Timeline for Conduction band confusion
Current License: CC BY-SA 4.0
11 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jan 29, 2020 at 20:29 | comment | added | Zizy Archer | A huge oversimplification, but perhaps useful: Imagine a single Ne atom. That one has full 1s, 2s and 2p orbitals as you know from chemistry. You can consider full 2p as valence and empty 3s as conduction band. If something kicks one electron out of 2p orbital into the 3s orbital, you will NOT have Ne+ ion yet - your atom still has all electrons. One is excited (with higher energy), but still bound to the atom. To get it ionized, you need to kick it out of all orbitals. This can happen in solids too, eg en.wikipedia.org/wiki/Photoelectric_effect, but we don't call it ionization there. | |
| Jan 29, 2020 at 18:37 | history | became hot network question | |||
| Jan 29, 2020 at 17:20 | comment | added | aditya_stack | @Sharad1 Have you read the explanation given in HCV and NCERT books? | |
| Jan 29, 2020 at 13:54 | comment | added | Sharad1 | @Aditya stack Actually I am just a class 12th student. | |
| Jan 29, 2020 at 13:39 | answer | added | Superfast Jellyfish | timeline score: 8 | |
| Jan 29, 2020 at 13:32 | comment | added | aditya_stack | Also remember that definition of ionisation energy is the energy required to release the outermost electron from a gaseous atom of the given element. For gases, we can assume that there are no interactions between atoms and so the ionisation energy is a property purely depending on the atom. By contrast in solid state the interactions between atoms become very significant, which leads to the emergence of bands in the first place. Ionisation energy is a property of individual atoms, more or less, while semiconductors, solid state etc. deals with the properties of a collection of atoms. | |
| Jan 29, 2020 at 13:28 | comment | added | aditya_stack | At what level do you want this to be explained? The current top answer by AccidentalTaylorExpansion assumes you know about dispersion relations (I don't) and I feel this is not the level at which you were seeking the answer. | |
| Jan 29, 2020 at 12:03 | answer | added | AccidentalTaylorExpansion | timeline score: 4 | |
| Jan 29, 2020 at 11:10 | review | Close votes | |||
| Jan 31, 2020 at 19:48 | |||||
| Jan 29, 2020 at 10:37 | comment | added | anna v | this link may be of help hyperphysics.phy-astr.gsu.edu/hbase/Solids/band.html | |
| Jan 29, 2020 at 10:31 | history | asked | Sharad1 | CC BY-SA 4.0 |