Recent advances in femtosecond laser micro/nano processing of perovskites for optical applications

In recent years, with the rapid development of new energy and optoelectronic technologies, perovskite materials have become a research hotspot of common interest in both academic and industrial communities due to their excellent optoelectronic properties, low-cost fabrication processes, and diverse application scenarios. However, achieving efficient and high-precision processing of perovskite materials remains a key challenge hindering their broader application. In this context, femtosecond laser processing technology, leveraging its ultra-short pulse duration and high-precision machining capabilities, has opened up new possibilities for research into and application of perovskite materials. This review summarizes the mechanisms and recent advances in femtosecond laser micro/nano-processing of perovskite single crystals, glasses, and polymer thin films, systematically outlines relevant methods and their unique advantages, provides an in-depth discussion on the application potential of femtosecond laser direct writing in the field of perovskite luminescence, and offers prospects for future optimization and improvement of femtosecond laser-based preparation and processing techniques. The findings presented are expected to provide important theoretical support and technical reference for further research and practical applications of perovskite materials.