The maximum wavelength of light that a certain silicon photocell can detect 1.11μm1.11μm. a. What is the energy gap (in electron volts) between the valence and conduction bands for this photocell? b. Explain why pure silicon is opaque.

The maximum wavelength of light that a certain silicon photocell can detect 1.11μm1.11μm. a. What is the energy gap (in electron volts) between the valence and conduction bands for this photocell? b. Explain why pure silicon is opaque.

Physics for Scientists and Engineers with Modern Physics

10th Edition

ISBN:9781337553292

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter42: Molecules And Solids

Section: Chapter Questions

Problem 28P

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The maximum wavelength of light that a certain silicon photocell can detect 1.11μm1.11μm.
a. What is the energy gap (in electron volts) between the valence and conduction bands for this photocell?
b. Explain why pure silicon is opaque.

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