surface structure and optical excitation changes.

並列關鍵字

cadmium sulfide ； titanium dioxide ； zinc oxide ； the chemical solution method.

參考文獻

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