量子點的生醫感測與溫度檢測應用

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姓名

高銥岑(Yi-Tsen Kao) 查詢紙本館藏

畢業系所

電機工程學系

論文名稱

量子點的生醫感測與溫度檢測應用
(The Applications of Biosensor and Thermometer in Quantum Dot Systems)

相關論文

★ 矽鍺/矽異質接面動態臨界電壓電晶體及矽鍺源/汲極結構之研製	★ 量子點的電子能階
★ 應用於數位電視頻帶之平衡不平衡轉換器設計	★ 單電子電晶體之元件特性模擬
★ 半導體量子點之穿隧電流	★ 有機非揮發性記憶體之量測與分析
★ 鍺奈米線與矽奈米線電晶體之研製	★ 選擇性氧化複晶矽鍺奈米結構形成鍺量子點及在單電子電晶體之應用
★ 以微控制器為基礎的智慧型跑步機系統研製	★ 單電子電晶體耦合量子點的負微分電導效應
★ 單電子電晶體的熱電效應	★ 多量子點系統之熱電效應
★ 多量子點系統之熱整流效應	★ 單電子電晶體在有限溫度下的模擬
★ 分子電晶體之穿隧電流與熱電效應	★ 串接耦合量子點之熱電特性

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摘要(中)

在本論文中，我們藉由Anderdson model及?帝旭格林函數的技巧來探討單電子電晶體的微分電導譜線特性，希望能將單電子電晶體應用在生醫感測與溫度檢測的領域。在生醫感測的部分，利用金屬奈米粒子包覆量子點殼層的奈米結構，觀察平行耦合量子點的微分電導譜線。我們會發現金屬奈米粒子造成的電子-電漿子交互作用(EPIs)會修正量子點能階、量子點內(間)庫倫交互作用力、電子跳躍強度以及穿隧率，同時也會在微分電導譜線看到電漿子輔助穿隧的機制。在溫度檢測的部分，我們與過去的文獻做比較，利用一般的單量子點奈米結構，探討微分電導譜線與溫度的關係，觀察量子點內庫倫交互作用力、穿隧率以及電位勢造成的量子點能階偏移對微分電導譜線半高寬與溫度的比值有何影響，看是否能如同文獻將微分電導譜線應用於溫度檢測。

摘要(英)

In this thesis we have theoretically studied the transport properties of a metal core/semiconductor shell quantum dot molecule (QDM) embedded in a matrix connected to metallic electrodes in the framework of Keldysh Green function technique. The effects of the electron plasmon interactions (EPIs) on the tunneling current spectra of QDM are examined. The energy levels of the QDs, intradot and interdot Coulomb interactions, electron interdot hopping strengths, and tunneling rates of QDs are renormalized by the EPIs. The differential conductance spectra show peaks arising from the plasmon assisted tunneling process, intradot and interdot Coulomb interactions, and coherent tunneling between the QDs. We also discussed the application of QD thermometer. We found that the differential conductance of tunneling current is highly sensitive to physical parameters. Such a feature indicates that the measurement of differential conductance may not a good tool to design nanothermometer. Instead of differential conductance, we propose that Seebeck coefficient has the promising potential to design QD thermometer.

關鍵字(中)

★ 量子點生醫感測

關鍵字(英)

★ quantum dot biosensor

論文目次

第一章導論 1
1-1量子點的簡介與應用 1
1-2研究動機 3
第二章金屬奈米粒子包覆量子點殼層之量子元件系統模型4
2-1 理論模型 4
2-2 EPIs對穿隧電流之影響 8
2-3金屬奈米粒子的簡介 13
2-3-1 金屬奈米粒子之應用 15
2-2-3 奈米粒子包覆半導體量子點之特性 16
第三章平行量子點系統的電漿效應 19
3-1 不考慮EPIs的穿隧電流譜線分析 21
3-2 EPIs對穿隧電流譜線之影響 28
3-3 有限電子跳躍強度下對EPIs電流譜線之影響 34
第四章量子點的溫度檢測應用 38
4-1量子點內庫倫交互作用力對微分電導譜線的影響 40
4-2左右電極穿隧率對微分電導譜線的影響 43
4-3電位勢差對量子點的能階偏移 45
第五章結論 48
參考文獻 50

參考文獻

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指導教授

郭明庭(M.-T. Kuo)

審核日期

2014-6-27

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