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Volume 7 Issue 3
May  1985
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Li Xiqiang, Sun Bingyu. INVESTIGATION OF PROBLEMS ABOUT THE LIGHT POWER OUTPUT OF GaAs/GaAlAs DH SURFACE EMITTING DIODES[J]. Journal of Electronics & Information Technology, 1985, 7(3): 220-226.
Citation: Li Xiqiang, Sun Bingyu. INVESTIGATION OF PROBLEMS ABOUT THE LIGHT POWER OUTPUT OF GaAs/GaAlAs DH SURFACE EMITTING DIODES[J]. Journal of Electronics & Information Technology, 1985, 7(3): 220-226.

INVESTIGATION OF PROBLEMS ABOUT THE LIGHT POWER OUTPUT OF GaAs/GaAlAs DH SURFACE EMITTING DIODES

  • Received Date: 1983-08-16
  • Rev Recd Date: 1984-09-17
  • Publish Date: 1985-05-19
  • A modified conventional RF sputtering equipment was used in preparing the Al2O3 antireflectrve coating (ARC). An increase in the light power output of 30-66% at a driving current 200 mA for the GaAs/GaAlAs DH LEDs coated on light emitting surface with ARC thickness of about /4 has been obtained. In the same case a light output increase of less than 30% for these degraded LEDs has been determined. It may probably be attributed to the defects formed in the bulk of the Ga1-xAlxAs crystals caused by degradation of diodes restrict the increase of light output.
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