Conventional solar cell efficiency could be increased from the current limit of 30 percent to more than 60 percent, suggests new research on semiconductor nanocrystals, or quantum dots, led by chemist Xiaoyang Zhu at The ...
Nanomaterials
Jun 17, 2010
4
0
(PhysOrg.com) -- An international team, including Oxford University scientists, has discovered six diverse new planets, from 'shrunken-Saturns' to 'bloated hot Jupiters', as well a rare brown dwarf with 60 times the mass ...
Astronomy
Jun 14, 2010
3
0
(PhysOrg.com) -- The discovery of nine new transiting exoplanets is announced today at the RAS National Astronomy Meeting. When these new results were combined with earlier observations of transiting exoplanets astronomers ...
Astronomy
Apr 13, 2010
19
0
Boston College researchers have observed the "hot electron" effect in a solar cell for the first time and successfully harvested the elusive charges using ultra-thin solar cells, opening a potential avenue to improved solar ...
General Physics
Dec 11, 2009
3
0
(PhysOrg.com) -- Hawaii may be paradise for vacationers, but for geologists it has long been a puzzle. Plate tectonic theory readily explains the existence of volcanoes at boundaries where plates split apart or collide, but ...
Earth Sciences
Dec 3, 2009
1
0
Round-the-world balloooning pioneer Bertrand Piccard unveiled his solar-powered aircraft in Switzerland on Friday, ready for another trend-setting circumnavigation of the globe powered solely by the sun.
Energy & Green Tech
Jun 26, 2009
21
0
(PhysOrg.com) -- Virtual WiFi will enable Windows 7 and future operating systems to see a single WLAN adapter as multiple WLAN adapters by the operating system. This feature is available in Windows 7 RC1, however because ...
Andrei Mitran of Cary says he has no desire to live "off the grid." But when choosing a replacement for his 18-year-old hot water heater, the computer programmer says he decided to look into purchasing a solar unit.
Energy & Green Tech
Jan 21, 2009
4
0
(PhysOrg.com) -- Transiting exoplanets are routinely detected when they pass in front of their parent star as viewed from the Earth, which only happens by chance. The transit event causes a small drop in the observed starlight, ...
Astronomy
Jan 14, 2009
4
0
Although our universe may seem stable, having existed for a whopping 13.7 billion years, several experiments suggest that it is at risk—walking on the edge of a very dangerous cliff. And it's all down to the instability ...
General Physics
Aug 5, 2024
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