MEASURED AND CALCULATED DISTRIBUTIONS OF DEEP DEFECT STATES IN HYDROGENATED AMORPHOUS-SILICON - VERIFICATION OF DEEP DEFECT RELAXATION DYNAMICS

被引：24

作者：

ZHONG, F

COHEN, JD

机构：

[1] Department of Physics, University of Oregon, Eugene

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 71卷 / 04期

关键词：

D O I：

10.1103/PhysRevLett.71.597

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The density of states in the upper half of the mobility gap of both intrinsic and n-type a-Si:H samples was determined by the modulated photocurrent (MPC) and junction capacitance methods. We conclude that the narrow defect band revealed by the MPC measurements reflects the distribution of relaxed D0 states, while the broader and deeper defect band obtained by capacitance measurements corresponds to relaxed D- states. Both distributions are correctly predicted by a calculation that takes into account the relaxation dynamics of deep defects in these different charge states.

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页码：597 / 600

页数：4

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