Large-area synthesis of monolayer and few-layer MoSe2 films on SiO2 substrates

Published in Nano Letters, 2009

Recommended citation: Lu X, Utama MI, Lin J, Gong X, Zhang J, Zhao Y, Pantelides ST, Wang J, Dong Z, Liu Z, Zhou W. "Large-area synthesis of monolayer and few-layer MoSe2 films on SiO2 substrates." Nano Letters . 2014 May 14;14(5):2419-25. https://doi.org/10.1021/nl5000906 https://pubs.acs.org/doi/abs/10.1021/nl5000906

In this paper, we present successful synthesis of large area atomically thin MoSe2 films by selenization of MoO3 in a vapor transport chemical vapor deposition (CVD) system. The homogeneous thin film can reach an area of 1 × 1 cm2 consisting primarily of monolayer and bilayer MoSe2 film. Scanning transmission electron microscopy (STEM) images reveal the highly crystalline nature of the thin film and the atomic structure of grain boundaries in monolayers. Raman and photoluminescence spectroscopy confirm the high quality of as-grown MoSe2 in optics, and electronic transport measurements highlight the potential applications of the sample in nanoelectronics.

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Recommended citation: Lu X, Utama MI, Lin J, Gong X, Zhang J, Zhao Y, Pantelides ST, Wang J, Dong Z, Liu Z, Zhou W. “Large-area synthesis of monolayer and few-layer MoSe2 films on SiO2 substrates.” Nano Letters . 2014 May 14;14(5):2419-25. https://doi.org/10.1021/nl5000906