4. A GAAIAS LED with an active region width of 1.5 µm operates at 300K at a current density of 120A/cm?. Assuming that the steady state electron density is n=10'7 cm³ calculate the carrier lifetime. Also calculate the optical 3-dB cut-off frequency

4. A GAAIAS LED with an active region width of 1.5 µm operates at 300K at a current density of 120A/cm?. Assuming that the steady state electron density is n=10'7 cm³ calculate the carrier lifetime. Also calculate the optical 3-dB cut-off frequency

Physics for Scientists and Engineers with Modern Physics

10th Edition

ISBN:9781337553292

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter42: Molecules And Solids

Section: Chapter Questions

Problem 28P

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4. A GAAIAS LED with an active region width of 1.5 µm operates at 300K at
a current density of 120A/cm?. Assuming that the steady state electron
density is n=1017 cm³ calculate the carrier lifetime. Also calculate the optical
3-dB cut-off frequency

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