(b) A p-n junction is an interface or a boundary between two semiconductor material types, namely the p-type and the n-type, inside a semiconductor. (i) With the aid of appropriate diagrams, illustrate the formation of a p-n junction. (ii) Explain the circumstances of the majority carriers in each type of material during the formation of the P-N junction. (iii) Describe depletion region and barrier potential.

(b) A p-n junction is an interface or a boundary between two semiconductor material types, namely the p-type and the n-type, inside a semiconductor. (i) With the aid of appropriate diagrams, illustrate the formation of a p-n junction. (ii) Explain the circumstances of the majority carriers in each type of material during the formation of the P-N junction. (iii) Describe depletion region and barrier potential.

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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Take a diode formed by the junction of two type n and p semiconductors. In the figure below is the diagram of the energy bands of these semiconductors, (remember the concept of fermi energy, and knowing that for a pure semiconductor it is in the middle). Based on the figures below, answer a) What is the possible current direction in the direction from p to n or from n to p? b) Explain why the current flow occurs only in one direction.
Problem 1. Define doping. 2. What is the difference between a pentavalent atom and a trivalent atom? 3. What are other names for the pentavalent and trivalent atoms? 4. How is an n-type semiconductor formed? 5. How is a p-type semiconductor formed? 6. What is the majority carrier in an n-type semiconductor? 7. What is the majority carrier in a p-type semiconductor? 8. Describe forward bias of a diode.
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(b) Describe the formation of an n-type extrinsic semiconductor by using a suitable example of materials.
An intrinsic semiconductor has some holes in it at room temperature. What causes these holes? Group of answer choices a.) Valence electrons b.) Thermal energy c.) Doping d.) Free electrons
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None Problem 1. Define doping. 2. What is the difference between a pentavalent atom and a trivalent atom? 3. What are other names for the pentavalent and trivalent atoms? 4. How is an n-type semiconductor formed? 5. How is a p-type semiconductor formed? 6. What is the majority carrier in an n-type semiconductor? 7. What is the majority carrier in a p-type semiconductor? 8. Describe forward bias of a diode.