Study of Re, Au, and Fe dopant effect on the structure and optical properties of molybdenum disulfide single crystals

Abstract

We report on extensive structural and optical studies of a variety of pure and Re-, Au-, Fe-doped molybdenum disulfide (MoS2) single crystals which grown by chemical vapor transport (CVT) method. In order to compare structural properties of crystals with different doping we conducted X-ray diffraction (XRD) and transmission electron microscopy (TEM) measurements. For optical characterization we used Raman spectroscopy, piezoreflectance (PzR), electrolyte electroreflectance (EER) and photoconductivity (PC).