臺灣博碩士論文加值系統

本論文最主要目的是研究蕭基界面之表面電漿共振效應隨溫度變化的情形，研究方法是利用衰減全反射法來激發表面電漿共振。在過去幾年中，我們建立了一個溫度模型，利用電子－聲子散射以及電子－電子散射機制，來解釋自由電子金屬的光學性質隨溫度的變化，並模擬在不同溫度下與不同條件的變化情形。在實驗部份我們將針對不同波長的光源作為入射光，不同種類的金屬與半導體，不同金屬與半導體薄膜的厚度，並改變sample的溫度，量測得到在不同參數的情形下之反射率曲線，以了解各個參數對於表面電漿共振的影響，分析溫度模型與實驗量測所得結果，並與理論值所模擬的加以比較。

The principal goal of the thesis is to study the temperature-dependent surface plasmon resonance effect on Schottky junction. We study this effect by using attenuation total reflection (ATR) to excite the surface plasmon resonance. In the last several years, we have established a theoretical model, which can account for the temperature variation of the optical properties of metal, and to simulate the variation at different temperatures and different conditions. In our experiment, we use laser light with different wavelengths as the light source, and change the temperatures of samples in order to measure the reflectivity curves with different kinds and thickness of metals and semiconductors. To understand which parameters affect the surface plasmon resonance, we analyze the results that measured after experiments and compare them with theoretical simulation.

誌謝…………………………………………………………………Ⅰ
摘要…………………………………………………………………Ⅱ
Abstract…………………………………………………………….Ⅲ
目錄…………………………………………………………………Ⅳ
圖目錄………………………………………………………………VI
一、前言………………………………………………………………1
二、原理………………………………………………………………4
2-1 表面電漿的基本理論………………………………………4
2-1-1 表面電漿波的簡介…..…………..…………………4
2-1-2 表面電漿波的色散關係…………..………………..6
2-1-3 表面電漿波的激發………………..………………10
2-2 金屬-半導體接面的基本理論……………………………14
2-2-1 蕭基能障的形成……………….………………….14
2-2-2 蕭基接面的電流傳輸…………………….……….16
2-3 光電子放射的基本理論…………………………………..17
2-4 激發表面電漿於蕭基接面的研究………………………..19
2-5 表面電漿的相關應用……………………………………..23
2-5-1 在光電方面的應用………………………………..23
2-5-2 在光學方面的應用………………………………..23
2-5-3 在量測薄膜厚度方面的應用……………………..24
2-5-4 在光譜儀方面的應用…………………………….24
三、溫度模型……………………………………………………….25
3-1 多層系統的反射率……………………………………….26
3-2 在升溫情況的金屬和半導體的光學常數…………….…28
3-2-1 金屬的介電常數………………………………….28
3-2-2 半導體的介電常數……………………………….29
3-2-3 熱脹效應………………………………………….30
四、實驗架構及方法.…………………….……………………….31
五、實驗結果與討論……………………………………………….34
5-1 模擬結果………………………………………………….34
5-1-1 波長632.8nm………………………………………34
5-1-2 波長820nm……………………………………….39
5-1-3 波長1152nm………………………………………41
5-2 實驗結果………………………………………………….45
5-2-1 入射光波長為632.8nm……………………………45
5-2-2 入射光波長為820nm…………………………….52
5-2-3 變波長……………………………………………..59
5-3 實驗與模擬比較………………………………………….60
5-4 結果討論………………………………………………….71
六、結論……………………………………………………………...73
參考文獻…………………………………………………………….75

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