fundamentals of solid physics

[svg]

hi friends!!


what is meant by fermi level??? i refered so my sites but i didn't get any clear idea about that...if any one knows please share with me...meaning of fermi level?? what chemical potential means?? where this fermi level used??

 

[D.A.(Tony)Stewart]

My hand waving description goes like this..

In molecular quantum physics, Fermi Levels are the same as chemical potential used in Semiconductor physics.

This graph shows a simple 2 dimensional way

the energy level of electrons that move from a valence band across a bandgap from an energy source so they can jump to a higher conduction band with free mobility.

More sources

https://www.google.ca/search?q=ferm...VA4XJrQGU_4GgBw&ved=0CD8QsAQ&biw=1144&bih=603

 

[svg]

HI....
Thanks 4 ur reply.....i refered the site mentioned below....

http://hyperphysics.phy-astr.gsu.edu/hbase/solids/fermi.html

first u just tell what is meant by chemical potential???

what i understood is...fermi level is a level which is present in between valence and conduction band for semiconductor...one more website show that,it is the upper most filled valence band....