Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/134692
Title: DISCOVERING PECULIAR NANOSTRUCTURES IN TWO-DIMENSIONAL MATERIALS BY SCANNING TUNNELING MICROSCOPY
Authors: BAO YANG
Keywords: surface science, two-dimensional materials, scanning tunneling microscopy, catalysis, graphene
Issue Date: 4-Aug-2016
Source: BAO YANG (2016-08-04). DISCOVERING PECULIAR NANOSTRUCTURES IN TWO-DIMENSIONAL MATERIALS BY SCANNING TUNNELING MICROSCOPY. ScholarBank@NUS Repository.
Abstract: The remarkable properties of graphene and molybdenum disulfide (MoS2) have made them attractive materials for next-generation optoelectronic devices. In both natural and synthetic two-dimensional (2D) materials, structural imperfections will inevitably exist, which affect strongly their physical and chemical properties. Understanding these structural imperfections is crucial for the accurate estimation of the properties of 2D materials. Moreover, if these structural imperfections are introduced in a controlled manner, it may alter the properties of the host material in potentially useful ways. In this thesis, several peculiar structural imperfections in 2D materials are studied, which include periodic grain boundaries in graphene, substoichiometric MoS2 with a high density of coordinatively unsaturated surface sites and one-dimensional (1D) MoS2 ribbons with zigzag edge terminations. The findings and efforts in this thesis have advanced the understanding of structural imperfections in 2D materials and demonstrated that these peculiar nanostructures can introduce new properties and functionalities to 2D materials, leading to numerous useful applications beyond their pristine, structurally perfect counterparts.
URI: http://scholarbank.nus.edu.sg/handle/10635/134692
Appears in Collections:Ph.D Theses (Open)

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