XtraStudy Header

⁞ Chemistry

General Science ➤ Chemistry ➤ 2
Question 1
Q1.  When Arsenic atoms are added to Germanium lattice, it becomes a/an:
 

Answer :  Extrinsic semiconductor


When a pentavalent (donor) impurity, like arsenic, is added to germanium, it will form covalent bonds with the germanium atoms, leaving 1 electron relatively free in the crystal structure. Pure germanium may be converted into an n-type semiconductor by “doping” it with any donor impurity having 5 valence electrons in its outer shell. Semiconductors which are doped in this manner – either with N- or P-type impurities – are referred to as extrinsic semiconductors.
⚔ DISCUSS

Comments
Comments (0)


XtraStudy
Explore
Explore
About
App Link
xtrastudy android app
Others

Earn While You Learn
FAQ

Register Now

© 2022 Company, Inc. All rights reserved.