What do we mean by deep versus shallow traps

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(a) What do we mean by "deep" versus "shallow" traps? Which are more harmful for semiconductor devices and why? What is an example of a deep trap in Si?

(b) Are absorption lengths of slightly above band gap photons longer in Si or GaAs? Why?

(c) Do absorption coefficients of photons increase or decrease with photon energy? Why?

Reference no: EM131348079

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