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Performing Organization: Key Technical Contact: DOE HQ Technology Manager: FY 2005 Budget: Photonics Research and Development University of Nevada Las Vegas (UNLV) Tom Williams, UNLV Research Foundation, 702-895-2833, thomas.williams@unlv.edu Jeffrey Mazer, 202-586-2455, jeffrey.mazer@ee.doe.gov $1,500K (DOE), $372K (UNLV cost share) ____________________________________________________________________________________ Objectives • Further develop advanced lighting technologies that will improve national energy conversion efficiencies, reduce heat load, increase brightness, and significantly lower the cost of conventional lighting technologies. • Establish a comprehensive infrastructure within UNLV focused on photonics research and development, thus bringing improved lighting technologies to Las Vegas, Nevada, the world’s largest entertainment venue. • Develop and implement an academic program within the UNLV College of Engineering that concentrates on photonics research, development, testing and evaluation, thus providing credentialed lighting professionals for the entertainment industry and for the nation. Accomplishments • Award was issued in September 2005. Future Directions • Advance these lighting technologies toward a demonstration phase, which would provide DOE with solid data on performance and costs. ____________________________________________________________________________________ 1. Introduction Annual energy consumption for lighting in the United States is estimated to be eight quadrillion British thermal units, which is 20% of all electricity consumed and 8% of total energy consumption in the nation. Replacement of current lighting with solid-state lighting could result in a 20% reduction in energy consumption, which would translate to a cumulative savings on electric bills of more than $125 billion from 2005 to 2025 for the consumer. In addition, hybrid solar lighting holds promise to provide the benefits of natural lighting, thus enhancing national energy savings and increasing worker productivity, without the disadvantages of conventional daylighting techniques. The UNLV Research Foundation, a nonprofit affiliate of UNLV, has teamed with UNLV, Boston University (BU), and Oak Ridge National Laboratory (ORNL) to conduct a multi-faceted, multi-year photonics R&D program. The goal is to further develop advanced lighting technologies that significantly lower the cost of conventional lighting. 2. Technical Approach and Planned FY 2006 Activities 2.1 Task 1: Light Emitting Diode Research UNLV and BU will team to develop quantum dot light-emitting diodes (QDLEDs) that will have improved energy conversion efficiency. Unlike traditional light-emitting diodes (LEDs), in which the color of the emitted light is determined by the LED material, the color of QDLED emission is determined by the size of the quantum dots (QDs). Thus, multiple-color light output can be realized from a single LED by incorporating QDs of the same material with different dimensions. Displays based on QDLEDs will have significantly improved characteristics, including longer lifetimes, increased brightness, reduced heat load, and lower cost. In addition, display lighting will have the ability for dual use as PV panels with the potential for being self-powered. The team will also conduct research, led by BU, focused on the indium gallium nitrogen (InGaN) part of the electromagnetic spectrum to EERE Crosscutting Activities 186PDF Image | DOE Solar Energy Technologies Program
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