Large-area epitaxial growth of MoSe2 via an incandescent molybdenum source

Autor: Cheng, Man-Kit, Liang, Jing, Lai, Ying-Hoi, Pang, Liang-Xi, Liu, Yi, Shen, Junying, Hou, Jianqiang, He, Qing Lin, Xu, Bochao, Chen, Junshu, Wang, Gan, Liu, Chang, Lortz, Rolf, Sou, Iam-Keong
Rok vydání: 2015
Předmět:
DOI: 10.48550/arxiv.1509.02694
Popis: We have developed an incandescent Mo source to fabricate large-area single-crystalline MoSe2 thin films. The as-grown MoSe2 thin films were characterized using transmission electron microscopy, energy dispersive X-ray spectroscopy, atomic force microscopy, Raman spectroscopy, photoluminescence, reflection high energy electron diffraction (RHEED) and angular resolved photoemission spectroscopy (ARPES). A new Raman characteristic peak at 1591 cm-1 was identified. Results from Raman spectroscopy, photoluminescence, RHEED and ARPES studies consistently reveal that large-area single crystalline mono-layer of MoSe2 could be achieved by this technique. This technique enjoys several advantages over conventional approaches and could be extended to the growth of other two-dimensional layered materials containing a low-vapor-pressure element.
Databáze: OpenAIRE