- #1
CoolDude420
- 201
- 9
I'm taking a module in solid state electronics and I'm a bit confused with the energy band diagrams. I was told that the region between the top of VB and and the bottom of the CB is the "forbidden gap". However after learning about N-type semiconductors(silicon), I see that the extra electron from the donor atoms have their own energy level right below the bottom of the conduction band in the so called "forbidden gap". How can this be? I'm quite new to solid state and all of its terminology so any help is appreciated.
Heres a pic: [cant post pic]. its the first one on this page
http://hyperphysics.phy-astr.gsu.edu/hbase/solids/dsem.html#c2
Heres a pic: [cant post pic]. its the first one on this page
http://hyperphysics.phy-astr.gsu.edu/hbase/solids/dsem.html#c2