Engineering the Surface Structure of MoS₂ Nanosheets by Carbon-Doping with Rich Defects to Tune UV-Visible Light Absorption Property

Abstract:

A facile doping method utilizing inexpensive raw materials was proposed to achieve variation in optical bandgap and UV-visible light absorption property of MoS₂ nanosheets. Carbon-assistant heating with degreasing cotton has demonstrated the development of carbon-doped MoS₂ nanosheets with enhanced rich defects. The results obtained shown that modified MoS₂ nanosheets with the lateral width of ~600 nm are exhibited shift of the intensively blue peaks of photo-luminescence (PL) comparing to those MoS₂ nanosheets with a lateral dimension of larger than 1 μm. Optical bandgap of the carbon-doped MoS₂ nanosheets was found to be broader than that of the pure MoS₂ nanosheets and the prepared samples also exhibited a broadband UV-visible light absorption property.

• Periodical: Key Engineering Materials (Volume 735)
• Pages: 185-188
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.735.185
• Online since: May 2017
• Authors: Zhen Yin Hai*, Jian Gong Du, Chen Yang Xue, Dan Feng Cui, Mohammad Karbalaei Akbari, Serge Zhuiykov
• Keywords: Bandgap, Carbon-Doped, Defect, MoS₂ Nanosheets

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