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8 Feb 2009 15:07:09 IST
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why don't we use nitrogen for doping semiconductors??
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10 Feb 2009 08:01:15 IST
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Because carbon is not a semiconductor and size of nitrogen is very small as compared to size of silicon or germanium (remeber doped impurity must go and sit at a latice point in the crystal structure of semiconductor). Moreover it will be difficult for nitrogen to give its electron due to its high electronegativity.
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10 Feb 2009 14:19:35 IST
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if we think like this we can use almost every metal that has low en values
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