Naslov
Cluster Superlattice Membranes

Autori
Hartl, Tobias ; Will, Moritz ; Čapeta, Davor ; Singh, Rajendra ; Scheinecker, Daniel ; Boix de la Cruz, Virginia ; Dellmann, Sophia ; Lacovig, Paolo ; Lizzit, Silvano ; Senkovskiy, Boris V. ; Grüneis, Alexander ; Kralj, Marko ; Knudsen, Jan ; Kotakoski, Jani ; Michely, Thomas ; Bampoulis, Pantelis

Izvornik
ACS Nano (1936-0851) 14 (2020), 10; 13629-13637

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
nanocluster superlattices ; membranes ; two-dimensional materials ; graphene ; moiré

Sažetak
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.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

POVEZANOST RADA