本文件规定了使用拉曼光谱测量石墨烯相关二维材料的层数的方法。
本文件适用于利用机械剥离法制备的、横向尺寸不小于2 μm的石墨烯薄片的层数测量。化学气相沉积(CVD: chemical vapor deposition)法制备的以AB堆垛或ABC堆垛的石墨烯薄片可参照本方法执行。
注1: 测量石墨烯薄片的层数时,可单独或者综合几种方法联合测量并相互验证。
注2: 第5章给出了基于2D模的线型(A法)。第6章给出了基于SiO2/Si衬底的硅拉曼模峰高(B法)进行石墨烯薄片层数测量的拉曼光谱法。附录A给出了拉曼光谱法测量石墨烯薄片层数的各种方法概要一览表。附录B给出了基于石墨烯薄片G模的峰高(C法)进行石墨烯薄片层数测量的拉曼光谱法。
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This standard specifies the terms and definitions, instrument structure,technical requirements and test methods for laser confocal microscope Raman spectrometer.
This standard is applicable to single-stage, double-stage or triple-stage dispersive confocal microscope Raman spectrometer (hereinafter referred to as the instrument) using continuous-wave laser as the excitation light source.
This document is not applicable to non-dispersive Raman spectrometer such as Fourier transform Raman spectrometer and Raman spectrometer based on pulse laser source.
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This standard specifies terms and definitions, calibration conditions, Raman shift calibration and uncertainty evaluation of the Raman shift calibration curve.
This standard is applicable to the Raman shift calibration of the Raman spectrometer (hereinafter referred to as the equipment).
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