(Phys.org) -- A team of researchers in Australia has shown that the evolution of flowers in that country was driven by the preferences of bees, rather than the other way around. In their paper published in the Proceedings ...
Scientists study the movement of charge carriers to design an organic LED that is energy efficient and still casts a warm, natural glow.
General Physics
Feb 1, 2012
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(PhysOrg.com) -- Finally, an optical frequency comb that visibly lives up to its name. Scientists at the University of Konstanz in Germany and the National Institute of Standards and Technology in the U.S. have built the ...
General Physics
Oct 29, 2009
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(PhysOrg.com) -- Monochromatic light-emitting diodes cover a large part of the visible spectrum with high effi-ciency. For blue light, nitride diodes achieve external quantum efficiencies in excess of 65%, i. e., one photon ...
Condensed Matter
Jul 23, 2009
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Sharp Corporation has developed a five-primary-color display that faithfully reproduces the real surface colors that humans are capable of perceiving. A prototype of this display will be exhibited at the international symposium ...
Hardware
May 29, 2009
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