In the presence of impurities or in a nonstoichiometric solid, free electrons or electron holes are produced as a result of “charge compensation” to neutralize the effect of charged ionic defects 。
在杂质存在情况下,或在非化学计量比
固体中,为了中和带
离子缺陷所引起
不平衡,
会产生
子或
子空穴。