Recent Progress in Metal Halide Perovskite Micro‐ and Nanolasers

TLDR

Lead halide perovskites are promising photovoltaic materials with tunable bandgaps, high absorption, long carrier diffusion lengths, and low trap densities, and they also show potential as semiconductor gain media. This review surveys recent advances in lead halide perovskite micro‑ and nanolasers. It systematically examines how lasing performance depends on dimensionality, crystal size, and temperature, summarizes progress in continuous‑wave and lead‑free perovskite lasers, and outlines challenges and future prospects. These insights are intended to accelerate the development of perovskite on‑chip coherent light sources.

Abstract

Abstract Lead halide perovskites are considered as very promising photovoltaic materials due to their tunable direct bandgaps, large absorption coefficients, long carrier diffusion lengths, and ultralow trap state densities, etc. With these unique properties, the lead halide perovskites have also demonstrated great potential for use as semiconductor gain materials. In this review, a snapshot on the recent advances of lead halide perovskite micro‐ and nanolasers is given. The dependence of lasing performance on the perovskite dimensionality, crystal size, and operation temperature is systematically discussed. Furthermore, the development of continuous wave (cw) pumped perovskite lasers and lead‐free perovskite lasers is also summarized. In the final section, the challenges and future prospects of metal halide perovskite lasers are provided. These pieces of knowledge would help advancing the development of perovskite on‐chip coherent light sources.