Products
Rewards 
from HOLOOLY

We are determined to provide the latest solutions related to all subjects FREE of charge!

Please sign up to our reward program to support us in return and take advantage of the incredible listed offers.

Enjoy Limited offers, deals & Discounts by signing up to Holooly Rewards Program

HOLOOLY 
BUSINESS MANAGER

Advertise your business, and reach millions of students around the world.

HOLOOLY 
TABLES

All the data tables that you may search for.

HOLOOLY 
ARABIA

For Arabic Users, find a teacher/tutor in your City or country in the Middle East.

HOLOOLY 
TEXTBOOKS

Find the Source, Textbook, Solution Manual that you are looking for in 1 click.

HOLOOLY 
HELP DESK

Need Help? We got you covered.

Chapter 11

Q. 11.2

What kind (p-type or n-type) of semiconductor is made if pure silicon is doped with a small amount of (a) gallium; (b) antimony?

Step-by-Step

Verified Solution

(a) Silicon has four electrons in its outer shell \left(3 s^{2} 3 p^{2}\right), but gallium has three \left(4 s^{2} 4 p^{1}\right). With this electron deficiency, silicon doped with gallium should be a p-type semiconductor. (b) Now silicon is being doped with antimony, which has an outer shell 5 s^{2} 5 p^{3}. There is an extra electron, making this an n-type semiconductor.