A high-precision, template-assisted, anisotropic wet etching method for fabricating perovskite microstructure arrays.

ABSTRACT: Cesium lead-halide (CsPbX₃; X = Cl, Br, I) perovskite microstructure arrays have become the basis for laser array applications, due to their outstanding spectral coherence, low threshold, and wideband tunability. Furthermore, the common fabrication methods for these arrays have the limitation to achieve both tailored design and high resolution simultaneously. Herein, we report a high-precision, template-assisted, wet etching (TAWE) method for the preparation of perovskite microstructure arrays. This method possesses the advantages of flexible design, controllable size, and ultrahigh accuracy (the resolution can reach 1 μm or higher). A 20 × 20 inverted pyramid array with a diameter of 3 μm and a period of 4 μm was fabricated using this method. CsPbBr₃ perovskite quant

SUBMITTER: Hu XF 

PROVIDER: S-EPMC9057178 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature