Journal article
Bright Mid-Wave Infrared Resonant-Cavity Light-Emitting Diodes Based on Black Phosphorus
N Gupta, H Kim, NS Azar, SZ Uddin, DH Lien, KB Crozier, A Javey
Nano Letters | AMER CHEMICAL SOC | Published : 2022
Abstract
The mid-wave infrared (MWIR) wavelength range plays a central role in a variety of applications, including optical gas sensing, industrial process control, spectroscopy, and infrared (IR) countermeasures. Among the MWIR light sources, light-emitting diodes (LEDs) have the advantages of simple design, room-temperature operation, and low cost. Owing to the low Auger recombination at high carrier densities and direct bandgap of black phosphorus (bP), it can serve as a high quantum efficiency emitting layer in LEDs. In this work, we demonstrate bP-LEDs exhibiting high external quantum efficiencies and wall-plug efficiencies of up to 4.43 and 1.78%, respectively. This is achieved by integrating t..
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Grants
Awarded by U.S. Department of Energy
Funding Acknowledgements
The work at Berkeley was funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division under Contract DE-AC02-05-CH11231 (EMAT Program KC1201). The work at Melbourne was supported by the Australian Research Council (ARC) Centre of Excellence for Transformative Meta-Optical Systems (Project ID CE200100010) and the ARC Discovery Projects Scheme (DP210103428).