As part of a classroom demonstration, I shine a 650 nm red laser onto a block of Cadmium Sulfide attached with leads to a voltmeter to show that current will flow. a. Using information from the Optical Properties and Semiconductor lectures, explain why or why not electrical current flows through the semiconductor block with calculations, words, and (potentially) a diagram in order to determine whether I will look the fool or not. b. What type of semiconductor is the block in question 1 c. If I used a block with a few phosphorous atoms replacing some of the atoms, what type of semiconductor would this be? Would this new block be able to absorb more or less of the visible spectrum than the block of question 1?

As part of a classroom demonstration, I shine a 650 nm red laser onto a block of Cadmium Sulfide attached with leads to a voltmeter to show that current will flow. a. Using information from the Optical Properties and Semiconductor lectures, explain why or why not electrical current flows through the semiconductor block with calculations, words, and (potentially) a diagram in order to determine whether I will look the fool or not. b. What type of semiconductor is the block in question 1 c. If I used a block with a few phosphorous atoms replacing some of the atoms, what type of semiconductor would this be? Would this new block be able to absorb more or less of the visible spectrum than the block of question 1?

Modern Physics

3rd Edition

ISBN:9781111794378

Author:Raymond A. Serway, Clement J. Moses, Curt A. Moyer

Publisher:Raymond A. Serway, Clement J. Moses, Curt A. Moyer

Chapter12: The Solid State

Section: Chapter Questions

Problem 11P

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