Question

When an electron in a valence band is raised to a conduction band by sufficient light energy, semiconductors start conducting ________.

Answer 1

This band gap also allows semiconductors to convert light into electricity in photovoltaic cells and to emit light as LEDs when made into certain types of diodes. Both these processes rely on the energy absorbed or released by electrons moving between the conduction and valence bands.

Step-by-step explanation:

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