Crystalline phase induced Raman enhancement on molybdenum carbides

文献类型: 外文期刊

第一作者: Chen, Mengxin

作者: Chen, Mengxin;Sun, Yanchun;Chen, Mengxin;Liang, Ce;Zhang, Bin;Xu, Ping;Song, Chuqiao;Lin, Lili;Li, Siwei

作者机构:

期刊名称:INORGANIC CHEMISTRY FRONTIERS ( 影响因子:7.779; 五年影响因子:7.154 )

ISSN: 2052-1553

年卷期: 2022 年 9 卷 11 期

页码:

收录情况: SCI

摘要: Here we demonstrate crystalline phase induced Raman enhancement on molybdenum carbide materials (beta-Mo2C and alpha-MoC). From all the studied target molecules (rhodamine 6G, crystal violet and methylene blue), the Raman enhancement on beta-Mo2C is 2-4 times higher than that on alpha-MoC. Spectroscopic and theoretical calculations reveal that beta-Mo2C has a lower electron work function and a higher density of states near the Fermi level than alpha-MoC, which promotes the charge transfer and photo induced charge transfer processes from probe molecules to the substrate.

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