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1) For an abrupt p-n junction in thermal equilibrium: a) Plot a graph showing the variation...

1) For an abrupt p-n junction in thermal equilibrium: a) Plot a graph showing the variation of the contact potential as a function of doping. b) Plot a graph showing the variation of the contact potential as a function of temperature. c)Plot a graph showing the variation of the electric potential as a function of doping. d)Plot of a graph showing the variation of the electric field as a function of doping.

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b) Higher the temperature, greater will be the mobility of charge carriers and lower potential difference across the junction can break the potential barrier. But as the temperature lowers, kinetic energy of charge carriers decreases and higher will be the value of potential barrier.

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