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Jan 10th, 2014
With laser-doping, silicon responds to IR light
New IR imaging systems could be possible now that a new method has demonstrated that silicon is more responsive to IR light when laser-doped with one of its most dangerous impurities: gold.
Detectors that are responsive to a broad range of IR light could form imaging arrays for security systems or solar cells that use a broader spectrum of the sun's energy. But efforts to develop such detectors using silicon have faced limitations — until now.
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