A TV remote control emits IR light. If the detector on the TV set is not to

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A TV remote control emits IR light. If the detector on the TV set is not to react to visible light, could it make use of silicon as a "window" with its energy gap Eg = 1.12eV? What is the shortest-wavelength light that can strike silicon without causing electrons to jump from the valence band to the conduction band?
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