论文标题
使用共焦拉曼光谱法研究石墨烯在SRTIO3单晶上
Investigations of Graphene on SrTiO3 Single-Crystal using Confocal Raman Spectroscopy
论文作者
论文摘要
使用依赖温度的共聚焦拉曼光谱研究，研究了放置在SRTIO3单晶底物上的石墨烯层。这种方法成功地解决了由于SRTIO3的强烈拉曼散射背景，因此在常规测量中通常无法追踪的石墨烯模式。有关通过不同技术合成的一些石墨烯/SRTIO3样品获得了有关缺陷和应变态的信息。这种共聚焦拉曼光谱方法不仅可以揭示对该石墨烯/SRTIO3系统的研究，而且还可以阐明各种二维分层材料，其拉曼模式会干扰其底物。
Graphene layers placed on SrTiO3 single-crystal substrates were investigated using temperature-dependent confocal Raman spectroscopy. This approach successfully resolved distinct Raman modes of graphene that are often untraceable in conventional measurements due to the strong Raman scattering background of SrTiO3. Information on defects and strain states was obtained for a few graphene/SrTiO3 samples that were synthesized by different techniques. This confocal Raman spectroscopic approach can shed light on the investigation of not only this graphene/SrTiO3 system but also various two-dimensional layered materials whose Raman modes interfere with their substrates.
