CAREER: Environmentally Stable Electrically Pumped Perovskite Laser
for efficient carrier inversion and lasing. The intended results of this program will be implemented into our on-going micro-laser efforts at NC State University.
This program aims to experimentally demonstrate economical and environmentally stable perovskite lasers that operate under continuous wave optical or electrical pumping at room temperature. Nanoimprint lithography, polycarbonte passivation, and band alignment tailoring of carrier transport layers will be used to achieve this. Low-loss electrodes and low-threshold laser cavity design will also be employed to reduce non-radiative recombination and increase efficient carrier inversion. These results will be implemented into ongoing micro-laser research at NC State.
Sponsor
National Science Foundation (NSF)
The grant—running from January 1, 2022 to March 31, 2025—is for a total of $444,350.
Principle Investigators
Qing Gu
More Details
Transfer from University of Texas-Dallas:The objective of this program is to experimentally demonstrate economical, environmentally stable and silicon-compatible perovskite lasers that operate under continuous wave optical pumping at room temperature. This can be achieved by directly patterning perovskite into high-Q laser resonators with the manufacturing friendly nanoimprint lithography, then defect-passivating the perovskite with polycarbonate. This program further aims to demonstrate electrically pumped perovskite lasers through band alignment tailoring of carrier transport layers for efficient current injection, perovskite-polymer blending for minimal leakage current, low-loss electrode formation to reduce wasteful non-radiative recombination at electrodes, and low-threshold laser cavity design