Draw the energy band diagrams of p-type and n-type semiconductors. A semiconductor has equal electron and hole concentration 6 x 10 8 m –3 . On doping with a certain impurity, electron concentration increases to 8 x 10 12 m –3 . Identify the type of semiconductor after doping. - Wired Faculty

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Draw the energy band diagrams of p-type and n-type semiconductors.
A semiconductor has equal electron and hole concentration 6 x 10⁸ m^–3. On doping with a certain impurity, electron concentration increases to 8 x 10¹² m^–3. Identify the type of semiconductor after doping.

Solution

Energy band for p-type and n-type semiconductor is as shown below:

Since, the electron concentration increases on doping, so the resulting semiconductor is of n-type.

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Wave Optics

Draw the energy band diagrams of p-type and n-type semiconductors.
A semiconductor has equal electron and hole concentration 6 x 10⁸ m^–3. On doping with a certain impurity, electron concentration increases to 8 x 10¹² m^–3. Identify the type of semiconductor after doping.

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Draw the energy band diagrams of p-type and n-type semiconductors.A semiconductor has equal electron and hole concentration 6 x 108 m–3. On doping with a certain impurity, electron concentration increases to 8 x 1012 m–3. Identify the type of semiconductor after doping.

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Draw the energy band diagrams of p-type and n-type semiconductors.
A semiconductor has equal electron and hole concentration 6 x 10⁸ m^–3. On doping with a certain impurity, electron concentration increases to 8 x 10¹² m^–3. Identify the type of semiconductor after doping.