Let {n_h} and {n_e} be the number of holes an | vedclass

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(C) In an intrinsic semiconductor,the material is pure and contains no dopants. Thermal energy at room temperature causes some valence electrons to br

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${n_h} = {n_e}$ in an intrinsic semiconductor

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(C) In an intrinsic semiconductor,the material is pure and contains no dopants. Thermal energy at room temperature causes some valence electrons to break their covalent bonds and move to the conduction band,leaving behind a vacancy known as a hole. Since each electron-hole pair is generated simultaneously,the number of free electrons $({n_e})$ must be equal to the number of holes $({n_h})$. Therefore,${n_e} = {n_h}$ in an intrinsic semiconductor.

Let ${n_h}$ and ${n_e}$ be the number of holes and conduction electrons respectively in a semiconductor. Then

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