News tagged with photovoltaic material
Tighter 'stitching' makes better graphene
(Phys.org) -- Similar to how tighter stiches make for a better quality quilt, the "stitching" between individual crystals of graphene affects how well these carbon monolayers conduct electricity and retain ...
Nanotechnology / Nanomaterials
Jun 01, 2012 |
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Scientists discover bilayer structure in efficient solar material
Detailed studies of one of the best-performing organic photovoltaic materials reveal an unusual bilayer lamellar structure that may help explain the material's superior performance at converting sunlight to electricity and ...
Apr 24, 2012 |
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Development of a new method for the boron-doping of two dimensional carbon materials
Kyoto University researchers have developed a new method for the boron-doping of two dimensional carbon materials, which is expected to be a promising approach towards the development of highly efficient electron ...
Nanotechnology / Nanomaterials
Mar 22, 2012 |
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Physicists demonstrate quantum plasmons in atomic-scale nanoparticles
Addressing a half-century-old question, engineers at Stanford have conclusively determined how collective electron oscillations, called plasmons, behave in individual metal particles as small as just a few nanometers in diameter. ...
Mar 21, 2012 |
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Scientists use LCLS to see photovoltaic process in action
(PhysOrg.com) -- A surprising atomic-scale wiggle underlies the way a special class of materials reacts to light, according to research that may lead to new devices for harvesting solar energy.
Feb 29, 2012 |
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Tandem polymer solar cells that set record for energy-conversion
(PhysOrg.com) -- In the effort to convert sunlight into electricity, photovoltaic solar cells that use conductive organic polymers for light absorption and conversion have shown great potential. Organic polymers ...
Feb 13, 2012 |
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Researchers uncover transparency limits on transparent conducting oxides
Researchers in the Computational Materials Group at the University of California, Santa Barbara (UCSB) have uncovered the fundamental limits on optical transparency in the class of materials known as transparent ...
Jan 18, 2012 |
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Affordable solar: It's closer than you think
It's time to stop thinking of solar energy as a boutique source of power, says Joshua Pearce.
Technology / Energy & Green Tech
Dec 01, 2011 |
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Engineers solve energy puzzle
University of Toronto materials science and engineering (MSE) researchers have demonstrated for the first time the key mechanism behind how energy levels align in a critical group of advanced materials. This discovery is ...
Nanotechnology / Nanomaterials
Nov 06, 2011 |
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An electronic bucket brigade could boost solar cell voltages
If solar cells could generate higher voltages when sunlight falls on them, they'd produce more electrical power more efficiently. For over half a century scientists have known that ferroelectrics, materials ...
Sep 15, 2011 |
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One-pot synthesis provides simpler, faster route to highly efficient solar cells
Preventing the recombination of free charges produced when light strikes a solar cell is one of the main goal of engineers attempting to extract the maximum energy conversion efficiency from their devices. One way to achieve ...
Nanotechnology / Nanomaterials
Aug 19, 2011 |
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Researchers observe nanoscale charge transport in bulk heterojunction solar cells
(PhysOrg.com) -- Researchers in the CNST have used photoconductive atomic force microscopy (PCAFM) to characterize the nanoscale structure of organic photovoltaic (OPV) materials, and have performed a careful assessment of ...
Aug 11, 2011 |
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Polymer scientist is laying groundwork for next-generation flexible photovoltaics
University of Massachusetts Amherst polymer scientist Ryan Hayward recently received a five-year, $750,000 grant from the U.S. Department of Energy to improve understanding of the fundamentals for the next generation of lightweight ...
Jul 12, 2011 |
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Quantum dots with built-in charge boost solar cell efficiency by 50%
(PhysOrg.com) -- For the past few years, researchers have been using quantum dots to increase the light absorption and overall efficiency of solar cells. Now, researchers have taken a step further, demonstrating ...
May 13, 2011 |
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Cheap, abundant cathode material found for producing hydrogen fuel (w/ video)
(PhysOrg.com) -- By replacing catalysts made of expensive noble metals like platinum with cheaper, earth-abundant materials, researchers have taken a step toward enabling the large-scale production of hydrogen ...
May 10, 2011 |
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