多層式雙極有機場效電晶體之研究

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姓名

黃聖淼(Sheng-miao Huang) 查詢紙本館藏

畢業系所

光電科學與工程學系

論文名稱

多層式雙極有機場效電晶體之研究
(Studies of Multilayer Ambipolar Organic Field Effect Transistors)

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摘要(中)

近年來，許多團隊發表不少有機電晶體的研究。從典型的P-type材料到N-type材料的開發，期望能加速有機邏輯電路的商業應用。而隨著雙極性材料和元件結構被廣泛地開發，有機發光電晶體的研究更是吸引不少團隊躍躍欲試。
本論文重點在於吾人嘗試利用具有高載子遷移率之P-type有機材料DNTT與一N-type有機材料DFH-4T進行堆疊結構的電晶體元件研究。在堆疊之前，吾人對單層的P-type和N-type有機材料進行電性量測與優化。接著，藉由將DNTT材料沉積於DFH-4T材料上，大大的提升了兩材料的電性表現，成功製作出具有載子高遷移率雙極性電晶體。此外，進一步將發光層BSB-Cz置入於P-type與N-type材料之間，形成p-channel/emitter/n-channel結構，也成功地看到平衡的雙載子傳輸特性以及電晶體的發光行為。

摘要(英)

In recent years, there have been numerous studies on organic transistors. More varieties of P- and N-type materials have been developed to speed up the commercial application of organic logic circuits. The development of ambipolar materials and device structures also facilitate the research of organic light-emitting transistors.
This thesis focuses on the electrical characteristics of multilayer organic field effect transistors. The organic p-type material DNTT and n-type material DFH-4T are employed to fabricate the active components. First, I characterize the electrical properties of single-layer DNTT and DFH-4T transistors independently. Then, as depositing DNTT on top of DFH-4T, I show that such bilayer transistors exhibit greatly enhanced hole and electron mobilities as compared with their respective single-layer transistors. The high electron and hole mobilities ambipolar transistor can be achieved. In addition, I place a light-emitting material BSB-Cz within the P-type and N-type material to form p-channel/emitter/n-channel trilayer structure, In this architecture, balanced ambipolar transport properties and electrical luminescence are successfully demonstrated.

關鍵字(中)

★ 有機場效電晶體
★ 介電層
★ 金屬電極功函數
★ 雙載子傳輸特性
★ 發光電晶體

關鍵字(英)

論文目次

摘要………………………………………I
Abstract………………………………………II
誌謝………………………………………III
目錄………………………………………IV
圖目錄………………………………………VII
表目錄………………………………………XII
一、緒論………………………………………1
1.1 前言………………………………………1
1.2 研究動機………………………………………3
1.3 論文架構………………………………………4
二、理論………………………………………6
2.1 介電質………………………………………6
2.2電晶體理論………………………………………7
2.3電流與電壓關係………………………………………9
2.4載子注入的電極………………………………………11
三、樣品製作與實驗裝置………………………………………13
3.1 材料介紹………………………………………13
3.1.1 介電材料………………………………………13
3.1.2 有機材料………………………………………13
3.2 樣品製備………………………………………16
3.2.1 基板清洗………………………………………16
3.2.2 下電極的製作………………………………………16
3.2.3 介電層溶液製備………………………………………17
3.2.4 有機材料的蒸鍍………………………………………18
3.2.5 電晶體上電極的製作………………………………………20
3.2.6 實驗元件結構………………………………………20
3.3 實驗裝置與量測………………………………………21
四、實驗結果與討論………………………………………22
4.1 有機半導體的電性量測………………………………………22
4.1.1 N型有機半導體的性量測………………………………………23
4.1.2 P型有機半導體的性量測………………………………………31
4.2 雙載子場效電晶體………………………………………34
4.2.1 介電質/DFH-4T/DNTT場效電晶體電性量測………………………………………36
4.2.2 介電質/DNTT/DFH-4T場效電晶體電性量測………………………………………45
4.2.3 雙層場效電晶體電性量測之總結………………………………………47
4.3 三層有機發光場效晶體………………………………………48
4.3.1介電質DFH-4T/BSB-Cz/DNTT場效電晶體電性量測………………………………………49
4.3.2介電質DNTT/BSB-Cz/DFH-4T場效電晶體電性量測………………………………………54
4.3.3三層場效電晶體量測總結………………………………………69
五、結論與未來展望………………………………………70
參考文獻………………………………………72

參考文獻

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指導教授

張瑞芬、李正中

審核日期

2013-8-16

推文