Results related to all-solution processed distributed feedback lasers based on a top-layer polymeric resonator geometry will be presented. Such device architecture is very convenient to obtain tunable devices with low threshold and high laser efficiency. Besides, the versatility of the polymeric resonator (a photoresist layer with a surface relief grating, fabricated by holographic lithography and dry etching) has been recently expanded with the demonstration of its use as a stamp to imprint gratings on perovskites. The results presented here include, on the one hand, work related to devices in which the novelty relies on the active compound, which provides improvement on aspects such as the threshold, photostability or the extension of the spectral emission region to the near infrared; and on the other hand, advances on the use of the prepared devices for sensing applications.
|