Halide perovskite-based metasurfaces: structure design, performance regulation, and optoelectronic applications

Halide perovskite-based metasurfaces represent a rapidly advancing frontier in nanophotonics and optoelectronics. This platform synergistically combines two key advantages. On one hand, it employs the exceptional optoelectronic properties of perovskite materials, including high photoluminescence quantum yield, strong exciton binding energy, and high nonlinear susceptibility. On the other hand, it exploits the unprecedented wavefront manipulation abilities of metasurfaces. This review provides a comprehensive overview of recent progress in this dynamic field from two complementary perspectives. First, we discuss the integration of perovskites with traditional metasurfaces composed of metals and dielectrics. We highlight enhanced light-matter interactions, dynamic tunability, and novel functionalities such as strong coupling and polariton lasing. Second, we explore intrinsic perovskite metasurfaces, in which perovskites serve as the constitutive material of the metasurface. We detail their design principles based on Mie resonances and bound states in the continuum (BICs), advanced nanofabrication techniques such as nanoimprint lithography, and their inherent advantages for monolithic active devices. Finally, we survey representative optoelectronic applications. These include next-generation light-emitting devices (e.g., LEDs, lasers), high-performance photodetection and imaging systems, photovoltaic cells with enhanced light management, and other emerging applications in quantum optics and optical computing. The challenges and future prospects for this versatile platform are also outlined.