Engineering, 10.12.2019 06:31 giulianna41
Calculate the emission spectrum of a gaas led with bandgap energy equal to 1.4 ev at 350k, assume the emission spectrum is given by n(e)=g(e)*f(e), with g(e)=(e-ec)^(1/2), f(e)=-e)/kt). then assuming the density states, fermi distribution and electron concentration are normalized so that the absolute amplitude value of it is not important. we are only interested in the shape of the spectrum. its absolute magnitude is not needed. (a) plot the density of states g(e) versus energy (ev) for wavelength ranged from 0.8um to 1.0 um (b) plot the distribution f(e) versus energy (ev) for wavelength ranged from 0.8um to 1.0 um (c) plot the electron concentration n(e) versus energy (ev) for wavelength ranged from 0.8um to 1.0 um (d) calculate the full-width-at-half-max linewidth (e) estimate the emission peak wavelength (in microns) and frequency (in thz)
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Calculate the emission spectrum of a gaas led with bandgap energy equal to 1.4 ev at 350k, assume th...
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