Raman imaging of graphene
Raman imaging of graphene
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DOI：
10.1016/j.ssc.2007.01.050
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发表时间：
2007-07-01
影响因子：
2.1
通讯作者：
Wirtz, L.
中科院分区：
文献类型：
--
作者：
Graf, D.;Molitor, F.;Wirtz, L.
固体的拉曼光谱包含有关其振动和电子特性的信息。收集具有空间分辨率的光谱数据并将其编码在二维图中，生成具有与光学和扫描力成像互补的信息的图像。在少层石墨烯的情况下，G 线的频率，特别是 D' 线的宽度对单层很敏感。几层石墨烯薄片的厚度反映在 G 线的强度和下面氧化硅主峰的强度降低上。 (c) 2007 Elsevier Ltd. 保留所有权利。
A Raman spectrum of a solid contains information about its vibrational and electronic properties. Collecting spectral data with spatial resolution and encoding it in a 2D plot generates images with information complementary to optical and scanning force imaging. In the case of few-layer graphene the frequency of the G line and especially the width of the D ' line turn out to be sensitive to single layers. The thickness of the few-layer graphene flake is reflected in the intensity of the G line and in the reduced intensity of the dominant peak of the underlying silicon oxide. (c) 2007 Elsevier Ltd. All rights reserved.