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(1) Presentation(s)


Mar. 23/01/2018 10:00 Salle RdC, Bâtiment 11, RdC

JHANG Sung-ho (Konkuk University)
Research towards new architecture based on 2D layered materials

(Nanostructures & Spectroscopie)


In this talk, we introduce our research activity towards new architecture based on 2D materials such
as graphene and MoS2. First, we show that graphene or monolayer MoS2 can be rolled up into
nanoscroll structure, distinct from nanotube or 2D atomic layers. Properties of rolled-up graphene
and MoS2 were investigated. Secondly, we present the effect of laser irradiation on 2D monolayers.
We observed the swelling-up of the monolayer from the SiO2 substrate upon laser illumination. The
mismatch in the thermal expansion between the substrate and 2D layers can result in the structural
deformation. Employing this method, one can induce structural deformation in a desired pattern.
We demonstrate the patterning of periodic ripples in monolayers by using laser irradiation. The new
architecture and the strain engineering might provide a useful tool with enhancing the performance
of electronic and optoelectronic devices based on 2D materials.

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