%0 Journal Article %1 brenner2019continuous %A Brenner, Philipp %A Bar-On, Ofer %A Jakoby, Marius %A Allegro, Isabel %A Richards, Bryce S. %A Paetzold, Ulrich W. %A Howard, Ian A. %A Scheuer, Jacob %A Lemmer, Uli %D 2019 %J Nature Communications %K amplified continuous emission spontaneous wave %N 1 %P 988-- %R 10.1038/s41467-019-08929-0 %T Continuous wave amplified spontaneous emission in phase-stable lead halide perovskites %U https://doi.org/10.1038/s41467-019-08929-0 %V 10 %X 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.

@article{brenner2019continuous, 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.}, added-at = {2019-03-06T12:52:49.000+0100}, author = {Brenner, Philipp and Bar-On, Ofer and Jakoby, Marius and Allegro, Isabel and Richards, Bryce S. and Paetzold, Ulrich W. and Howard, Ian A. and Scheuer, Jacob and Lemmer, Uli}, biburl = {https://www.bibsonomy.org/bibtex/2696907d39293eec10b906172c2593e0a/sere}, doi = {10.1038/s41467-019-08929-0}, interhash = {31a1ba886646247f36d3ec32197b9729}, intrahash = {696907d39293eec10b906172c2593e0a}, issn = {20411723}, journal = {Nature Communications}, keywords = {amplified continuous emission spontaneous wave}, number = 1, pages = {988--}, refid = {Brenner2019}, timestamp = {2019-03-06T12:52:49.000+0100}, title = {Continuous wave amplified spontaneous emission in phase-stable lead halide perovskites}, url = {https://doi.org/10.1038/s41467-019-08929-0}, volume = 10, year = 2019 }