Etchless Dion–Jacobson-Phase Perovskite Surface-Emitting Circular Bragg Lasers with an Ultrahigh Q Factor
Year: 2024
Type: article
Abstract: High Resolution Image Download MS PowerPoint Slide 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/cm 2 and a record-high quality factor of ∼1.2 × 10 4 . 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.
Source: ACS Photonics
Authors: Long Jin, Xuezhou Wang, Li Zeng, Ziyao Feng, Ni Zhao, Xiankai Sun
Institution: Chinese University of Hong Kong
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $4,500
OpenAlex ID: W4404687182