a) An extrinsic semiconductor may contain both donor and acceptor atoms and their related donor and acceptor levels, respectively, in its energy band diagram. Co doping of suitable dopants in Gallium arsenide (GaAs), which has a band gap, E, of 1.42 ev, can produce a donor level around 0.02 ev below the conduction band as well as an acceptor level of around 0.01 eV above the valence band. If an electron at the donor level goes down to an empty acceptor level, calculate the wavelength of the photon emitted (in nm). Sketch a simple energy band diagram to illustrate the transition (Given: Plank's constant 4.13567 x10eV.a and hos 1240 eV.nm)

a) An extrinsic semiconductor may contain both donor and acceptor atoms and their related donor and acceptor levels, respectively, in its energy band diagram. Co doping of suitable dopants in Gallium arsenide (GaAs), which has a band gap, E, of 1.42 ev, can produce a donor level around 0.02 ev below the conduction band as well as an acceptor level of around 0.01 eV above the valence band. If an electron at the donor level goes down to an empty acceptor level, calculate the wavelength of the photon emitted (in nm). Sketch a simple energy band diagram to illustrate the transition (Given: Plank's constant 4.13567 x10eV.a and hos 1240 eV.nm)

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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