Abstract
The theoretical modelling of the temperature-dependent metastable dangling- bond density in undoped hydrogenated amorphous silicon (a-Si: H) is critically reviewed. It is shown that thermal broadening of the band tails provides the main contribution to the observed increase in the deep-defect density in a-Si: H with increasing temperature. The possible structural origins of this phenomenon are briefly discussed.
Original language | English |
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Pages (from-to) | 147-150 |
Number of pages | 4 |
Journal | Philosophical Magazine Letters |
Volume | 66 |
Issue number | 3 |
DOIs | |
State | Published - 1992 |
Externally published | Yes |