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23 Nov 2019
Pure silicon at room temperature has an electron number density ofabout 5 x 1015 m-3 and an equal density of holes in the valenceband. Suppose that one of every 106 silicon atoms is replaced by aphosphorus atom. (a) What charge carrier number density will thephosphorus add (in terms of nm-3)? (b) What is the ratio of thecharge carrier number density (electrons in the conduction band andholes in the valence band) in the doped silicon to that in puresilicon? The density of silicon is 2.33 g/cm3 and its molar mass is28.086 g/mol
Pure silicon at room temperature has an electron number density ofabout 5 x 1015 m-3 and an equal density of holes in the valenceband. Suppose that one of every 106 silicon atoms is replaced by aphosphorus atom. (a) What charge carrier number density will thephosphorus add (in terms of nm-3)? (b) What is the ratio of thecharge carrier number density (electrons in the conduction band andholes in the valence band) in the doped silicon to that in puresilicon? The density of silicon is 2.33 g/cm3 and its molar mass is28.086 g/mol
Tod ThielLv2
19 May 2019
