超晶格
材料科学
石墨烯
纳米团簇
纳米技术
星团(航天器)
膜
磁性
光电子学
凝聚态物理
化学
物理
计算机科学
生物化学
程序设计语言
作者
Tobias Hartl,Moritz Will,Davor Čapeta,Rajendra Singh,Daniel Scheinecker,Virginia Boix de la Cruz,S. Dellmann,Paolo Lacovig,Silvano Lizzit,Boris V. Senkovskiy,A. Grüneis,Marko Kralj,Jan Knudsen,Jani Kotakoski,Thomas Michely,Pantelis Bampoulis
出处
期刊:ACS Nano
[American Chemical Society]
日期:2020-09-10
卷期号:14 (10): 13629-13637
被引量:6
标识
DOI:10.1021/acsnano.0c05740
摘要
Cluster superlattice membranes consist of a two-dimensional hexagonal lattice of similar-sized nanoclusters sandwiched between single-crystal graphene and an amorphous carbon matrix. The fabrication process involves three main steps, the templated self-organization of a metal cluster superlattice on epitaxial graphene on Ir(111), conformal embedding in an amorphous carbon matrix, and subsequent lift-off from the Ir(111) substrate. The mechanical stability provided by the carbon-graphene matrix makes the membrane stable as a free-standing material and enables transfer to other substrates. The fabrication procedure can be applied to a wide variety of cluster materials and cluster sizes from the single-atom limit to clusters of a few hundred atoms, as well as other two-dimensional layer/host matrix combinations. The versatility of the membrane composition, its mechanical stability, and the simplicity of the transfer procedure make cluster superlattice membranes a promising material in catalysis, magnetism, energy conversion, and optoelectronics.
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