材料科学与工程学报2013，Vol.31Issue(4)：489-494,6.
Cu箔衬底上石墨烯纳米结构制备
Growth of Graphene Nanostructures on Cu Foils
摘要
Abstract
Single layer graphene nanostructures have been prepared on Cu foils by low pressure chemical vapor deposition (LPCVD),and were then characterized by scanning electron microscope (SEM),atomic force microscope (AFM) and Raman microscopy.CVD-grown graphene exhibits various morphologies and shapes by tuning growth conditions.We studied the effect of the CH4 ∶ H2ratio,the total growth pressure and the orientation of Cu substrate on graphene shapes for the samples with the growth temperature of 1000 ℃ and the growth time of 2 min.It is revealed that the balance between carbon diffusion/deposition and hydrogen etching affects the graphene shapes greatly,in which graphene preferred to form hexagons when hydrogen etching predominated over C diffusion/deposition,while tended to form flowers with conditions in reverse.Additionally,no distinct relationship is found between the graphene shape and the underneath grain orientation of Cu.关键词
石墨烯/CVD/石墨烯形貌Key words
graphene/ CVD/ graphene shape分类
化学化工引用本文复制引用
葛雯,吕斌..Cu箔衬底上石墨烯纳米结构制备[J].材料科学与工程学报,2013,31(4):489-494,6.基金项目
国家自然科学基金资助项目(51002134),浙江省钱江人才计划资助项目(2011R10044) （51002134）
