A paper on perovskite thin film lasers has been published in The Journal of Physical Chemistry C.

Improved Photoluminescence, Electroluminescence, and Laser Characteristics of 1-Naphthylmethylamine-Based Quasi-Two-Dimensional Perovskite Films at Lower Temperatures
Ryotaro Nasu, Xun Tang, Adikari Mudiyanselage Chathuranganie Senevirathne, Toshinori Matsushima, and Chihaya Adachi