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Plasmonic MoO3-x@MoO3 nanosheets for highly sensitive SERS detection through nanoshell-isolated electromagnetic
Xianjun Tan1, Lingzhi Wang1, Chen Cheng1
1Key Laboratory for Advanced Materials and Institute of Fine chemicals, East China University of Science and Technology, Shanghai 200237, P. R. China. wlz@ecust.edu.cn jlzhang@ecust.edu.cn.
Abstract:
Plasmonic MoO3-x@MoO3 nanosheets obtained from surface oxidation of MoO3-x were employed as a SERS substrate for methylene blue detection. They exhibit extraordinary sensitivity comparable to noble metals, which is attributed to shell-isolated electromagnetic enhancing by the plasmonic MoO3-x core and elimination of the photocatalytic degradation by the MoO3 shell.
