Issue 32, 2020

Controllable growth of two-dimensional SnSe2 flakes with screw dislocations and fractal structures

Abstract

Two-dimensional (2D) structured layered chalcogenide materials play a pivotal role in a wide range of applications owing to their exotic physical properties and flexible architectures. Here, we report on the controllable synthesis of 2D SnSe2 flakes with screw dislocations and fractal structures on mica and graphite substrates using a molecular beam epitaxy technique. Atomic force microscopy, Raman spectroscopy and X-ray photoelectron spectroscopy were used to characterize the composition and crystal structures of the 2D SnSe2 flakes. We show that 2D SnSe2 flakes with tunable density of screw dislocations and fractal structures can be prepared by adjusting the growth parameters. This work offers new opportunities for engineering 2D materials with unique architectures to develop novel electronic devices and catalysts.

Graphical abstract: Controllable growth of two-dimensional SnSe2 flakes with screw dislocations and fractal structures

Supplementary files

Article information

Article type
Paper
Submitted
06 Jun 2020
Accepted
27 Jul 2020
First published
28 Jul 2020

CrystEngComm, 2020,22, 5296-5301

Controllable growth of two-dimensional SnSe2 flakes with screw dislocations and fractal structures

C. Wang, H. Yang, Q. Wang, L. Qiao, X. Peng, J. Li, J. Han, Q. Wang, X. Li, Z. Wang, J. Duan and W. Xiao, CrystEngComm, 2020, 22, 5296 DOI: 10.1039/D0CE00819B

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