Atomic layer deposition of a MoS₂ film

Autor: Lee Kheng, Tan, Bo, Liu, Jing Hua, Teng, Shifeng, Guo, Hong Yee, Low, Hui Ru, Tan, Christy Yuen Tung, Chong, Ren Bin, Yang, Kian Ping, Loh
Rok vydání: 2014
Zdroj: Nanoscale. 6(18)
ISSN: 2040-3372
Popis: A mono- to multilayer thick MoS₂ film has been grown by using the atomic layer deposition (ALD) technique at 300 °C on a sapphire wafer. ALD provides precise control of the MoS₂ film thickness due to pulsed introduction of the reactants and self-limiting reactions of MoCl₅ and H₂S. A post-deposition annealing of the ALD-deposited monolayer film improves the crystallinity of the film, which is evident from the presence of triangle-shaped crystals that exhibit strong photoluminescence in the visible range.
Databáze: OpenAIRE