Light-matter interactions in semiconducting selenides and 2D perovskites

A.B. Kaul
University of North Texas,
United States

Keywords: 2D materials, strain, WSe2, perovskites


Transport and thermal properties of nanomaterials are often influenced by the properties of the underlying substrate upon which the nanomaterial resides. In order to access the intrinsic properties of nanomaterials, suspending them from the substrate provides one avenue to access their inherent properties. In this work, we discuss the excitonic and multibody interactions in semiconducting WSe2 crystallites, both in substrate-supported and suspended samples. At the same time, more chemically complex materials which also exhibit a van der Waals character to some extent, include the Ruddlesden-Popper 2D perovskites. I will also elaborate upon our additive manufacturing approaches with these organo-halide 2D perovskites, where their light-matter interactions are also equally intriguing towards photoabsorbers and solar cells.