Department of Chemical Engineering, Faculty of Engineering, Monash University , Clayton 3800, Victoria, Australia.
ACS Nano. 2014 Nov 25;8(11):11086-93. doi: 10.1021/nn504615a. Epub 2014 Oct 2.
We introduce Plasmene- in analogy to graphene-as free-standing, one-particle-thick, superlattice sheets of nanoparticles ("meta-atoms") from the "plasmonic periodic table", which has implications in many important research disciplines. Here, we report on a general bottom-up self-assembly approach to fabricate giant plasmene nanosheets (i.e., plasmene with nanoscale thickness but with macroscopic lateral dimensions) as thin as ∼40 nm and as wide as ∼3 mm, corresponding to an aspect ratio of ∼75,000. In conjunction with top-down lithography, such robust giant nanosheets could be milled into one-dimensional nanoribbons and folded into three-dimensional origami. Both experimental and theoretical studies reveal that our giant plasmene nanosheets are analogues of graphene from the plasmonic nanoparticle family, simultaneously possessing unique structural features and plasmon propagation functionalities.
我们引入 Plasmene——类比于石墨烯——作为由“等离子体周期性表”中的纳米粒子（“元原子”）组成的自由-standing、单层超晶格薄片，这在许多重要的研究领域都有应用。在这里，我们报告了一种通用的自下而上的组装方法，用于制造厚度约为 40nm、宽度可达 3mm 的巨大 Plasmene 纳米片（即具有纳米级厚度但具有宏观横向尺寸的 Plasmene），纵横比高达 75000。结合自上而下的光刻技术，这种坚固的巨大纳米片可以被铣削成一维纳米带，并折叠成三维折纸。实验和理论研究都表明，我们的巨大 Plasmene 纳米片是等离子体纳米粒子家族中石墨烯的类似物，同时具有独特的结构特征和等离子体传播功能。
