Long Jin, Xuezhou Wang, Li Zeng, Ziyao Feng, Ni Zhao, Xiankai Sun
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引用次数: 0
Abstract
Metal halide perovskites are an excellent direct-bandgap semiconductor material that can possess high optical gain for laser and amplifier applications. Engineering light–matter interactions in perovskites by using a circular Bragg cavity holds great promise for high-performance on-chip photonic sources. Here, we report our development of an etchless fabrication method for perovskite active photonics with an experimental demonstration of circular Bragg lasers in quasi-2D Dion–Jacobson-phase perovskites. The demonstrated perovskite lasers exhibit excellent performance including a low lasing threshold of 8 μJ/cm2 and a record-high quality factor of ∼1.2 × 104. These laser devices have excellent stability due to the adoption of the Dion–Jacobson-phase perovskite and material-compatible fabrication processing. This work opens a new avenue to large-area, single-mode surface-emitting perovskite lasers and also provides a new platform for perovskite integrated photonics.
期刊介绍：
Published as soon as accepted and summarized in monthly issues, ACS Photonics will publish Research Articles, Letters, Perspectives, and Reviews, to encompass the full scope of published research in this field.
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