SBIR Phase I: Doped Quantum Dots for Solid State Lighting

Award Information
Agency:
National Science Foundation
Branch
n/a
Amount:
$99,968.00
Award Year:
2008
Program:
SBIR
Phase:
Phase I
Contract:
0740658
Agency Tracking Number:
0740658
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
PhosphorTech Corporation
351 Thornton Rd, Suite 130, Lithia Springs, GA, 30122
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
025261269
Principal Investigator:
Hisham Menkara
PhD
(404) 664-5008
hisham@phosphortech.com
Business Contact:
Hisham Menkara
PhD
(404) 664-5008
hisham@phosphortech.com
Research Institution:
n/a
Abstract
This Phase I Small Business Innovation Research (SBIR) research project will develop novel high brightness solid-state Light Emitting Diodes (LED) using doped quantum dots. Solid state lighting is rapidly gaining momentum as a highly energy efficient replacement technology for incandescent and eventually fluorescent lighting. However, current high brightness solid state devices suffer from reduced luminous efficiencies due to scattering, re-absorption, and thermal quenching losses inherent in conventional phosphors and standard undoped quantum dots. The proposed doped quantum dots have broad and size-tunable absorption bands, size and impurity tuned emission bands, size-driven elimination of scattering effects, and a distinct separation between absorption and emission bands. In addition, they also display the ability to maintain efficient (even improved) emissions at high temperatures similar to those experienced in today's high brightness LEDs. These new lamps will improve lighting and provide US industry with competitive technologies that will significantly reduce global energy use and environmental pollution. This technology has applicability to all LED light sources where a fluorescent color conversion layer is used. Thus, any current application, such as lighting in portable electronics, automobiles, traffic signaling, will immediately benefit from increased efficiency. The increased efficiency and use of LEDs will lead to significantly reduced energy requirements, lower levels of pollution, reduced toxic waste (e.g., Hg from fluorescent lamps) and a reduced dependence on foreign oil suppliers.

* information listed above is at the time of submission.

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