Effects of substrates on proton irradiation damage of graphene.
Effects of substrates on proton irradiation damage of graphene.
复制标题
基材对石墨烯质子辐照损伤的影响
作者：
本文研究了高强度D-T聚变中子发生器（HINEG）质子辐照后Cu和Ni衬底上的石墨片和单层石墨烯的辐照损伤。利用拉曼光谱、X射线光电子能谱（XPS）和透射电子显微镜（TEM）分析了不同基底上石墨片和单层石墨烯的微观结构演变。结果表明，辐照后石墨烯中碳氧化物（C-O，CO）的峰面积比降低。2-50在Cu和Ni基底上的单层石墨烯中产生nm纳米孔。拉曼光谱结果表明，不同衬底上石墨烯的D、G峰强度比（ID/IG）的关系为ID/IG（Cu）< ID/IG（Ni）< ID/IG（石墨），表明Cu衬底上石墨烯的质子辐照损伤最轻。其原因可能是不同的基底具有不同的损伤自修复能力。质子辐照后，不同衬底上的石墨烯产生不同的损伤，这是由于不同衬底上的石墨烯损伤自修复能力不同所致。
In this paper, the irradiation damage of graphite sheets and monolayer graphene on Cu and Ni substrates after the proton irradiation with High Intensity D–T Fusion Neutron Generator (HINEG) were studied. The microstructure evolution of graphite sheets and monolayer graphene on different substrates was analyzed using Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), and transmission electron microscopy (TEM). Results showed that the peak area ratio of carbon-oxides (C–O, CO) in graphene was reduced after irradiation. 2–50 nm nanopores were produced in monolayer graphene on both Cu and Ni substrates. The results of Raman spectroscopy showed that the relationship between D and G peak intensity ratios (ID/IG) of irradiated graphene on diverse substrates was ID/IG(Cu) < ID/IG(Ni) < ID/IG(graphite), which indicated that the proton irradiation damage of graphene on the Cu substrate was the lightest. The reason for this could be speculated to be that different substrates had different damage self-repairing capabilities. Graphene on different substrates produced different damages after proton irradiation because of the different damage self-repairing of graphene on different substrates.
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