During my internship, I worked with the TELEM group in the laboratory Matériaux et phénomènes quantiques who masters the nanofabrication of 2d van der Waals hetero-structures. Previous works have already been done regarding this class of materials. For instance, a spin field effect transistor in WSe2 has been investigated and has reported very encouraging results. In this perspective, the efforts have been pursued towards the characterization of the basic spin transport properties into 2d van der Waals materials to the aim of contributing to the development of spin logic devices. In particular,my work has been focused on a developing a completely new spin injection method for our group, namely spin pumping.