近年來氧化鋅奈米結構的蓬勃發展，對其光學、電學、結晶性質，已多有琢磨，在光電應用上也備受潛力。但是如果想要有更好的光電應用，必須先製作出低阻抗的p型氧化鋅，這是目前的一大難題，仍待克服。本論文主要研究氧化鋅奈米柱與鉀摻雜之氧化鋅奈米柱，本研究係利用化學浴沉積法在AZO玻璃基板上成長一維氧化鋅奈米柱陣列。本實驗以硝酸鋅與四氮六甲圜(HMTA)濃度1:1以去離子水配置成水溶液，並放入壓力釜(autoclave)中成長氧化鋅奈米柱陣列，固定其反應時間與溫度分別為8小時及90 ℃，合成出高品質之一維氧化鋅奈米柱，並探討其物理特性。
在鉀摻雜實驗中則另外添加醋酸鉀當作摻雜物(dopant)，分別配置2~10%做為樣品，然後做熱退火處理(post-annealing)探討是否會激活(activate)雜質成為以電洞為主要載子的p-type氧化鋅，以實現未來應用的可能性。

Zinc oxide (ZnO) is a highly studied oxide semiconductor having excellent optical and electrical properties. These properties can be improved by various methods among them doping is popular to make material either p or n type (depends on position of element in periodic table). Here potassium (K) doped ZnO nanorods have been synthesized by aqueous solution method and its various properties were compared with undoped ZnO nanorods.
In this study, K doped ZnO nanorods and undoped ZnO nanorods were grown on AZO substrate, compared on the basis of morphology, structure, and optical behavior (photoluminescence (PL) and Raman). Furthermore, the doping concentration (2%, 4%, 6%, 8%, and 10%) dependence on these properties was also studied. The change in ZnO morphology was observed from nanorods to nanoribbons as doping concentration increase. PL also showed the shallow acceptor level from free-to-neutral-acceptor transition as doping.

論文審定書 ------------------------------------------------------------------------------------- i
致謝 ---------------------------------------------------------------------------------------------- ii
摘要 --------------------------------------------------------------------------------------------- iii
Abstract ----------------------------------------------------------------------------------------- iv
目錄 ---------------------------------------------------------------------------------------------- v
圖表目錄 -------------------------------------------------------------------------------------- vii

第一章 緒論 ---------------------------------------------------------------------------------- 1

第二章 基礎理論 ---------------------------------------------------------------------------- 3
2 - 1 氧化鋅的基本性質 ---------------------------------------------------------- 3
2 - 2 氧化鋅的發光機制 ---------------------------------------------------------- 6
2 - 3 氧化鋅的摻雜 ---------------------------------------------------------------- 7
2 - 4 水溶液法 ( Aqueous chemical growth ) 介紹 -------------------------- 9

第三章 實驗方法與流程 ----------------------------------------------------------------- 13
3 - 1 實驗步驟 --------------------------------------------------------------------- 14
3 - 2 實驗原理與分析 ------------------------------------------------------------ 16
3-2.1 X光繞射分析儀 ( X - ray diffraction ) ------------------------------- 16
3-2.2 掃描式電子顯微鏡 ( Scanning electron microscopy ) ------------ 18
3-2.3 光致螢光光譜 ( Photoluminescence spectroscopy ) --------------- 20
3-2.4 拉曼光譜 ( Raman spectroscopy ) ------------------------------------ 22

第四章 實驗結果與討論 ----------------------------------------------------------------- 24
4 - 1 X光繞射分析 ---------------------------------------------------------------- 24
4 - 2 掃描式電子顯微鏡分析 --------------------------------------------------- 28
4 - 3 光致螢光光譜分析 --------------------------------------------------------- 31
4 - 4 拉曼光譜分析 --------------------------------------------------------------- 38

第五章 結論 -------------------------------------------------------------------------------- 40

參考文獻 -------------------------------------------------------------------------------------- 41

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