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研究生: 李傳浩
Lee, Charles Chuanhao
論文名稱: 分子級電子元件製造
Microfabrication of molecular electronic devices
指導教授: 謝馬俐歐
Mario Hofmann
學位類別: 碩士
Master
系所名稱: 工學院 - 材料科學及工程學系
Department of Materials Science and Engineering
論文出版年: 2015
畢業學年度: 103
語文別: 英文
論文頁數: 40
中文關鍵詞: 石墨烯
外文關鍵詞: graphene, transistor, self assembly material, molecular electronic, bloodborne
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  • 本論文建立一套石墨烯元件之製程,透過此法可於晶圓上製造複數分子級元件,進一步能製成積體電路。在本論文中完成了2-terminal元件,並用電子顯微鏡與光學顯微鏡及半導體分析儀分析其各項性質。

    Miniaturization of electronic components has driven development in the semiconductor industry for the last 50 years. This scaling is becoming more and more challenging because we are starting to reach atomic dimensions. “Molecular electronics” is a new approach to address these issues by directly tailoring the atomic structure of components to impart certain electronic functionality through chemical means. This idea has afforded the vision of combining high performance, economic production, and ultra-high device density. Despite the potential, advances in this area have been limited because it is hard to produce molecular electronics circuits.
    This thesis describes a method of fabrication that enables the parallel production of graphene-based vertical molecular scale devices, which is a necessary step towards circuit integration. Using a lithographical pre-patterned sample and angle evaporation we can produce structures without the need for lift-off steps that deteriorate the materails. With the vertical architecture and the use of self assembled molecular layers as channel material, molecular dimension ultra-short channel could be achieved. We demonstrate the fabrication of two terminal devices and study their properties by SEM, OM, and electrical transport measurements. These results suggest a convenient method for studying the properties of molecular devices since they are compatible with different channel materials. We also point out the limitations of the current device design.

    摘要 I Abstract II 致謝 III Table of Contents IV List of Figures VI 1. Introduction 1 1-1 Background 1 1-2 Objectives 5 1-3 VFET 6 1-4 Self-Assembled Monolayers 9 1-5 Angle evaporation 11 1-6 Graphene 13 2. Methodology 14 2-1 Device fabrication 14 2-1-1 Substrate 15 2-1-2 Photoresist 15 2-1-3 Source and Drain Electrode 19 2-1-4 Self Assembled Monolayer 19 2-1-5 Graphene Transfer 21 2-1-6 Ozone plasma 22 2-2 Characterization 23 2-2-1 Current Voltage Measurement 23 2-2-2 Optical microscope 23 2-2-3 Scanning electron microscope 24 3. Result and Discussion 25 3-1 Large scale prototypes 25 3-2 Deltoidal-Hexagon Arrangement 27 3-3 Triangle Arrangement 29 3-4 Two Terminal Device 31 3-5 Defect analyze 33 3-6 Miniaturize Limitation 36 4. Conclusion 37 Future work 37

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