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Extrinsic Semiconductor
Chapter Name : Semiconductor Electronics: Materials, Devices And Simple Circuits
Sub Topic Code : 101_12_14_04_03
Topic Name : Extrinsic Semiconductor
Sub Topic Name : P-Type Semiconductor
Introduction

Electronic components that exploit the electronic properties of semiconductor materials, principally silicon, germanium, and gallium arsenide, as well as organic semiconductors.

Pre-Requisites:

Semiconductor

Activity:

Silicon (Si) is the most widely used material in semiconductor devices.

Real Life Question:

What is N-type Semiconductor?

Key Words / FlashCards
Key Words Definitions (pref. in our own words)
p-type semiconductors. Semiconductors doped in this way are termed p-type semiconductors.
Learning aids / Gadgets
Gadgets How it can be used
microprocessors All transistor types can be used as the building blocks of logic gates, which are fundamental in the design of digital circuits. Transistors act as on-off switches; in the MOSFET, for instance, the voltage applied to the gate determines whether the switch is on or off.
Real life uses :

Building circuits.

Places to visit :

Digital circuits.

Practical examples around us
Examples Explainations
Solar cell Electrical device that converts the energy of light directly into electricity by the photovoltaic effect.
What you learn in Theory:

The majority charge carriers are positive holes.

What you learn in Practice:

Electron-accepting levels just above the top of the valence band, causes more holes to be introduced into the valence band.

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