Partnership for Solid-State Lighting Report of a Workshop (2002) / Chapter Skim
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Panel I: National Goals and Laboratory Contributions
Panel I: National Goals and Laboratory Contributions
Pages 35-47
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From page 35... ...
Ginsberg called the topic of the symposium as "an exciting one, with the potential to not only advance the nation's technical know-how but also to alleviate pressure on the energy crisis and to create high-tech jobs here at home a nice combination." He cautioned, however, that the development of this technology would require considerable talent and many partners. "The advancement of solidstate lighting is a task far too big for [our department]
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From page 36... ...
Solid-State Lighting Solid-state lighting began with inorganic LED s that were first known as signal lights, employed for on-off applications in electronic devices and more recently in traffic signals and exit signs. BTS believes that sufficient R&D can overcome technical barriers and move solid-state lighting into the white-light market to compete both with Edison's incandescent bulbs and with fluorescent technologies.
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From page 37... ...
Lighting is also a key contributor to peak electricity demand and increases the internal heat load of buildings. For each of the four sectors BTS has targeted those with biggest electricity consumption primarily residential incandescent and commercial incandescent and fluorescent lighting as the key areas where solid state will have to be competitive to achieve significant energy savings.
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From page 38... ...
· It creates the opportunity to capture over 2 quads of energy by 2020. Solid state is potentially more environmentally benign than current technologies by avoiding the mercury contamination of landfills from fluorescent tubes.
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From page 39... ...
He summarized recent developments in solid-state lighting sources and said that they "now offer a dramatic new set of options," including LED s that have the potential to be up to 10 times as efficient as standard light bulbs, reducing consumer electricity bills by tens of billions of dollars in the United States. This would bring less pollution, a need to build fewer power plants, and the opportunity to use those monies for other goals.
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From page 40... ...
An Analogous Effort in Extreme Ultraviolet He said that the semiconductor industry is participating in a similar initiative to develop extreme ultraviolet lithography. The industry has needed help in developing new, complex techniques to print computer chips, and formed a partnership with the federal government through a CRADA including six companies and three national laboratories.
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From page 41... ...
Advantages of Integrated Microsystems One enabling technology now emerging is integrated Microsystems, which are particularly cost effective. Integrated Microsystems combine the abilities to sense activity, process and store data, take mechanical action, and communicate, either optically or through RF technologies.
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From page 42... ...
Sandia also estimates that solid-state lighting may be able to accomplish the following by the year 2025: . · Decrease by 10 percent the total global consumption of electricity; · Free over 125 GW of global generating capacity at $50 billion in construction costs; and Reduce global carbon emissions by 200 million tons per year.
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From page 43... ...
3. Ultraviolet-based optoelectronics bring extensive opportunities in several key defensive areas, such as sensing the presence of chemical, radiological, and biological weapons of mass destruction and carrying them on ever smaller airborne detector platforms.
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From page 44... ...
She noted that the NASDAQ sign is an example of what can happen in the future: "It's not a dim little thing; it lights up Times Square." The first companies that manufacture high-efficiency white LEDs with good color rendering, she said, have a huge opportunity to capture a market that is not only large but also new in many ways.4 4Some workshop participants pointed out that companies that are the first to manufacture high efficiency white LEDs with good color rendering will capture a huge market opportunity. Accurate color rendering is extremely significant for the widespread acceptance and application of solid-state lighting in the general illumination market.
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From page 45... ...
Finally, NIST is using electron microscopy and X-ray diffraction to reduce defects produced when gallium nitride LED chips are connected into microelectronic and optoelectronic devices. The laboratory gathers metallurgical data and measures types and concentrations of defects to point the way to the best lowresistance electrical contacts for use with gallium nitride.
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From page 46... ...
Development of solid-state lighting requires more multidisciplinary research in solid-state electronics and optical tools, optical luminescence, and polymer chemistry research. Funding for these areas has multiple benefits, because they will have applications to optoelectronics beyond lighting.
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From page 47... ...
He said that we can expect quicker adoption today partly because LED innovation is moving rapidly, as exemplified by the NASDAQ sign and the proliferating traffic and exit lights. In response to the question about funding requirements, Dr.
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