下述说法中,正确的是 ( ) -题库考试答案搜索网

下述说法中,正确的是 ( )

单选题

2021-09-02 13:27

A、本征半导体是电子与空穴两种载流子同时参予导电,而杂质半导体(n型或p型)只有一种载流子(电子或空穴)参予导电,
B、n型半导体的导电性能优于p型半导体,因为n型半导体是负电子导电,p型半导体是正离子导电.
C、n型半导体中杂质原子所形成的局部能级靠近空带(导带)的底部,使局部能级中多余的电子容易被激发跃迁到空带中去,大大提高了半导体导电性能.
D、p型半导体的导电机构完全决定于满带中空穴的运动.

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正确答案

C

试题解析

标签：文鼎教育乐山师范学院大学物理

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