Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Tungsten photonic crystals may answer the need for more power in advanced electrical applications

25.08.2003


Technical Insights’ High Tech Materials Alert



Scientists have discovered that when lattice tungsten filaments are heated, they are capable of emitting greater energy than solid tungsten filaments.

"Because of this significant advance, lattice tungsten filaments will likely meet the increasing power requirements of high-tech electrical systems, such as those in hybrid electric cars, sophisticated boats, engines, and industrial waste heat-driven electrical generators," says Technical Insights Analyst Aninditta Savitry.


Tungsten lattice emissions transfer more energy than solid tungsten filaments into certain bands of near-infrared wavelengths. The energy is used by photovoltaic cells to convert light into electricity. "The next generation of lighting may arrive if the results that are now possible at 1.5 microns can be extended to the entire visible spectrum," says Savitry.

Tungsten lattices have crystalline regularity and are capable of bending light without losing any energy. Computer chip production technology has enabled mass fabrication of these sub-micron-featured lattices. Precise channels of the crystal lattice have been constructed, forming a home for particular wavebands as they travel. The innovation here is to use the channels not to bend light, but to permit input energy to exit only with the desired frequency bands, and thereby enhance output.

Existing receivers absorb only limited bands of incoming energy across the wide spectrum of infrared radiation. Photonic lattices, when placed between a solar, dynamo, or fire generator and receiver, can be engineered to absorb energy.

Tungsten lattices have exhibited a conversion efficiency of 34 percent and electrical power density of about 14 W/cm2 when heated to 1,250 degree centigrade in a vacuum.

New analysis by Technical Insights, a business unit of Frost & Sullivan (http://www.ti.frost.com), featured in High-Tech Materials Alert, presents insights into the discovery of tungsten photonic crystals and their capabilities in providing higher power than competing materials.

Frost & Sullivan is a global leader in strategic growth consulting. Acquired by Frost & Sullivan, Technical Insights is an international technology analysis business that produces a variety of technical news alerts, newsletters, and reports. This ongoing growth opportunity analysis of tungsten photonic crystals is covered in High Tech Materials Alert, a Technical Insights subscription service, and in Advanced Materials Update, a Frost & Sullivan Technical Insights technology report. Technical Insights and Frost & Sullivan also offer custom growth consulting to a variety of national and international companies. Executive summaries and interviews are available to the press.


###
High Tech Materials Alert

Contact:
USA:
Julia Paulson
P: 210-247-3870
F: 210-348-1003
E: jpaulson@frost.com

APAC:
Pramila Gurtoo
DID: 603-6204-5811
Gen: 603-6204-5800
Fax: 603-6201-7402
E: pgurtoo@frost.com

Julia Paulson | EurekAlert!
Further information:
http://www.ti.frost.com/
http://www.frost.com/
http://www.Technical-Insights.frost.com

More articles from Power and Electrical Engineering:

nachricht Linear potentiometer LRW2/3 - Maximum precision with many measuring points
17.05.2017 | WayCon Positionsmesstechnik GmbH

nachricht First flat lens for immersion microscope provides alternative to centuries-old technique
17.05.2017 | Harvard John A. Paulson School of Engineering and Applied Sciences

All articles from Power and Electrical Engineering >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Can the immune system be boosted against Staphylococcus aureus by delivery of messenger RNA?

Staphylococcus aureus is a feared pathogen (MRSA, multi-resistant S. aureus) due to frequent resistances against many antibiotics, especially in hospital infections. Researchers at the Paul-Ehrlich-Institut have identified immunological processes that prevent a successful immune response directed against the pathogenic agent. The delivery of bacterial proteins with RNA adjuvant or messenger RNA (mRNA) into immune cells allows the re-direction of the immune response towards an active defense against S. aureus. This could be of significant importance for the development of an effective vaccine. PLOS Pathogens has published these research results online on 25 May 2017.

Staphylococcus aureus (S. aureus) is a bacterium that colonizes by far more than half of the skin and the mucosa of adults, usually without causing infections....

Im Focus: A quantum walk of photons

Physicists from the University of Würzburg are capable of generating identical looking single light particles at the push of a button. Two new studies now demonstrate the potential this method holds.

The quantum computer has fuelled the imagination of scientists for decades: It is based on fundamentally different phenomena than a conventional computer....

Im Focus: Turmoil in sluggish electrons’ existence

An international team of physicists has monitored the scattering behaviour of electrons in a non-conducting material in real-time. Their insights could be beneficial for radiotherapy.

We can refer to electrons in non-conducting materials as ‘sluggish’. Typically, they remain fixed in a location, deep inside an atomic composite. It is hence...

Im Focus: Wafer-thin Magnetic Materials Developed for Future Quantum Technologies

Two-dimensional magnetic structures are regarded as a promising material for new types of data storage, since the magnetic properties of individual molecular building blocks can be investigated and modified. For the first time, researchers have now produced a wafer-thin ferrimagnet, in which molecules with different magnetic centers arrange themselves on a gold surface to form a checkerboard pattern. Scientists at the Swiss Nanoscience Institute at the University of Basel and the Paul Scherrer Institute published their findings in the journal Nature Communications.

Ferrimagnets are composed of two centers which are magnetized at different strengths and point in opposing directions. Two-dimensional, quasi-flat ferrimagnets...

Im Focus: World's thinnest hologram paves path to new 3-D world

Nano-hologram paves way for integration of 3-D holography into everyday electronics

An Australian-Chinese research team has created the world's thinnest hologram, paving the way towards the integration of 3D holography into everyday...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Marine Conservation: IASS Contributes to UN Ocean Conference in New York on 5-9 June

24.05.2017 | Event News

AWK Aachen Machine Tool Colloquium 2017: Internet of Production for Agile Enterprises

23.05.2017 | Event News

Dortmund MST Conference presents Individualized Healthcare Solutions with micro and nanotechnology

22.05.2017 | Event News

 
Latest News

How herpesviruses win the footrace against the immune system

26.05.2017 | Life Sciences

Water forms 'spine of hydration' around DNA, group finds

26.05.2017 | Life Sciences

First Juno science results supported by University of Leicester's Jupiter 'forecast'

26.05.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>