Light emitting diode as a photorefectance pump source.
DOI:
https://doi.org/10.5433/1679-0375.2008v29n1p93Keywords:
Photorefectance, Pump Source, Light-emitting diodes.Abstract
Light-emitting diodes (LEDs) with different wavelengths are used as photorefectance light pump sources. Photorefectance spectra of bulk semiconductors of GaAs and GaAs/InGaP and GaAsSbN/GaAs heterostructures prepared on GaAs substrates were investigated, using blue, green, orange and red LEDs, in comparison with spectra obtained with the use of Ar and He-Ne lasers, using a conventional technique. Results show the possibility of using LEDs as pump light sources in photorefectance measurements.
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