Synthesis and Properties of Perovskite/2D Material Heterostructures

Organic-inorganic hybrid perovskites are one of the most extensively studied materials for diverse optoelectronic applications such as, solar cells, photodetectors, and light emitting diodes. Thus, vertically stacked heterostructures of perovskites with various materials provides new routes to achieve better device performance, increase efficiency and, expand the application areas in the perspective of optoelectronic devices. However, most of the studies on perovskites have focused on solution based deposition techniques which gives bulk thin films that are difficult to be implemented into heterostructure by conventional lithography techniques because these perovskites are soluble in most of the common solvents. Here, we show solvent and lithography-free synthesis and optical properties of vertically aligned heterostructures of perovskite and WS_2.