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"Voltage drop" is an imprecise value, because the voltage drop for a single LED is not exact but ranges depending on how much current (and hence much light you want to produce) and because the " knee" of any diode curve is smooth and not an exact voltage. However, the bandgap of the material in eV is an exact value. "Voltage drop" is still useful to think of when making circuits, so I'll leave that column for each color, but I was thinking of adding a bandgap value for each material. And I would probably also have the wavelenghs be for each specific material rather than a broad range. And I would sort the materials for each color in order of increasing bandgap (and decreasing wavelength). Em3rgent0rdr ( talk) 16:52, 20 June 2024 (UTC)
An I-V plot of LEDs of various colors (from http://lednique.com/current-voltage-relationships/iv-curves/) would be nice, as seeing the curve helps understanding more than just giving a "voltage drop" range of particular LED color. If I can't find any a freely-licensed plot on the internet, then if I have time I could make some measurements with the LEDs and make a freely licensed plot. Em3rgent0rdr ( talk) 19:16, 20 June 2024 (UTC)
This is the
talk page for discussing improvements to the
Light-emitting diode physics article. This is not a forum for general discussion of the article's subject. |
Article policies
|
Find sources: Google ( books · news · scholar · free images · WP refs) · FENS · JSTOR · TWL |
This article is rated C-class on Wikipedia's
content assessment scale. It is of interest to the following WikiProjects: | |||||||||||||||||||||
|
"Voltage drop" is an imprecise value, because the voltage drop for a single LED is not exact but ranges depending on how much current (and hence much light you want to produce) and because the " knee" of any diode curve is smooth and not an exact voltage. However, the bandgap of the material in eV is an exact value. "Voltage drop" is still useful to think of when making circuits, so I'll leave that column for each color, but I was thinking of adding a bandgap value for each material. And I would probably also have the wavelenghs be for each specific material rather than a broad range. And I would sort the materials for each color in order of increasing bandgap (and decreasing wavelength). Em3rgent0rdr ( talk) 16:52, 20 June 2024 (UTC)
An I-V plot of LEDs of various colors (from http://lednique.com/current-voltage-relationships/iv-curves/) would be nice, as seeing the curve helps understanding more than just giving a "voltage drop" range of particular LED color. If I can't find any a freely-licensed plot on the internet, then if I have time I could make some measurements with the LEDs and make a freely licensed plot. Em3rgent0rdr ( talk) 19:16, 20 June 2024 (UTC)