Surface Micron-Structure Engineering of Halide Perovskite Doped Glass-Ceramic and Its Ionic Transport Application

Halide perovskite crystals embedded in oxide glass matrix have inspired recent researches, owing to their applications in photoelectrical devices, but the dimension-tunable structures have rarely applied in electrochemical property enhancement. Herein, a novel glass-ceramic with mixed 0D/3D perovskite quantum dots (PQDs) as an anode material was fabricated by a traditional melt-and-quench method, and the growth patterns in the bulk or on the surface of the glass were systematically studied.Two types of microstrutures with dendrite and flake type of morphologies were devloped. The encapsulated micron-sized derivatives show outstanding ionic transport property as a potential anode material for Li-ion batteries (LiBs), manifesting long cyclic life, high specific capacity retention and increased rate performance. Additionally, the glass matrix serves as a media to accomodate lattice expansion of crystals, avoiding structure collapse and stabilizing ion transport channels. The verifiable lithiation mechanism and practical properties open the door for electrochemical applications of halide perovskite containing glass-ceramic materials.

Automated summary

A novel glass-ceramic containing mixed 0D/3D perovskite quantum dots has been successfully fabricated as a potential anode material for Li-ion batteries, showing outstanding electrochemical performance. The glass matrix accommodates lattice expansion of crystals, stabilizes ion transport channels, and opens the door for electrochemical applications of halide perovskite-containing materials.