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Highly efficient UV LEDs for disinfection

Award Information
Agency: Department of Defense
Branch: Army
Contract: W911NF-20-C-0020
Agency Tracking Number: A2-7906
Amount: $1,000,000.00
Phase: Phase II
Program: STTR
Solicitation Topic Code: A18B-T006
Solicitation Number: 18.B
Solicitation Year: 2018
Award Year: 2020
Award Start Date (Proposal Award Date): 2019-11-21
Award End Date (Contract End Date): 2021-11-30
Small Business Information
3001 Greyhawk Pl
Apex, NC 27539
United States
DUNS: 078520364
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Will Mecouch
 Senior research engineer
 (919) 858-6365
Business Contact
 Zlatko Sitar
Phone: (919) 858-6365
Research Institution
 North Carolina State University
 Sherrie Settle Sherrie Settle
2701 Sullivan Drive
Raleigh, NC 27695
United States

 (919) 515-2444
 Nonprofit College or University

Treatment of water with ultraviolet (UV) light, which destroys target DNA of microorganisms, is the safest, most reliable, and sustainable way of freeing water from microbial contamination. This process is desired in place of chlorination and is widely used in the US for wastewater treatment. We propose the development of a highly efficient UV LED with emission at 265 nm, with EQE>30%, and WPE>15% for water disinfection and surface sterilization applications. By using single crystal AlN substrates and proper point defect management, we will increase the performance of UV LEDs over the current state-of-the-art. Growth on such low dislocation density substrates increases the crystal quality in the doped layers and active region of the LED which results in superior wall plug efficiency and avoids degradation and poor operating lifetime typically observed in UV LEDs grown on sapphire and other non-native substrates.

* Information listed above is at the time of submission. *

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