文摘
We introduce Plasmene鈥?in analogy to graphene鈥攁s free-standing, one-particle-thick, superlattice sheets of nanoparticles (鈥渕eta-atoms鈥? from the 鈥減lasmonic periodic table鈥? 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 鈭?0 nm and as wide as 鈭? mm, corresponding to an aspect ratio of 鈭?5鈥?00. In conjunction with top鈥揹own 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.
Keywords:
self-assembly; giant; plasmene; nanosheet; nanoribbon; origami; graphene
