News tagged with zinc oxide
Related topics: solar cells , nanowires
New rechargeable zinc-air batteries coming soon
(PhysOrg.com) -- A new breed of rechargeable zinc-air batteries is soon to be available, and may replace lithium-ion batteries in cell phones, laptops and other consumer items. Lithium-ion batteries store ...
Technology / Energy & Green Tech
Oct 29, 2009 |
4.4 / 5 (48) |
15
'Seeing' through paint
(PhysOrg.com) -- When light passes through materials that we consider opaque, such as paint, biological tissue, fabric and paper, it is scattered in such a complex way that an image does not come through. ...
Mar 18, 2010 |
4.7 / 5 (24) |
7
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Nanotrees harvest the sun's energy to turn water into hydrogen fuel
(PhysOrg.com) -- University of California, San Diego electrical engineers are building a forest of tiny nanowire trees in order to cleanly capture solar energy without using fossil fuels and harvest it for ...
Mar 07, 2012 |
5 / 5 (21) |
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Nanogenerators grow strong enough to power small conventional electronics (w/ Video)
Blinking numbers on a liquid-crystal display (LCD) often indicate that a device's clock needs resetting. But in the laboratory of Zhong Lin Wang at Georgia Tech, the blinking number on a small LCD signals ...
Nov 08, 2010 |
5 / 5 (18) |
5
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New nanogenerator may charge iPods and cell phones with a wave of the hand
Imagine if all you had to do to charge your iPod or your BlackBerry was to wave your hand, or stretch your arm, or take a walk? You could say goodbye to batteries and never have to plug those devices into ...
Mar 26, 2009 |
4.3 / 5 (18) |
3
Novel solar reactor may enable clean fuel derived from sunlight
Producing hydrogen from non-fossil fuel sources is a problem that continues to elude many scientists but University of Delaware’s Erik Koepf thinks he may have discovered a solution.
Technology / Energy & Green Tech
Apr 04, 2012 |
4.3 / 5 (18) |
0
Selenium makes more efficient solar cells
Call it the anti-sunscreen. That's more or less the description of what many solar energy researchers would like to find -- light-catching substances that could be added to photovoltaic materials in order ...
Nanotechnology / Nanomaterials
Aug 03, 2010 |
4.5 / 5 (16) |
6
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'Nanospears' could lead to better solar cells, lasers, lighting
(PhysOrg.com) -- Growing - and precisely aligning - microscopic, spear-shaped zinc oxide crystals on a surface of single-crystal silicon, researchers at Missouri University of Science and Technology may have ...
Nanotechnology / Nanomaterials
Aug 11, 2009 |
5 / 5 (14) |
2
Quantum dot LEDs get brighter, more efficient
(Phys.org) -- While quantum dot-based light-emitting diodes (QLEDs) are not made of organic materials, they share many of the same advantages as organic LEDs (OLEDs). For instance, both QLEDs and OLEDs outshine ...
Nanotechnology / Nanomaterials
Apr 20, 2012 |
4.8 / 5 (14) |
11
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3-D nanocone solar cell technology cranks up efficiency
(PhysOrg.com) -- With the creation of a 3-D nanocone-based solar cell platform, a team led by Oak Ridge National Laboratory's Jun Xu has boosted the light-to-power conversion efficiency of photovoltaics by ...
Apr 29, 2011 |
4.7 / 5 (13) |
7
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How to see through opaque materials
New experiments show that it's possible to focus light through opaque materials and detect objects hidden behind them, provided you know enough about the material.
Mar 08, 2010 |
4.5 / 5 (13) |
6
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3-D system based on optical fiber could provide new options for photovoltaics
Converting sunlight to electricity might no longer mean large panels of photovoltaic cells atop flat surfaces like roofs.
Nanotechnology / Nanomaterials
Nov 02, 2009 |
4.5 / 5 (12) |
0
Zinc oxide microwires improve the performance of light-emitting diodes
Researchers have used zinc oxide microwires to significantly improve the efficiency at which gallium nitride light-emitting diodes (LED) convert electricity to ultraviolet light. The devices are believed to ...
Oct 31, 2011 |
4.6 / 5 (11) |
0
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Push-Button Logic on the Nanoscale
(PhysOrg.com) -- Circuits that can perform logic operations at the push of a button are a dime-a-dozen these days, but a breakthrough by researchers in the USA has meant they can be smaller and simpler than ...
Nanotechnology / Nanomaterials
Aug 05, 2010 |
5 / 5 (10) |
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Researchers: English ivy may give sunblock a makeover
When Mingjun Zhang was watching his son play in the yard, he was hit with a burning question: "What makes the ivy in his backyard cling to the fence so tightly?"
Nanotechnology / Bio & Medicine
Jul 19, 2010 |
4.8 / 5 (10) |
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