Transient decay of persistent photoconductivity in Al0.3Ga0.7As
- 15 July 1990
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 68 (2), 601-605
- https://doi.org/10.1063/1.346785
Abstract
Transient decay of persistent photoconductivity (TDPPC) measurements were performed and analyzed in terms of models in which the TDPPC is associated with thermally activated electron capture into DX and a modification of the ionized impurity density, and hence the mobility, concomitant with electron capture. Quantitative agreement between theory and experiment was possible when Chadi and Chang’s model for DX [Phys. Rev. Lett. 61, 873 (1988); Phys. Rev. B 39, 10063 (1989)] was employed in conjunction with a photo-induced shallow donor.Keywords
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