Timeline for Intuitive explanation: how does a LED work?
Current License: CC BY-SA 3.0
14 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Feb 19, 2021 at 18:00 | comment | added | user137289 | Wie's semiconductor applets gave intuitive understanding jas.eng.buffalo.edu/education/pn/biasedPN/index.html But it is almost impossible now to run java applets. Does anyone know of something similar in html5? | |
| Feb 19, 2021 at 17:49 | history | edited | Qmechanic♦ |
edited tags
|
|
| Feb 19, 2021 at 17:00 | answer | added | CR Drost | timeline score: 3 | |
| Feb 19, 2021 at 15:41 | answer | added | Filippo | timeline score: 1 | |
| Mar 12, 2018 at 7:36 | comment | added | Ste_95 | I have always been told that current is a flow of electrons. I was never told that there is also a flow of holes in the other direction. Is this peculiar to LEDs? Can you elaborate and explain? One line comments are not explanations, if the recipient doesn't already know the answer... | |
| Mar 6, 2018 at 14:51 | comment | added | Jon Custer | But holes are flowing into the diode from one side, and electrons from the other. There is no limit to getting more holes (or more electrons). | |
| Mar 6, 2018 at 11:52 | comment | added | Ste_95 | Please read the last paragraph of my question: When an electron meets a hole ... , it should stay there, I guess. So it should come a time when all holes are filled up and there's nowhere for the electrons to go. Instead, there must be something that empties the holes for new electrons to come. How does this happen? | |
| Mar 6, 2018 at 9:14 | comment | added | Alchimista | See John Custer comment. It is a flow. Moreover you can take neutral pristine material and inject electrons and hole in it, see Organic LEDs. | |
| Mar 6, 2018 at 8:12 | comment | added | Ste_95 | @Alchimista Maybe elaborate some more..? | |
| Mar 6, 2018 at 8:12 | comment | added | Ste_95 | @JonCuster I see your point, but I feel like I have made clear what my level is. I am not a physicist, so I don't know what a diode is neither how it works. That's why I have asked for an intuitive (maybe analogy based) explanation, that doesn't already supposes I know the topic. | |
| Mar 5, 2018 at 14:59 | comment | added | Jon Custer | Pet peeve of mine - intuition is not consistent from person to person, so what is intuitive to you may not be at all intuitive to me. Now, for your question, electrons come in one side, holes come in the other and they recombine in the middle. Just like in any other diode. | |
| Mar 5, 2018 at 14:33 | comment | added | Alchimista | Because you have a current. Basically you ask for why a (doped)semiconductor conducts.... | |
| Mar 5, 2018 at 9:38 | review | First posts | |||
| Mar 5, 2018 at 9:57 | |||||
| Mar 5, 2018 at 9:37 | history | asked | Ste_95 | CC BY-SA 3.0 |