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Device Channels Heat into Light

A Rice University simulation shows an array of cavities patterned into a film of aligned carbon nanotubes. When optimized, the film absorbs thermal photons and emits light in a narrow bandwidth that can be recycled as electricity. (Credit: Chloe Doiron/Rice University)
A Rice University simulation shows an array of cavities patterned into a film of aligned carbon nanotubes. When optimized, the film absorbs thermal photons and emits light in a narrow bandwidth that can be recycled as electricity. Illustration by Chloe Doiron

Carbon nanotube films enable method to recycle waste heat. Engineers have shown how their carbon nanotube films can be used to create a device to recycle waste heat. The device could enhance solar cell output and increase the efficiency of industrial waste-heat recovery.

The ever-more-humble carbon nanotube may be just the device to make solar panels – and anything else that loses energy through heat – far more efficient.

Rice University scientists are designing arrays of aligned single-wall carbon nanotubes to channel mi...

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