The Importance of Interbands on the Interpretation of the Raman Spectrum of Graphene Oxide
The Importance of Interbands on the Interpretation of the Raman Spectrum of Graphene Oxide
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DOI：
10.1021/acs.jpcc.5b01590
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发表时间：
2015-05-07
影响因子：
3.7
通讯作者：
Cirera, Albert
中科院分区：
文献类型：
--
作者：
Claramunt, Sergi;Varea, Aida;Cirera, Albert
分析了氧化石墨烯和热还原氧化石墨烯的拉曼光谱，以将光谱参数与结构性质相关联。通过有机元素分析确定了不同氧化石墨烯的化学组成，并通过X射线衍射分析了纳米晶的微观结构。在1000 ~ 1800 cm ~（-1）范围内，我们发现了5个已报道的谱带（D，D '，G，D“和D*）。谱带参数如位置、强度比和宽度与GO和rGO片晶的结构性质如氧含量、结晶度和无序度有关。进行Tuinstra-Koenig和Cuesta模型的有效性的评估，但是通过使用从氧化石墨烯衍生物的一级光谱在五个函数（两个高斯峰和三个伪Voigt峰）处的拟合获得的结果。
Raman spectra of graphene oxide and thermally reduced graphene oxide were analyzed in order to relate spectral parameters with the Structural properties. The chemical composition of different graphene oxides was determined by organic elemental analysis, and the microstructure of nanocrystals was analyzed by X-ray diffraction. We find five reported bands (D, D', G, D '', and D*) in the region between 1000 and 1800 cm(-1) in all spectra. The band parameters such as position, intensity ratio, and width have been related with structural properties such as oxygen content, crystallinity, and disorder degree of GO and rGO platelets. An assessment of the Validity of the Tuinstra-Koenig and Cuesta models was carried but by using the results obtained from the fit of the first-order spectra of graphene oxide derivatives at five functions: two Gaussian and three pseudo-Voigt peaks.