硫的成分對硫化鋅/氧化鋅殼層奈米管之形貌研究

The Influence of Sulfur Concentration on the Morphologies of ZnS/ZnO Core-shell Nanotubes

王凱彥(Kai-Yen Wang)

指導教授 ： 陳祥

國立暨南國際大學/科技學院/應用材料及光電工程學系/碩士(2017年)

摘要

本實驗首先以水熱法在矽基板上生長氧化鋅奈米柱，接著同樣也是透過水熱法的方式在氧化鋅奈米柱表面生長硫化鋅殼層。進一步地，使用蝕刻的方式來將殼層結構中的氧化鋅去除，進而形成中空的奈米管結構。為了研究硫化鋅殼層之生長時間對於其表面形貌以及特性，使用了多種分析如: 場發射掃描式電子顯微鏡(FESEM)、X光繞射能譜儀(XRD)、光致發光光譜分析儀(PL) 化學分析電子能譜儀(XPS)、原子力顯微鏡分析(AFM)與接觸角實驗等等，來進行分析。
研究分析結果顯示，硫化鋅殼層之生長時間對於其表現形貌之特性是有影響的，可以在氧化鋅奈米柱之表面觀察到由粗糙的顆粒所組成的外殼有更緻密的情形，硫化鋅殼層結構對於疏水性也有著明顯得提升。而增加生長硫化鋅殼層之生長溶液濃度，雖然對於其形貌沒有明顯的差距，但透過其他分析可以發現，濃度的不同對於形成硫化鋅殼層的效率是有差別的。

關鍵字

水熱法 ； 氧化鋅奈米柱 ； 硫化鋅 ； 殼層結構 ； 奈米管結構 ； 矽基板

並列摘要

In this thesis, we fabricated ZnS/ZnO core-shell structures on silicon substrate with various conditions. We first grew ZnO nanorods (NRs) on Si substrate and then deposited ZnS layers on the surface of ZnO NRs. Furthermore, to obtain the hollow structure of nanotube, we etched away ZnO from the ZnS/ZnO core-shell structure. To study the influence of the growth time of ZnS shell on morphologies and characteristics, multiple analyses including FESEM, XRD, PL, XPS, AFM and surface contact angle measurement were performed. Results show that the morphology varied the growth time of ZnS shell, composed of the coarse particles and denser than the ZnO NR. Furthermore, ZnS layer exhibited stronger hydrophobic properties than ZnO NRs. Moreover, with increasing of the concentration of the growth of ZnS core-shell, there is no significant variation for its morphology. However, other material analyses show that divergence occurred among various smaples.

並列關鍵字

Hydrothermal method ； Zinc oxide nanorod ； Zinc sulfide ； core-shell ； nanotube ； Si

參考文獻

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