Surface Vertical Multi-Emission Laser with Distributed Bragg Reflector Feedback from CsPbI₃ Quantum Dots.

ABSTRACT: Quantum dots (QDs) laser has become an important way to solve micro-application problems in many fields. However, single wavelength distributed Bragg reflector (DBR) has many limitations in practical applications, such as signal transmission. How to realize multiwavelength DBR lasing output simply is a challenge. To achieve a stable multi-wavelength quantum dots laser in the near-infrared region, the perovskite CsPbI₃ QDs laser with DBR structure is developed in this paper. A tetragonal crystal structure with complete bonding information and no defect is explained by X-ray diffractions (XRD) and Raman spectrum. The cross-section morphology of the DBR laser and the surface morphology of QDs is measured by scanning electron microscope (SEM) and transmission electron microscope (TE

SUBMITTER: Su X 

PROVIDER: S-EPMC10222913 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature