Application of Ultrafast Lasers: A Promising Route toward the Fabrication of Advanced Perovskite‐Based Devices

Abstract Perovskite materials have received considerable research attention owing to their high carrier mobility, photoluminescence quantum yield, and light absorption coefficient. Their excellent optoelectronic properties and low material costs make them a strong competitive raw material for future electronic and high‐temperature superconducting materials. In particular, when applied to light‐emitting diodes (LEDs) and solar cells, their high conversion efficiency and relatively simple preparation process make them revolutionary materials that may change the pattern of perovskite‐based devices and overcome the limits of industrialization. However, with the development of technology, traditional preparation and treatment methods for perovskites no longer meet the increasing demands of the industry. Laser technology is widely used owing to its remarkable compatibility with perovskite materials. Therefore, this review summarizes the applications of laser technology to perovskite materials, including laser‐induced nucleation and film formation, laser annealing, laser ablation, laser printing, and laser patterning, discusses the achievements of researchers in using laser technology to regulate perovskites in recent years, and highlights the prospects of perovskite‐based laser technology.