状态密度是将能带分为一个一个能量很小的间隔来处理，假定在能带中能量E~（E+dE）之间无限小的能量间隔内有dZ个量子态，则状态密度g（E）为g（E）=dZ/dE
还计算了电荷转移、成键情况和状态密度。
The charge transfer, the bond strengths and the density of states are also considered.
随着单位能带内的能级变少，材料的状态密度也将发生变化。
With fewer energy levels within the specific energy band, the density of states of the material changes.
观察到轻、重空穴对应的激子吸收峰（LH和HH）及台阶状态密度。
The exciton absorption resonaces (HH and LH) and step accumu-tive density Of state have been observed.
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