Perovskitesolu

Perovskitesolu is a term used to describe perovskite materials processed from solution into solid films for optoelectronic devices. Solution processing deposits a liquid precursor onto a substrate and converts it to a crystalline perovskite by solvent evaporation and annealing. The solid typically has the ABX3 structure, where A is a monovalent cation such as formamidinium (FA+), methylammonium (MA+), or cesium (Cs+); B is lead (Pb2+) or tin (Sn2+); and X is a halide (I− or Br−). Mixed-cation and mixed-halide compositions are common to optimize stability and bandgap.

These materials offer strong light absorption, high carrier mobility, and tunable bandgaps, enabling solar cells, light-emitting diodes, lasers, and photodetectors. Film formation depends on controlling crystallization and uniformity; common methods include spin coating, blade, slot-die, and various printing techniques, often with additives or anti-solvents to improve film quality.

Stability and safety are major concerns: moisture sensitivity, thermal instability, and lead toxicity pose challenges. Research aims to improve durability through compositional engineering, encapsulation, and device design, as well as to develop lead-free variants based on tin or alternative metals. Environmental and regulatory considerations also guide development and deployment.

Perovskitesolu sits within the broader move toward low-cost, scalable fabrication of high-performance perovskite-based devices.