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11630
Hydrogen Fuel Cell-Powered Mobile Lighting System
Posted in Tech Briefs, Videos, Alternative Fuels, Green Design & Manufacturing, Greenhouse Gases, Energy Efficiency, Energy, Lighting, GDM on Tuesday, November 01 2011
A new mobile lighting system features a fuel cell running on pure hydrogen, resulting in zero-emission electrical power. The fuel cell produces electricity for an advanced, power-saving light-emitting plasma (LEP) lighting system and additional auxiliary power up to 2.5 kW, which allows extra equipment (such as power tools, public address systems, or security metal detectors) to be powered by the unit at the same time the system is providing illumination.
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11629
Transparent Conducting Oxides and Undercoat Technologies for Economical OLED Lighting
Posted in Tech Briefs, Energy Efficiency, Energy, Lighting, GDM on Tuesday, November 01 2011
Economics is a key factor for application of organic light emitting diodes (OLED) in general lighting relative to OLED flat panel displays that can handle high-cost materials such as indium tin oxide (ITO) or indium zinc oxide (IZO) as the transparent conducting oxide (TCO) on display glass. For OLED lighting to penetrate into general illumination, economics and sustainable materials are critical.
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11093
Hybrid Power Management-Based Vehicle Architecture
Posted in Tech Briefs, Energy Storage, Energy Efficiency, Energy, Transportation, GDM on Tuesday, September 13 2011
Hybrid Power Management (HPM) is the integration of diverse, state-of-the-art power devices in an optimal configuration for space and terrestrial applications. The basic vehicle architecture consists of a primary power source, and possibly other power sources, that provides all power to a common energy storage system that is used to power the drive motors and vehicle accessory systems.
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10853
Data Service Provider Cost Estimation Tool
Posted in Tech Briefs on Friday, September 09 2011
The Data Service Provider Cost Estimation Tool (CET) and Comparables Database (CDB) package provides to NASA’s Earth Science Enterprise (ESE) the ability to estimate the full range of year-by-year lifecycle cost estimates for the implementation and operation of data service providers required by ESE to support its science and applications programs.
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10714
GaN-Ready Aluminum Nitride Substrates
Posted in Tech Briefs, Energy Efficiency, Energy, Lighting, GDM on Wednesday, August 17 2011
The objective of this project was to develop and then demonstrate the efficacy of a cost-effective approach for a low-defect-density substrate on which aluminum indium gallium nitride (AlInGaN) light-emitting diodes (LEDs) can be fabricated. The efficacy of this GaN-ready substrate would then be tested by growing high-efficiency, long-lifetime InxGa1-xN blue LEDs.
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10713
LED Display Engineering
Posted in Tech Briefs, Energy Efficiency, Energy, Lighting, GDM on Wednesday, August 17 2011
The primary objective of this project was to develop and implement a method that compensates for the inefficiency of the green light-emitting diode (LED). The proposed engineering solution was to use RGBW combination in every pixel to save energy. A 32" x 16" display with pixel spacing of one inch, which is usually used for outdoor applications, was built.
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10712
Self-Activating and Doped Tantalate Phosphors
Posted in Tech Briefs, Energy Efficiency, Energy, Lighting, GDM on Wednesday, August 17 2011
Phosphors are useful in numerous applications including lighting. Tantalates are very promising materials because they are especially robust and resistant to chemical degradation. Studies have shown that rare-earth tantalates are excellent host lattices for europium (Eu)-doped red-emitting phosphors, excited by blue light.
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A new lab at the National Institute of Standards and Technology (NIST) is dedicated to improving the quality of light that LEDs produce. Take a look inside the lab in this video.
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