“石墨烯”这个名字也许你以前没听说过,不过铅笔你总用过吧?石墨是构成铅笔芯的重要材料,而石墨烯又是构成石墨的材料。当你在纸上轻轻一划,说不定这种材料就在你眼皮底下诞生了。事实上,当我们用铅笔在纸上轻轻划过时,划痕中就可能会出现单层的石墨——即石墨烯。但问题是,铅笔的划痕从微观角度讲实在是太大了,在那里搜寻石墨烯简直就象是在整个喜马拉雅山脉中搜寻一片薄冰, “Graphene ” The name Maybe you have not heard of before, but you always used the pencil, right? Graphite is an important material constituting the pencil lead, and graphene is the material constituting graphite. When you gently pad the paper, maybe this material is born under your noses. In fact, a single layer of graphite - the graphene - may appear in the scratch as we lightly stroke the paper with a pencil. The problem, however, is that pencil scratches are so microscopic that searching for graphene there is like searching for a slice of thin ice throughout the Himalayas,