News tagged with gallium
New method to make gallium arsenide solar cells
(PhysOrg.com) -- A new "transfer-printing" method of making light-sensitive semiconductors could make solar cells, night-vision cameras, and a range of other devices much more efficient, and could transform ...
May 20, 2010 |
4.8 / 5 (24) |
4
|
Team Harnessing Power of Photosynthesis To Make 'Green' Fuel
(PhysOrg.com) -- When people at cocktail parties used to ask Charles Schmuttenmaer what he did, he would say he was a chemistry professor who worked on transient-photo conductivity in gallium arsenide. "At ...
May 07, 2010 |
3.9 / 5 (7) |
0
|
Fast Transistors Could Save Energy
(PhysOrg.com) -- Transistors, the cornerstone of electronics, are lossy and therefore consume energy. Swiss esearchers from the ETH Zurich and EPF Lausanne have developed transistors targeting high switching ...
Apr 20, 2010 |
4.4 / 5 (15) |
4
|
New PV cell generates electricity from IR and UV light
(PhysOrg.com) -- A prototype of a new type of photovoltaic (PV) cell that generates electricity from visible, infrared and ultraviolet light has been demonstrated by a group of Japanese scientists. It could ...
Mar 24, 2010 |
4.8 / 5 (16) |
3
|
Electrons on the brink: Fractal patterns may be key to semiconductor magnetism (w/ Video)
(PhysOrg.com) -- Just as the heartbeats of today's electronic devices depend on the ability to switch the flow of electricity in semiconductors on and off with lightning speed, the viability of the "spintronic" ...
Feb 05, 2010 |
4.4 / 5 (16) |
2
|
First germanium laser brings us closer to 'optical computers'
(PhysOrg.com) -- MIT researchers have demonstrated the first laser built from germanium that can produce wavelengths of light useful for optical communication. It’s also the first germanium laser to operate ...
Feb 04, 2010 |
4.8 / 5 (27) |
8
|
A Venus flytrap for nuclear waste
Not every object is food to a Venus flytrap. Like the carnivorous plant, a new material developed at Northwestern University permanently traps only its desired prey, the radioactive ion cesium, and not other harmless ions ...
Jan 26, 2010 |
4.5 / 5 (8) |
0
|
Researcher Uses Graphene Quilts to Keep Things Cool
(PhysOrg.com) -- University of California, Riverside Professor of Electrical Engineering and Chair of Materials Science and Engineering Alexander Balandin is leading several projects to explore ways to use ...
Nanotechnology / Nanomaterials
Dec 21, 2009 |
4.8 / 5 (22) |
1
Gallium nitride transistor could replace silicon
(PhysOrg.com) -- A Cornell researcher has created an extremely efficient transistor made from gallium nitride, which may soon replace silicon as king of semiconductors for power applications.
Dec 08, 2009 |
4.7 / 5 (38) |
6
Panasonic Develops A Gallium Nitride (GaN) Inverter IC for Motor Drive with High Efficiency
Panasonic today announced the development of a Gallium Nitride (GaN) -based monolithic inverter integrated circuit (IC) for motor drive. The integrated six GaN-based transistors can be independently driven ...
Dec 08, 2009 |
5 / 5 (3) |
0
Shape shifters: Researchers create new breed of antennas
(PhysOrg.com) -- Antennas aren't just for listening to the radio anymore. They're used in everything from cell phones to GPS devices. Research from North Carolina State University is revolutionizing the field ...
Dec 01, 2009 |
4.7 / 5 (13) |
4
Fujitsu Develops Technology for Low-Temperature Full-Service Direct Formation of Graphene Transistors on Large-Scale Sub
Fujitsu Laboratories today announced, as a world first, the development of a novel technology for forming graphene transistors directly on the entire surface of large-scale insulating substrates at low temperatures ...
Nov 27, 2009 |
5 / 5 (24) |
4
Spin polarization achieved in room temperature silicon
(PhysOrg.com) -- A group in The Netherlands has achieved a first: injection of spin-polarized electrons in silicon at room temperature. This has previously been observed only at extremely low temperatures, ...
Nov 27, 2009 |
4.7 / 5 (23) |
0
Danish nanowires have great potential
Danish nanophysicists have developed a new method for manufacturing the cornerstone of nanotechnology research - nanowires. The discovery has great potential for the development of nanoelectronics and highly ...
Nov 02, 2009 |
3 / 5 (1) |
0
Sharp Develops Solar Cell with World's Highest Conversion Efficiency of 35.8%
Sharp Corporation has achieved the world's highest solar cell conversion efficiency (for non-concentrator solar cells) of 35.8% using a triple-junction compound solar cell.
Technology / Energy & Green Tech
Oct 22, 2009 |
4.5 / 5 (26) |
11
