以CH4为气态碳源,不同组分的In基合金为衬底,用CVD法进行石墨烯生长的研究结果.用光学显微镜,拉曼光谱,场发射扫描电镜对生长的薄层进行了表征.结果显示在熔融态金属Cu-In合金上成功制备了石墨烯薄膜,“表面催化”型金属Cu的加入In使金属表面形核点增多,合金表面石墨烯的生长速度提高,但石墨烯质量下降;“溶解析出”型金属Ni与低熔点金属In组成的合金催化性能有明显的增强,在极短的时间内堆积成石墨“块”;金属Sn不具备明显的催化生长石墨烯的能力,导致了Sn-In合金衬底上石墨烯的生长与纯In类似,Sn的影响作用较弱.
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