Field Enhancement of Photocurrent in a-SiN0.7:H
- 1 February 1989
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 28 (2R)
- https://doi.org/10.1143/jjap.28.289
Abstract
Two kinds of centers with different barrier heights contribute to the Poole-Frenkel current in a-SiN0.7:H in a high electric field. Based on the characteristics of these centers, a field enhancement of photocurrent was expected and actually observed in the field where the Poole-Frenkel current flows in the dark. This phenomenon is due to field-assisted thermal ionization of the shallow center, which is occupied under the photoexcitation.Keywords
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