Recent Developments of Electrically Pumped Nanolasers

Electrically pumped nanolasers have achieved many exciting achievements and display a wide range of potential application prospects in the fields of optoelectronic chips, information storage, and biosensing. However, there is lacking an in-depth and extensive review of the recent development of electrically pumped nanolasers. Herein, a detailed and comprehensive overview of the electrically pumped nanolasers is first given according to the device configurations, including electrically pumped single nanolaser, nanoarray lasers, nanobeam lasers, and plasmonic nanolasers with different cavity structures. Furthermore, some problems and challenges restricting the development of electrically pumped nanolasers are summarized, and the corresponding solutions and development directions are proposed. This review will provide valuable suggestions for optimizing the device structure of electrically pumped nanolasers with new high-gain semiconductor materials and particularly further promote their rapid application development.