New Nanocoating Leading to Increased Efficiency for Solar Cells? reports that researchers at Rensselaer Polytechnic Institute have develped a new nanotech material that virtually eliminates the reflection of light. This could lead to much more efficient solar cells because all of the light hitting the surface of the solar cell will actually get through to the photovoltaic portion of the solar cell. The material, which actually consists of coating of silica nanotods deposited at a 45 degree angle on top of a thin film of aluminum nitride has the same refractive index (which is a measure of the reflectiveness of the material) as air at 1.05. Ordinary window glass has a refractive index of 1.45.

The article has some pictures too, so check it out at the link above.

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