Paving the path to electrically pumped lasers from colloidal-quantum-dot solutions

In a review article, scientists from the U.S. Department of Energy’s Los Alamos National Laboratory assess the status of research into colloidal quantum dot lasers with a focus on prospective electrically pumped devices, or laser diodes. The review analyzes the challenges for realizing lasing with electrical excitation, discusses approaches to overcome them, and surveys recent advances toward this objective.