Journal
ACS NANO
Volume 13, Issue 11, Pages 13047-13055Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsnano.9b05722
Keywords
one-pot CVD synthesis; 2D heterostructure; core-shell structure; Mo1-xWxS2 alloy; growth parameters; supersaturation level
Categories
Funding
- European Research Council under the European Union's Seventh Framework Programme (FP/2007-2013)/ERC Grant [340538]
- Royal Society
- National Research Foundation of Korea (NRF) - Korean government (MSIT) [2019R1A2C1007883, 2019R1A2C1005930, 2019M1A2A2065616]
- National Research Foundation of Korea (NRF) - Ministry of Education [2016R1A6A1A03012877]
Ask authors/readers for more resources
Two-dimensional (2D) heterostructured or alloyed monolayers composed of transition metal dichalcogenides (TMDCs) have recently emerged as promising materials with great potential for atomically thin electronic applications. However, fabrication of such artificial TMDC heterostructures with a sharp interface and a large crystal size still remains a challenge because of the difficulty in controlling various growth parameters simultaneously during the growth process. Here, a facile synthetic protocol designed for the production of the lateral TMDC heterostructured and alloyed monolayers is presented. A chemical vapor deposition approach combined with solution-processed precursor deposition makes it possible to accurately control the sequential introduction time and the supersaturation levels of the vaporized precursors and thus reliably and exclusively produces selective and heterogeneous epitaxial growth of TMDC monolayer crystals. In addition, TMDC core/shell heterostructured (MoS2/alloy, alloy/WS2) or alloyed (Mo1-xWxS2) monolayers are also easily obtained with precisely controlled growth parameters, such as sulfur introduction timing and growth temperature. These results represent a significant step toward the development of various 2D materials with interesting properties.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available