Perovskite Origami for Programmable Microtube Lasing

Metal halide perovskites are promising materials for optoelectronic and photonic applications ranging from photovoltaics to laser devices. However, current perovskite devices constrained simple low-dimensional structures suffering limited design freedom holding up performance improvement functionality upgrades. Here, a micro-origami technique is developed program 3D microarchitectures toward new type of microcavity laser. The flexibility in supports not only outstanding such as low threshold, tunable output, high stability but also yields functionalities like confined mode lasing directional emission in, example, “array-in-array” systems. results represent significant step forward programmable that take optoelectronics photonics into the era.