氧化石墨烯/聚乙二醇高溫還原石墨烯薄膜特性之研究

Properties of graphene thin films derived from high temperature reduced graphene oxide/polyethylene glycol.

李浚源(Chun-Yuan Lee)

指導教授 ： 王宏文

中原大學/理學院/化學研究所/碩士(2012年)

https://doi.org/10.6840/cycu201200048

摘要

石墨烯由於具有快速的電子遷移率、高機械強度，因此在電子元件以及透明導電薄膜方面，受到重視。
在本研究中，採用氧化石墨烯還原法，我們利用Hummer法備製氧化石墨烯 (Graphene Oxide，簡稱GO)與市售的聚乙二醇 (Polyethlyene Glycol，簡稱PEG)分子量600、6000、20000、35000進行漿料調配。
在玻璃基板上進行漿料塗膜，使用高溫爐600℃，3小時進行鍛燒還原，使氧化石墨烯還原成具導電性的石墨烯 (Graphene)。
研究討論氧化石墨烯混掺高分子PEG進行高溫還原石墨烯時，分子量對於物理性質的影響。發現加入分子量600及6000的PEG所製成的石墨烯薄膜具有良好的導電性與還原結構。

關鍵字

石墨烯 ； 聚乙二醇 ； 氧化石墨 ； 導電率

並列摘要

Graphene with fast electron mobility, high mechanical strength, high conductivity and transparent characteristics, therefore, becomes very wide applications in electronic components.
In this study, graphene was reduced from graphene oxide (GO) by using Hummer’s methods. By adding commercially available polyethylene glycol (PEG) with molecular weight 600, 6000, 20000, and 35000 for slurry formation, we developed the graphene films on glass substrate with good conductivity for electrode applications. The characteristics of graphene/PEG films were studied by using SEM, UV-vis, four proble point conductivity measurement, Raman spectroscopy, and AFM.
It was found that PEG with molecular weight around 600~6000 is a better choice for the formation of graphene film on glass substrate in term of conductivity and their trasparancy.

並列關鍵字

Graphene Oxide ； Grapheme ； Conductivity ； Polyethlyene Glycol

參考文獻

[ ] Geim A. K., Novoselov K. S. ,; The rise of grapheme;, Nature Mater. 6(2007), P.183.

V., Grigorieva I. V. and Firsov A. A.,; Electric field effect in atomically thin carbon films;, Science 306 (2004), 5696, P.666

  Wallace P. R.,; The band theory of graphite;, Phys.Rev. 71(1947), P.622.

[ ]Lee C., Wei X., Kysar J. W., Hone J., ;Measurement of the elastic properties and intrinsic strength of monolayer grapheme;, Science 321(2008), 5887, P.385.

(Scientific Background on the Nobel Prize in Physics 2010: