Lasing in Two-Dimensional Tin Perovskites.

ABSTRACT: Two-dimensional (2D) perovskites have been proposed as materials capable of improving the stability and surpassing the radiative recombination efficiency of three-dimensional perovskites. However, their luminescent properties have often fallen short of what has been expected. In fact, despite attracting considerable attention for photonic applications during the last two decades, lasing in 2D perovskites remains unclear and under debate. Here, we were able to improve the optical gain properties of 2D perovskite and achieve optically pumped lasing. We show that the choice of the spacer cation affects the defectivity and photostability of the perovskite, which in turn influences its optical gain. Based on our synthetic strategy, we obtain PEA₂SnI₄ films with high crysta

SUBMITTER: Alvarado-Leanos AL 

PROVIDER: S-EPMC9798858 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature