The methods and materials described herein contemplate the use films of colloidal quantum dots as a gain medium in a vertical-cavity surface-emitting laser. The present disclosure demonstrates a laser with single-exciton gain in the red, green, and blue wavelengths. Leveraging this nanocomposite gain, the results realize a significant step toward full-color single-material lasers.
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT
This invention was made in part with government support under Grant No. DEFG02-07ER46387 awarded by Department of Energy/Basic Energy Sciences and Grant No. ECCS-1128331 awarded by National Science Foundation. The United States government has certain rights in this invention.