How to make a 'perfect' solar absorber

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Researchers have developed a solar cell that can tap the sun's full radiation spectrum. The material is a two-dimensional metallic dielectric photonic crystal, and has the additional benefits of absorbing sunlight from a wide range of angles and withstanding extremely high temperatures. Perhaps most importantly, the material can also be made cheaply at large scales.

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inetdog

Re: How to make a 'perfect' solar absorber

Solar ThermoPhotoVoltaic!
An interesting concept. Among the points that may make application of the technology difficult is that the surface has to get hot enough to emit a large amount of light (probably infrared) which is then fed to a PV cell component. Not our backyard panel temperature, I think.