Donor States in Hydrogenated Amorphous Silicon and Germanium
- 22 April 1985
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 54 (16), 1836-1839
- https://doi.org/10.1103/physrevlett.54.1836
Abstract
We report the first direct observation of phosphorus and arsenic donor states in hydrogenated amorphous silicon and germanium by electron-spin resonance. The states are identified via their characteristic hyperfine structure, and are attributed to neutral donors. A comparison with crystalline silicon and germanium shows that the disorder potential of the amorphous phase leads to a stronger localization and a wide distribution of donor states.Keywords
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