Timeline for What happens when we add free electrons to an insulator?
Current License: CC BY-SA 4.0
10 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jul 1, 2018 at 23:46 | history | tweeted | twitter.com/StackPhysics/status/1013569625924276224 | ||
| Jun 27, 2018 at 16:09 | comment | added | Jon Custer | In a solid, the electrons occupy Bloch states which extend throughout the solid. You have to look at it from a solid state physics perspective, not a chemistry perspective. | |
| Jun 27, 2018 at 15:44 | comment | added | Surzilla | @JonCuster Is it correct to say that there are no "gaps" between the atomic/molecular orbitals through which the electrons can travel? Do these orbitals fill all space in the insulator? | |
| Jun 27, 2018 at 15:41 | vote | accept | Surzilla | ||
| Jun 27, 2018 at 15:39 | comment | added | Surzilla | @BySymmetry I learned that a cupper-zinc voltaic cell creates an electric field exactly because the zinc loses electrons quicker than cupper, and transfers those to cupper through the wire connecting them. Is this wrong? | |
| Jun 27, 2018 at 13:50 | answer | added | Bob Jacobsen | timeline score: 7 | |
| Jun 27, 2018 at 13:30 | comment | added | By Symmetry | A battery does not provide (a meaningful number of) free electrons. A battery provides a voltage which causes free electrons already present in the wire to move. | |
| Jun 27, 2018 at 12:49 | comment | added | Jon Custer | The electrons don't care where they came from. To pass through the insulator they have to deal with the band structure of the insulator. If the conduction band is out of reach, well, they aren't going anywhere. | |
| Jun 27, 2018 at 12:40 | review | First posts | |||
| Jun 27, 2018 at 13:10 | |||||
| Jun 27, 2018 at 12:37 | history | asked | Surzilla | CC BY-SA 4.0 |