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由于存在位置的空隙和结构的无序、每个原子所必要的价数需要接近于完整性的局部满足,故认为共价键无定形合金是本征半导体。这里叙述一种具有某些新特征之能带模型,能够成功地解释所看到的各种重要效应。
Owing to the existence of vacancies and disordered structures, the valences necessary for each atom need to be close to the partial satisfaction of the completeness, so the covalently bonded amorphous alloy is considered to be an intrinsic semiconductor. Here's a band model with some new features that successfully explains the various important effects you see.