Energy Efficiency

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BES Web Highlight: Single-mode gallium nitride nanowire lasers

A new top-down method for fabricating gallium nitride (GaN) nanowires with precisely controlled geometries enables single-mode, rather than typically-observed multi-mode, lasing behavior. Single-mode lasing arises from strong mode competition induced by careful restriction of the nanowire dimensions. This research was published by Sandia National Laboratories and is featured in a BES EFRC newsletter that highlights the [...]

By | 2016-12-02T18:49:06+00:00 January 28th, 2013|EC, Energy Efficiency, Solid-State Lighting|Comments Off on BES Web Highlight: Single-mode gallium nitride nanowire lasers

“Solid-state Lighting: ‘The case’ 10 Years After and Future Prospects” paper will be translated in Chinese

In 2011, ERFC scientist Jeff Tsao, in conjunction with Roland Haitz and Taiming Zhou, published an SSLS paper titled, "Solid-state Lighting: 'The Case' 10 Years After and Future Prospects". The paper critiques a previously released white paper titled, "The Case for a National Research Program on Semiconductor Lighting" while providing new predictions for the next [...]

By | 2016-12-02T18:49:06+00:00 January 14th, 2013|EC, Energy, Energy Efficiency, News & Events, Solid-State Lighting|Comments Off on “Solid-state Lighting: ‘The case’ 10 Years After and Future Prospects” paper will be translated in Chinese

NASA Earth at Night Video

Have you ever wondered what the Earth looks like at night? NASA provides a clear, cloud-free view of the Earth at night using the Suomi National Polar-orbiting Partnership Satellite. The satellite utilizes an instrument known as the Visible Infrared Radiometer Suite (VIIRS), which allows the satellite to capture images of a "remarkably detailed view of [...]

By | 2016-12-02T18:49:06+00:00 January 9th, 2013|EC, Energy, Energy Efficiency, Global, Modeling, News & Events, Solid-State Lighting, Videos|Comments Off on NASA Earth at Night Video

Sandia Demonstrated First-Time, Single-Mode Lasing in Gallium-Nitride Nanowire Lasers

An array of GaN nanowires. Semiconductor nanowire lasers have attracted intense interest as promising compact, low-power coherent light sources for on-chip applications, many of which (e.g., imaging, multiplex communica­tion, data storage) desire high beam quality and spectral purity—conditions that can be satisfied by single-mode operation in nanowire lasers. However, due to the lack of [...]

By | 2015-05-11T20:58:23+00:00 January 8th, 2013|CINT, Energy, Energy Efficiency, Facilities, Materials Science, News, News & Events, Research & Capabilities, Solid-State Lighting|Comments Off on Sandia Demonstrated First-Time, Single-Mode Lasing in Gallium-Nitride Nanowire Lasers

Sandia Wide-Bandgap Semiconductor Workshop

In response to increased interest in wide-bandgap (WBG) semiconductor projects by DOE, on October 30, 2012, Sandia hosted a one-day brain­storming workshop aimed at identifying the value, scope, structure, and partnership oppor­tunities of a potential National Center for Wide Bandgap Semiconduc­tors. Participants from DOE, industry, academia, and other labs participated in a series of breakout [...]

By | 2016-12-02T18:49:07+00:00 January 8th, 2013|Capabilities, Customers & Partners, Energy, Energy Efficiency, Materials Science, News, News & Events, Office of Science, Partnership, Research & Capabilities, Solid-State Lighting, Workshops|Comments Off on Sandia Wide-Bandgap Semiconductor Workshop

Manos Kioupakis visits Sandia and gives an SSL Special Seminar

Professor Emmanouil (Manos) Kioupakis, from the University of Michigan, visited Sandia for technical discussions and to give a seminar on "Auger Recombination in Nitride Light-Emitting Diodes from First Principles Calculations." Professor Kioupakis just finished a post-doc with Professor Chris van de Walle at UC Santa Barbara, and has been doing first-principles calculations of Auger recombination [...]

By | 2016-12-16T21:16:05+00:00 December 13th, 2012|EC, Energy, Energy Efficiency, Events, News & Events, Solid-State Lighting|Comments Off on Manos Kioupakis visits Sandia and gives an SSL Special Seminar

Sandia Expands an International Collaboration and Web Database on Engine Fuel Spray Combustion Research

Responding to the need to accelerate the development of predictive engine spray combustion modeling for the design of more fuel-efficient, low-emission engines, Sandia established a multi-institution collaboration called the Engine Combustion Network (ECN). The ECN provides highly leveraged, vetted datasets for spray combustion model development by using contributions from many experimental and modeling participants at [...]

By | 2016-12-02T18:49:10+00:00 November 13th, 2012|CRF, Energy, Energy Efficiency, Facilities, News, News & Events, Partnership, Transportation Energy|Comments Off on Sandia Expands an International Collaboration and Web Database on Engine Fuel Spray Combustion Research

Successful Conclusion of SSLS EFRC’s High School Summer 2012 Internships

Our SSLS EFRC brought in four high school interns this summer.  All were between their junior and senior years of high school, and had strong backgrounds math and science.  Our interns participated in a wide range of activities: ES&H courses, intense solid-state lighting science and technology reading, experimental work in one of our optics laboratories, [...]

By | 2016-12-02T18:49:13+00:00 August 10th, 2012|Energy Efficiency, News, News & Events, Solid-State Lighting|Comments Off on Successful Conclusion of SSLS EFRC’s High School Summer 2012 Internships

Mesa del Sol Unveils First Smart Grid in the Nation

Mesa del Sol, Albuquerque’s visionary mixed-use, master planned community in the southern part of the city, once again made history when it unveiled its new Smart Grid System—the first of its kind in the nation. The Smart Grid System, in conjunction with the PNM Prosperity Energy Storage Project,the nation’s first solar storage facility [...]

By | 2016-12-02T18:49:14+00:00 June 1st, 2012|Energy, Energy Assurance, Energy Efficiency, Energy Surety, Facilities, Global Climate & Energy, Grid Integration, Mesa del Sol, Microgrid, News, News & Events, Renewable Energy, SMART Grid, Solar|Comments Off on Mesa del Sol Unveils First Smart Grid in the Nation

Sandia’s Brayton-Cycle Turbine Boosts Small Nuclear Reactor Efficiency

Sandia National Laboratories is seeking an industry partner to market a turbine system that could substantially improve energy efficiency in small modular nuclear reactors. The system uses carbon dioxide in a closed-loop “Brayton-cycle” turbine to crank up electric conversion from heat, said Gary Rochau, manager of the advanced nuclear concepts group at Sandia’s [...]

By | 2016-12-02T18:49:15+00:00 June 1st, 2012|Energy, Energy Efficiency, News, News & Events, Nuclear Energy|Comments Off on Sandia’s Brayton-Cycle Turbine Boosts Small Nuclear Reactor Efficiency