Comprhensive Study of P-N Junction

Powerful Essays
Topics: Semiconductor
Dept. of Electrical and Electronic Engineering
Course no.: EEE 2103
Name of the Paper:
“COMPREHENSIVE STUDY OF P-N JUNCTION”
Submitted to:
Mr. Md. Ziaur Rahman
Submitted by:
Shafa Al Shahid
(11.01.05.090)
Abdullah al Rumi
(11.01.05.091)
Md. Shadman Khan (11.01.05.092)
Reaz Ahmed (11.01.05.093)
Saidur Rahman Mishu (11.01.05.094)
Date of submission: 28.06.2012

Comprehensive Study On P-N Junction Diode
Shafa Al Shahid , Abdullah al Rumi, Md. Shadman Khan, Reaz Ahmed,
Saidur Rahman Mishu
Depertment Of EEE, Ahsanullah University Of Science & Technology, Dhaka, Bangladesh.
E-mail of corresponding author: khanshadman41@yahoo.com, the.reazahmed@gmail.com.

Abstract: This paper entitled as “Comprehensive study of p-n junction” includes the following topics – What is semiconductor, Band diagram of semiconductor, Fermi energy level in semiconductors, Intrinsic and Extrinsic Materials, Doping, P-type and N-type semiconductors, Donor acceptor, Majority and Minority carrier, Mobility and Conductivity, Drift and Diffusion current, Ideal p-n junction current.

Introduction:
In the field of electronics, Semiconductor devices are of great importance. In the racing world electronics is the key element of development. And in semiconductor physics, PN junction is way more important than anything else. The comprehensive study of PN junction is given below. 1.Semiconductor :

A semi-conductor is a solid whose electrical conductivity is in between that of a conductor and that of an insulator,and can be controls over a wide range, either permanently or dynamically by changing –

1. Temperature
2. Optical excitations
3. Adding impurity contents

BASIC CHARACTERISTICS OF SEMI-CONDUCTORS :

#A semi-conductor is neither a good insulator nor a good conductor of electric current.
#Solid semiconductors can exist in the crystalline or amorphous form.
#Semi-conductors can crystallize in the diamond,zinc blande or other structures.
#The



References: Semiconductor Physics and Devices by Donald A. Neaman Electronics Devices and Circuits by David A.Bell Solid State Electronic Devices by Ben.G. Streetman.

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