Semiconductors, specifically "n" type semiconductors, are not electrically charged despite containing excess electrons. The doping process involves introducing neutral atoms, such as phosphorus, which contribute additional electrons to the conduction band without altering the overall charge of the semiconductor. The positive charge of the phosphorus nucleus balances the negative charge of the excess electrons, resulting in a neutral material. Therefore, while "n" type semiconductors have more electrons, they remain electrically neutral.
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suku said:are semiconductors charged? i mean '"n" type contains excess of electrons, so they should be charged...
please tell me where i am wrong
tks for any answer...