Electroluminescence emission from surface acoustic wave-driven light-emitting diodes (SAWLEDs) is studied by means of time-resolved techniques. We show that the intensity of the SAW-induced electroluminescence is modulated at the SAW frequency , demonstrating electron injection into the -type region synchronous with the SAW wave fronts.
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PL spectra were obtained by excitation of a region of the mesa with a red-light laser source (653 nm).
© 2005 American Institute of Physics.
2005
American Institute of Physics
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