Advances in Near‐Infrared Organic Micro/Nanolasers

Abstract Near‐infrared (NIR) micro/nanolasers hold great potential for integration of optoelectronic circuitry, medical diagnosis, sensing, and so forth. For the laser medium, organic gain molecules are highly attractive in NIR micro/nanolasers due to the inherent merits of abundant excited‐state processes, chemical tunability, and solution processing. Herein, the recent advances of NIR organic micro/nanolasers on nondoped molecule aggregates are reviewed from the aspects of gain materials, fabrication of self‐assembled microcavities, and NIR lasing actions, as well as some typical examples in applications, supporting the effective construction of internal quantitative relationship of gain molecular structures, excited‐state gain processes, self‐assembled micro/nanostructures, and NIR lasing performance. Finally, conclusion and outlook are given, aiming at offering valuable revelation for further development of high‐performance NIR organic micro/nanolasers.