Briefly describe electron and hole motions in a p-n junction for forward and reverse biases

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04-01-2017
Physics

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Briefly describe electron and hole motions in a p-n junction for forward and reverse biases

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In a forward bias, the p-type is connected to the positive side of the terminal and the n-type is connected to the negative terminal of the voltage source. The electrons in the n-type junction travels towards the holes in the p-type junction
In a reverse bias, the junctions are connected to the opposite terminals compared to the forward bias. The free electrons build up on the center creating a neutral layer that widens as voltage is increased.