Continuous wave amplified spontaneous emission in phase-stable lead halide perovskites

Nature Communications
Philipp BrennerUli Lemmer

Abstract

Sustained stimulated emission under continuous-wave (CW) excitation is a prerequisite for new semiconductor materials being developed for laser gain media. Although hybrid organic-inorganic lead-halide perovskites have attracted much attention as optical gain media, the demonstration of room-temperature CW lasing has still not been realized. Here, we present a critical step towards this goal by demonstrating CW amplified spontaneous emission (ASE) in a phase-stable perovskite at temperatures up to 120 K. The phase-stable perovskite maintains its room-temperature phase while undergoing cryogenic cooling and can potentially support CW lasing also at higher temperatures. We find the threshold level for CW ASE to be 387 W cm-2 at 80 K. These results indicate that easily-fabricated single-phase perovskite thin films can sustain CW stimulated emission, potential at higher temperatures as well, by further optimization of the material quality in order to extend the carrier lifetimes.

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Citations

Jan 22, 2020·Chemical Society Reviews·Haiyun DongYong Sheng Zhao
May 15, 2020·Advanced Materials·Lianfeng ZhaoBarry P Rand
Nov 27, 2019·Materials·Elena V UshakovaAlexander V Baranov
Apr 10, 2020·The Journal of Chemical Physics·Tze Chien SumSwee Sien Lim
May 29, 2020·Advanced Materials·Huiwang LianGang Han
Jun 17, 2020·Chemical Society Reviews·Cheng-Hsin LuZhiqun Lin
Feb 13, 2021·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Maria Luisa De GiorgiMarco Anni
Jul 1, 2020·Chemistry of Materials : a Publication of the American Chemical Society·Agnieszka NoculakMaksym V Kovalenko
Jul 23, 2020·Journal of the American Chemical Society·Lingling MaoRam Seshadri
Sep 29, 2020·Journal of the American Chemical Society·Laura PiveteauMaksym V Kovalenko
Sep 4, 2021·Advanced Materials·Lianfeng ZhaoBarry P Rand

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Methods Mentioned

BETA
atomic force microscopy

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