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arXiv · 1304.7365

Large-Area Aiming Synthesis of WSe2 Monolayers

Jing-Kai Huang·Jiang Pu·Chih-Piao Chuu·Chang-Lung Hsu·Ming-Hui Chiu·Zhen-Yu Juang·Yong-Huang Chang·Wen-Hao Chang·Yoshihiro Iwasa·Mei-Ying Chou·Taishi Takenobu·Lain-Jong Li
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Abstract

The monolayer transition metal dichalcogenides have recently attracted much attention owing to their potential in valleytronics, flexible and low-power electronics and optoelectronic devices. Recent reports have demonstrated the growth of large-size 2-dimensional MoS2 layers by the sulfurization of molybdenum oxides. However, the growth of transition metal selenide monolayer has still been a challenge. Here we report that the introduction of hydrogen in the reaction chamber helps to activate the selenization of WO3, where large-size WSe2 monolayer flakes or thin films can be successfully grown.

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Jing-Kai Huang, Jiang Pu, Chih-Piao Chuu, Chang-Lung Hsu, Ming-Hui Chiu, Zhen-Yu Juang, Yong-Huang Chang, Wen-Hao Chang, Yoshihiro Iwasa, Mei-Ying Chou, Taishi Takenobu, Lain-Jong Li. 2013-12-11. Large-Area Aiming Synthesis of WSe2 Monolayers. https://doi.org/10.1021/nn405719x

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