hw8solutions1104

hw8solutions1104 - EECE 7201, Homework #8 Solutions, 4/11...

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EECE 7201, Homework #8 Solutions, 4/11 1. 2. b. α =1.8x10 3 , e - α x =0.1, x=12.8 μ m, e - α x =0.01, x=25.6 μ m c. α =5x10 3 , e - α x =0.1, x=4.6 μ m For Si, the light is absorbed less strongly, even though the bandgap is smaller (indirect gap). 3.
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4. 11.8, text: Ge (smaller bandgap). 5. 11.9, text: photon energy=1.24/ λ =2.48 eV.
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hw8solutions1104 - EECE 7201, Homework #8 Solutions, 4/11...

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