Patterning Multicolored Microdisk Laser Arrays of Cesium Lead Halide Perovskite.

He, Xianxiong; Liu, Peng; Zhang, Haihua; Liao, Qing; Yao, Jiannian; Fu, Hongbing · Adv Mater · 2017

basic_science · Level V

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Abstract

A polydimethylsiloxane cylindrical-hole-template-confined solution-growth method is developed to fabricate densely packed CsPbCl<sub>3-</sub><sub>x</sub> Br <sub>x</sub> microdisk laser arrays. Furthermore, a strategy to integrate multicolored microdisk laser (MDL) arrays is demonstrated that simultaneously lase in the deep blue, blue, cyan, and green by means of gas-phase replacement of Cl by Br from initial CsPbCl<sub>3</sub> MDLs in HBr vapor.