本研究利用氧化鋅晶體極性切面(polar facets)的非等向性成長特性，形成含有一維奈米線光學微腔之半導體微奈米結構，改變製備條件以調控激子放射發光性質，討論可能的發光機制並評估其中的激子貢獻。本研究目標包含：(i)發展製備策略，以蒸氣傳輸(vapour-transport)法沉積微奈米尺寸氧化鋅，並調控光學微腔幾何；(ii)測定光致發光行為與樣品形貌幾何、樣品溫度以及激發強度的相關性；(iii)探討可能的發光機制。

In this study, the non-isotropic growth characteristics of the polar facets of zinc oxide crystals were used to form a semiconductor micro-nanostructure containing a one-dimensional nanowire optical microcavity, and the preparation conditions were changed to regulate the exciton emission properties. The luminescence mechanism and evaluate the exciton contribution. The objectives of this study include: (i) development of a preparation strategy for the deposition of micro-nano-sized zinc oxide by vapor transport and regulation of optical microcavity geometry; (ii) determination of photoluminescence behavior and sample morphology geometry, Correlation of sample temperature and excitation intensity; (iii) explore possible luminescence.

第1章 文獻回顧與問題研究. 1
1.1 鋅的性質與應用 2
1.2 氧化鋅奈米懸臂陣列 3
1.3 能隙結構與光致發光 5
1.4 微奈米尺度氧化鋅雷射 8
1.5 發光機制 8
1.6 微腔共振 11
1.7 微奈米尺度氧化鋅發光行為 13
1.8 研究動機 14
第2章. 實驗方法. 15
2.1雙加熱器統設計與架設. 15
2.2基板處理與實驗參數 16
2.2.1 儀器準備與基板處理 16
2.2.2 實驗流程 17
2.3室溫、變溫光致螢光(PL)量測系統架設 18
2.3.1儀器規格 18
2.3.2 室溫、變溫PL量測系統架設 19
第3章 實驗結果 22
3.1 製備條件與表面形貌 23
3.2 激發強度對螢光光譜的影響 (室溫大氣下觀察) 28
3.3 溫度對螢光光譜的影響(真空下觀察) 34
3.4 放射強度 44
3.5 螢光強度週期調變 48
第4章 結果與討論. 57
4.1 氧化鋅微奈米結構製備 57
4.2 發光機制 60
附錄A 自發放射與受激放射 67
附錄B 單根奈米梳分離實驗 68

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