Title

以奈米碳管經由濕式塗佈方式製備透明導電膜之分析

DOI

10.6843/NTHU.2010.00177

Authors

吳欣瑜

Key Words

奈米碳管 ; 透明導電膜 ; 濕式塗佈

PublicationName

清華大學化學工程學系學位論文

Volume or Term/Year and Month of Publication

2010年

Academic Degree Category

碩士

Advisor

劉大佼

Content Language

繁體中文

Chinese Abstract

本論文研究以濕式塗佈製作透明導電膜,主要材料為具有許多優異特性之材料—奈米碳管。奈米碳管不論是在機械、熱傳及電學特性上都有廣泛的研究及多功能的應用。在透明導電膜上的應用,可使用濕式塗佈製程,塗佈於可撓性基板且不需在高溫下操作,使生產成本降到最低。 研究共分為兩個部份,第一個部份是探討利用表面張力梯度形成的表面張力效應,建立出中間薄、周圍厚的類蜂巢結構,使透明導電膜達到高導電率及高穿透率的性質。實驗共使用三種溶劑系統,分別是去離子水、甲苯及酒精,觀察各系統在乾燥過程的現象並探討塗佈參數的影響,得到當溫差大、溼膜厚、黏度小、溶劑揮發性高者,容易產生類蜂巢結構,在本研究中,當溶劑系統為甲苯及酒精時,易產生毫米等級的類蜂巢結構。 第二個部份直接使用奈米碳管塗佈透明導電膜,調整各實驗參數以建立奈米碳管的塗佈視窗,並尋找適當的乾燥溫度、溼膜厚度等製程參數,測量各種透明導電膜之關鍵特性,如穿透率、電阻、均勻度及黏著性等等,待製程參數等條件確立後,比較不同塗佈方式對透明導電膜的影響,並結合塗佈產品的特性,進而找出最佳的塗佈方式及條件。最後將各製程之參數以無因次群—雷諾數表示,並找出雷諾數與透明導電膜之穿透率、電阻等特性之關係,得到當雷諾數越大,塗佈之透明導電膜的穿透率與電阻皆會下降的結果。

Topic Category 工學院 > 化學工程學系
工程學 > 化學工業
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