Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2015 Oct 9;6:8569. doi: 10.1038/ncomms9569

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

Copyright © 2015, Nature Publishing Group, a division of Macmillan Publishers Limited. All Rights Reserved.

This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

PMC Copyright notice

(a) Optical image of a 400-μm monolayer WS₂ domain transferred on a TEM grid. (b) Typical SAED pattern of the sample in a showing a hexagonal crystal structure. The asymmetry of the W and S sublattices separates the diffraction spots into two families: and k_b=−k_a. (c) Superimposed image of 12 coloured SAED patterns taken from the areas labelled with numbers 1–12 in a. The same colours were used to indicate the SAED patterns and the corresponding areas in a, where they were collected. (d–f) HRTEM (d) aberration-corrected HRTEM, (e) aberration-corrected ADF-STEM (f) images of the monolayer WS₂ domains, showing no point defects, voids and sulphur vacancies.

Inline graphic — (a) Optical image of a 400-μm monolayer WS₂ domain transferred on a TEM grid. (b) Typical SAED pattern of the sample in a showing a hexagonal crystal structure. The asymmetry of the W and S sublattices separates the diffraction spots into two families: and k_b=−k_a. (c) Superimposed image of 12 coloured SAED patterns taken from the areas labelled with numbers 1–12 in a. The same colours were used to indicate the SAED patterns and the corresponding areas in a, where they were collected. (d–f) HRTEM (d) aberration-corrected HRTEM, (e) aberration-corrected ADF-STEM (f) images of the monolayer WS₂ domains, showing no point defects, voids and sulphur vacancies.