利用射频溅射法在Si衬底上制备了SiCN薄膜,并利用X射线衍射(XRD)、红外吸收谱(FTIR)和X射线光电子谱(XPS)对薄膜的结构、成份及化学键合状态进行了分析.结果表明,室温制备的SiCN薄膜为非晶状态,并形成了Si-C、Si-N和C-N键;而在高温下(衬底温度为800oC),薄膜中含有SiCN的晶体成分.此外,还利用原子力显微镜(AFM)对薄膜的表面形貌进行了研究,并进一步研究了样品的场发射性能.在场强为24V/μm时,最大发射电流可达3.3mA/cm2.
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