Polymer encapsulation shields perovskite nanocrystals from degradation

Due to their fascinating optoelectronic properties, halide perovskites have attracted tremendous research interest as promising materials for photovoltaics, photodetectors, LEDs, and lasers. Researchers report report a strategy to synthesize perovskite nanocrystals using diblock copolymer micelles as a growth template. This work constitutes a new approach for synthesizing perovskite nanocrystals of controllable size and composition with vastly improved resistance to halide ion migration and environmentally induced degradation.