What is valence bond model and the energy band model

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Reference no: EM131320707

1. What is the valence bond model? What is the energy band model?

2. If all the valence electrons in silicon are in the valence band, what is the minimum photon energy that is just enough to release an electron from silicon into vacuum?

3. What is the photon energy necessary to create an electron-hole pair in GaAs, GaP and Ge?

Reference no: EM131320707

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