Lead Performer: Lumisyn, LLC – Rochester, NY
DOE Total Funding: $149,997
Project Term: April 9, 2018 – January 8, 2019
Funding Type: SBIR
Project Objective
Based on Lumisyn’s prior work on nanocrystals for efficient and stable downconversion, this project will explore the prospect of employing related structures into and in formation of the encapsulating matrix, as a potential replacement for the ubiquitous silicones used in the phosphor-converted LED (pcLED) industry today. Improvements to thermal conductivity result in the advantageous reduction of LED junction temperature, thereby allowing higher driving power while also avoiding conditions of droop and nonradiative losses.
Project Impact
There are numerous fundamental materials challenges that limit thermal conductivity of such structures or that cause unwanted scattering or other optical losses. Each of these materials challenges will be systematically explored and overcome if the project is successful. If successful, achieving the 2020 and 2025 DOE goals for thermal conductivity is possible. The project is also expected to result in the production of novel encapsulants that enable improvements in outcoupling from conventional GaN LEDs by systematic modification of refractive indices. The enhanced outcoupling is projected to lead to further improvements of future pcLED efficacies.
Contacts
DOE Technology Manager: James Brodrick, [email protected]
Lead Performer: Keith Kahen, Lumisyn, LLC