J.H. Kaufman, Owen R. Melroy, et al.
Synthetic Metals
Paper
Persistent photo-conductance and photoquenching of selectively doped Al0.3Ga0.7As GaAs/heterojunctions
Abstract
The dependence on photon energy of the persistent photoconductivity (PPC) in selectively doped high mobility Al0.3Ga0.7As-GaAs heterostructures has been measured at temperatures below 80 K. A decrease in conductivity due to light exposure at one wavelength after exposure to light at another wavelength - photo-quenching - is also found. It is concluded that deep centers in GaAs and AlGaAs other than the DX center in AlGaAs are mainly responsible for PPC. © 1983 AIME.
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