| 研究生: |
蔡仁傑 Tsai, Zen-Jay |
|---|---|
| 論文名稱: |
N型有機薄膜電晶體之研究 The study of n-type organic thin film transistor |
| 指導教授: |
郭宗枋
Guo, Tzung-Fang |
| 學位類別: |
碩士 Master |
| 系所名稱: |
理學院 - 光電科學與工程研究所 Institute of Electro-Optical Science and Engineering |
| 論文出版年: | 2006 |
| 畢業學年度: | 94 |
| 語文別: | 中文 |
| 論文頁數: | 89 |
| 中文關鍵詞: | 有機薄膜電晶體 、N型 |
| 外文關鍵詞: | organic thin film transistor, N-type, pentacene |
| 相關次數: | 點閱:59 下載:1 |
| 分享至: |
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中文摘要
目前在有機薄膜電晶體裡,大多是電洞為主的元件(P-type),而在N-type方面進步速度卻相當有限。為了將來能使CMOS-Like的元件(邏輯電路應用),或是利用有機薄膜電晶體所設計的驅動電路能夠實現於各種軟性電子產品,N-tpye電晶體是必備的,本論文主要即是探討如何獲得好的N-type電性,包括元件介電層(dielectrics)的選擇、電極功函數與主動層LUMO、HOMO的匹配、以及週遭環境的影響等因素。在本論文最後也利用了假想的可能理論模型探討了N、P-type與雙載子元件的機制,發現介電層的選擇將會影響到有機薄膜電晶體的型態,因為它與主動層的接面將是最重要的關鍵,最後我們也搭配無機奈米顆粒材料增加其介電常數成功的改善了元件的臨界電壓,期待在不久的將來能夠看到有機薄膜電晶體能有更重大的發展與突破。
Abstract
An electron accumulation-mode operation in organic field-effect transistor (OFET) using a thin film of pentacene and Al source-drain electrode was demonstrated. Most of the reported transistors use organic semiconductors capable of transporting holes(p-type). The organic dielectrics play a important role to realize electrons transport. Appearance of the electron accumulation-mode in OFET was ascribed to the lowering of barrier for electron injection at a source electrode and introduced a complex dielectric.
The present study indicates that the morphology of the semiconductor interface at the organic semiconductor/organic dielectric is a critical parameter for OFET properties such as electrons transport.
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