Investigation of surface-enhanced Raman spectroscopy on the substrates of telluride 2D material

Since the discovery of graphene, there has been an upsurge in domestic and international research into two-dimensional materials, and the Raman enhancement effect of two-dimensional materials has also attracted much attention. In this experiment, copper phthalocyanine was used as a probe molecule to study the surface-enhanced Raman spectroscopy of WTe 2 and NiTe 2 . The study found that the enhancement effect of WTe 2 depends on the environment, and NiTe 2 shows the relationship between the enhancement effect and the thickness of the material. At the same time, research shows that Raman spectroscopy, as a nondestructive analysis technology, is of great significance for studying the Raman enhancement effect of probe molecules, two-dimensional materials, and optoelectronic materials and devices. Graphic abstract The SERS enhancement effect of two-dimensional materials WTe 2 and NiTe 2 was studied, and the time dependence of WTe 2 as a SERS substrate and the correlation between the thickness of NiTe 2 was explored separately.