Ariane Marchese1,Yang Liu2,Thiago Seniuk3,Ariete Righi3,James Hone1,Marcos Pimenta3
Columbia University1,Peking University2,Universidade Federal de Minas Gerais3
Ariane Marchese1,Yang Liu2,Thiago Seniuk3,Ariete Righi3,James Hone1,Marcos Pimenta3
Columbia University1,Peking University2,Universidade Federal de Minas Gerais3
<b>Recent work has highlighted the potential for using tungsten diselenide (WSe<sub>2</sub>) to modify the properties of graphene, including spin-orbit coupling (Island et al., 2019), superconductivity (Su et al., 2022), and electron-phonon scattering (Banszerus et al., 2019). Here we study interaction between WSe<sub>2</sub> and graphene using Raman spectroscopy. We observe blue-shifting of the 2D mode of 1.6 cm<sup>-1</sup> for heterostructures of graphene and few-layer WSe<sub>2</sub>. The shift doubles with top and bottom WSe<sub>2</sub> coverage. The G mode for these measurements remains consistent at 1588 cm<sup>-1</sup>, indicating the shifts were not due to strain. Further investigations will study the renormalization of the Fermi velocity in these heterostructures.</b>