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研究生:曾國隆
研究生(外文):Tzeng Kuo-Lung
論文名稱:有機共軛高分子之場效電晶體的研製及特性量測
論文名稱(外文):The Fabrication and Characterization of Field-Effect Transistor Based on Electroluminescent Conjugated Polymers on Glass
指導教授:孟心飛洪勝富
指導教授(外文):Hsin-Fei MengSheng-Fu Horng
學位類別:碩士
校院名稱:國立交通大學
系所名稱:物理研究所
學門:自然科學學門
學類:物理學類
論文種類:學術論文
論文出版年:2002
畢業學年度:90
語文別:英文
論文頁數:52
中文關鍵詞:共軛高分子場效電晶體
外文關鍵詞:conjugated polymerfield-effect transistor
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近幾年來,已有許多的實驗室及業界投入有機高分子半導體的研發,就製程上而言,它可以旋轉塗佈的方式來製作,且較廉價;本論文主要的目的是以有機共軛高分子(MEH-PPV)來製作場效電晶體並瞭解其特性。首先,我們以電子束微影系統來製作水平電極,也發現如此的元件其電流密度也比一般的三明治結構高出兩個等級;再進一步將前述的水平電極作為汲極及源極,我們製作出高分子電晶體。整體來說,要製作一個好的電晶體,閘極-絕緣層的要求是很關鍵的一部份,就這一點我們根據文獻以polyimide為絕緣層,其modulation為5倍。

Conjugated polymers like PPV derivatives are semiconductors. In addition, they have the advantages of solution processibility and are relatively cheap to manufacture. Therefore, conjugated polymers have been popular materials widely studied by researchers in recent years. The purpose of this thesis is to fabricate the organic field effect transistor with easy processing and understand the electrical characteristics of MOS FET based on MEH-PPV, [poly(2-methoxy-5-(2’-ethylhexyloxy)- 1,4-pheny -lene-vinylene)]. By using electron beam lithography system, we fabricated the horizontal electrode on glass successfully. High current density (due to high mobility) was observed in horizontal device structure. Using horizontal structure electrodes as the source and drain, we went on to make a transistor. In our experiment, gate-insulator is critical for the performance of FET. We have demonstrated a PFET with a polyimde layer as a gate-insulator. The modulation is around 5.

English Abstract
Acknowledgement
Chapter1.Introduction
1.1 Background ……………………………………………… 1
1.2 Motivation ……………………………………………….. 3
1.3 Outline …………………………………………………… 5
Chapter2. Material Properties and Device Concepts
2.1 Electronic Structure and Optical Properties of Conjugated Polymers …………………………………………………. 6
2.2 Design Concept: Idea of Parallel Electrode …………… 10
2.3 Characteristics of Metal-Oxide-Semiconductor Field Effect Transistor …………………………………………….... 11
2.4 Integrated Optoelectronic Semiconductor Devices Based on Conjugated Polymers ……………………………… 18
Chapter3. Experimental Setup and Device Processing
3.1 Experimental Procedure
3.1.1 Principle of Electron Beam Lithography ………… 20
3.1.2 Other Procedures to Complete A Transistor …….. 26
3.2 Results
3.2.1 Using Electron Beam Lithography System to Make Parallel Source-Drain Electrodes ……………….. 28
3.2.2 Transistor Fabrication …………………………….. 40
Chapter4. Electrical Characterization and Analysis of MOS FET
4.1 I-V Characteristics of Parallel Electrode ………………. 41
4.2 I-V Characteristics of Gate-Insulator ………………….. 44
4.3 I-V Characteristics of MOS FET ………………………. 46
Chapter5. Conclusion …………………………………………………. 52
Reference

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