Robust B-exciton emission at room temperature in few-layers of MoS:Ag nanoheterojunctions embedded into a glass matrix.

Tailoring the photoluminescence (PL) properties in two-dimensional (2D) molybdenum disulfide (MoS) crystals using external factors is critical for its use in valleytronic, nanophotonic and optoelectronic applications. Although significant effort has been devoted towards enhancing or manipulating the excitonic emission in MoS monolayers, the excitonic emission in few-layers MoS has been largely unexplored. Here, we put forward a novel nano-heterojunction system, prepared with a non-lithographic process, to enhance and control such emission.

Highly luminescent and ultrastable cesium lead bromide perovskite patterns generated in phosphate glass matrices.

Owing to their exceptional optoelectronic properties, all-inorganic lead halide perovskites offer enormous potential for next generation photonic, light-emitting, and optoelectronic devices. However, their usage is significantly limited by their poor stability upon moisture exposure and lead toxicity issues. Moreover, many of the aforementioned applications rely on the development of confined perovskite patterns of various shapes and periodicities.