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Reflectivity Reaches a New Low

sporkme writes "A new nanocoating material developed by a team of researchers from Rensselaer Polytechnic Institute has the lowest level of reflectivity ever seen ... or not seen in this case. The amount of light reflected by the composite of silica nanorods and aluminum nitride is almost the same amount reflected by air. From the article: 'Schubert and his coworkers have created a material with a refractive index of 1.05, which is extremely close to the refractive index of air and the lowest ever reported. Window glass, for comparison, has a refractive index of about 1.45. Using a technique called oblique angle deposition, the researchers deposited silica nanorods at an angle of precisely 45 degrees on top of a thin film of aluminum nitride, which is a semiconducting material used in advanced light-emitting diodes (LEDs). From the side, the films look much like the cross section of a piece of lawn turf with the blades slightly flattened.' Suggested applications include increased efficiency in solar cells, more energy-efficient lighting and advances in quantum mechanics."

2 of 166 comments (clear)

  1. Precisely 45 degrees by DrSkwid · · Score: 0, Offtopic

    How is that different from 45 degrees ?

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    There are places where the networks are not touching,and there are places where they are-Boeing's Lori Gunter
  2. My God, it's full of stars! by Srdjant · · Score: 0, Offtopic

    We can use this to make machines that have proportions of 1 by 4 by 9.