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= Show that the change in the emitted wavelength 2 with temperature T from a LED is approximately given by da hc de ik +
Posted: Sat Mar 19, 2022 6:09 pm
by answerhappygod
- Show That The Change In The Emitted Wavelength 2 With Temperature T From A Led Is Approximately Given By Da Hc De Ik 1 (52.3 KiB) Viewed 22 times
= Show that the change in the emitted wavelength 2 with temperature T from a LED is approximately given by da hc de ik + dT (Eg +{kt) dT where Eg is the band gap. Consider a GaAs LED. The band gap of GaAs at 300 K is 1.42 eV which changes (decreases) with temperature as dE,/dT = - 4.5 x 10-4 eV K-1. What is the change in the emitted wavelength if the temperature change is 10 °C?