A team of space researchers working with data from the VLT in Chile has found via measuring the spectrum of a distant quasar by analyzing absorption lines in a galaxy in front of it, that there was no measurable change in ...
The key to creating a material that would be ideal for converting solar energy to heat is tuning the material's spectrum of absorption just right: It should absorb virtually all wavelengths of light that reach Earth's surface ...
Nanomaterials
Sep 29, 2014
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(Phys.org) —As the world's dependence on fossil fuels causes ever-increasing problems, researchers are investigating solar fuels as an alternative energy source. To make solar fuels, sunlight is converted into hydrogen ...
Two crucial tasks exist for realizing high-efficiency polymer solar cells: increasing the range of the spectral absorption of light and efficiently harvesting photo-generated excitons. In this work, Förster resonance energy ...
Nanophysics
Aug 20, 2013
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Energy consumption is growing rapidly in the 21st century, with rising energy costs and sustainability issues greatly impacting the quality of human life. Harvesting energy directly from sunlight to generate electricity using ...
Optics & Photonics
Aug 14, 2013
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It has often been said that solar cells are like artificial versions of the photosynthetic apparatuses found in plants, such as leaves, since both harvest sunlight. But nature's leaves can do something that most solar cells ...
Stanford University scientists have created the thinnest, most efficient absorber of visible light on record. The nanosize structure, thousands of times thinner than an ordinary sheet of paper, could lower the cost and improve ...
Nanomaterials
Jul 18, 2013
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Coated fabrics have been used in many applications such as agriculture, geotextiles, building and construction, medical, filtration and protective clothing. Coating of fabrics involves applying viscous liquid on the surface ...
Materials Science
Jul 5, 2013
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A researcher with the National Institute of Advanced Industrial Science and Technology (AIST) has developed a novel light-trapping structure to enhance optical absorption inside thin-film silicon solar cells. A conversion ...
Energy & Green Tech
May 15, 2013
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(Phys.org) —For some solar cells, the future may be fluorescent. Scientists at Yale have improved the ability of a promising type of solar cell to absorb light and convert it into electrical power by adding a fluorescent ...
Optics & Photonics
May 9, 2013
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