材料科学
鉴定(生物学)
图层(电子)
纳米技术
光电子学
生物
植物
作者
Hai Li,Gang Lü,Zongyou Yin,Qiyuan He,Hong Li,Qing Zhang,Hua Zhang
出处
期刊:Small
[Wiley]
日期:2012-01-05
卷期号:8 (5): 682-686
被引量:300
标识
DOI:10.1002/smll.201101958
摘要
A simple approach is developed to identify the layer number of 2D MoS2 sheets. By using an optical imaging method combined with image analysis software, a high-contrast image of the MoS2 sheets can be extracted from the red (R) channel of the color optical microscopy image. The value of the intensity difference in the grayscale image of the R channel between MoS2 sheets (1–3 layers) and the SiO2 substrate can be used to identify the layer number of the sheet.
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