SBIR-STTR Award

High-Efficiency Micro-Pillar Infrared Light Emitting Diode Arrays for Infrared Scene Projection
Award last edited on: 9/6/2022

Sponsored Program
SBIR
Awarding Agency
DOD : Navy
Total Award Amount
$139,999
Award Phase
1
Solicitation Topic Code
N211-021
Principal Investigator
Matt Bellus

Company Information

Firefly Photonics LLC

5770 Morse Road NE
Solon, IA 52333
   (319) 541-7797
   N/A
   www.fireflyphotonics.com
Location: Single
Congr. District: 02
County: Johnson

Phase I

Contract Number: N68936-21-C-0052
Start Date: 7/20/2021    Completed: 1/18/2022
Phase I year
2021
Phase I Amount
$139,999
Here we propose to enhance the wallplug efficiency of cascaded superlattice light emitting diodes (C-SLEDs) from 6.1 Å III-V semiconductor materials by micro-structuring. At low temperatures, C-SLEDs have already achieved greater than 1% quantum efficiency when operating in the mid-wave infrared (MWIR). Preliminary electromagnetic simulations indicate that micro-structuring enhances efficiency at least 10-15x through improved light extraction and the Purcell effect. The micro-structured C-SLED can be fabricated simply with photolithography, and is compatible with fabrication of large scale, flip-chipped infrared LED (IRLED) arrays for thermal scene projectors (TSPs). Higher efficiency IRLEDs in the MWIR and the long-wave infrared (LWIR) are expected to help greatly with problematic thermal management in IRLED-based TSPs, where large amounts of heat are generated by low efficiency devices. High power, high efficiency IRLEDs will also be very attractive for use in optical based sensors of gasses such as carbon dioxide and methane.

Phase II

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Start Date: 00/00/00    Completed: 00/00/00
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