Timeline for In an intrinsic semiconductor, why don't electrons go out from both valence and conduction bands?
Current License: CC BY-SA 4.0
5 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Feb 28, 2020 at 18:31 | comment | added | user1850479 | Doping adds additional energy levels above the valence band, reducing the energy required to move charges. See: hyperphysics.phy-astr.gsu.edu/hbase/Solids/dsem.html#c1 | |
| Feb 28, 2020 at 17:44 | comment | added | across | I feel that forces the battery to pull the electrons directly from the valence band... | |
| Feb 28, 2020 at 17:43 | comment | added | across | My understanding is that in a p-type doped crystal there is "nothing" in the conduction band. Since the hole concentration is very high compared to the free electrons, almost all the thermally generated free electrons have already fallen into the holes and vanished.. | |
| Feb 28, 2020 at 17:40 | comment | added | across | user, I maybe wrong, but if we replaced the intrinsic crystal with a p-type doped crystal, then the battery moves the electrons directly from valence band? | |
| Feb 28, 2020 at 17:38 | history | answered | user1850479 | CC BY-SA 4.0 |