LED's ~ "Under The Microscope"
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- čas přidán 28. 04. 2014
- A very nice video showing the internal structures of an LED using a microscope, as well as an explanation of how LED's work, and how different color LED's are created. If you have any questions or comments, please feel free to post them in the comment section below the video. I try my best to answer all questions in a timely manner.
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Very cool! And so very helpful to really see what is going on rather then just learning from an explanation or an animation! This needs more views! Wish i saw this vid a year ago, thankyou mr microscope dude for your time and effort in making this!
Good work and detailed explanation.
Glad you enjoyed the video! Be sure to look over my extensive video playlists for other great videos of interest to you and share. Thanks
Just subscribed, holy crap this channel is a gold mine
same, he just answered my question.
Very well done.
Thanks Mike
Great informative vid! What is the make & model of your microscope?
Looking through the microscope is way better than how the video came out. The microscope is an Amscope b120e. Up to 2000x magnification. You can get one for a couple hundred. Excellent quality optics for the money.
Thanks For Watching!
Be sure to check out my video playlists as well.
Well, the video came out pretty well, imo.
Thanks for the response & uscope info!
Your Welcome :-)
Very nice video and explanations.
At some point you say that depending on the semiconductor material, the emitted light will be infrared or other colors, like blue or white.
This is not exactly true.
LED light is always monochromatic, due to the energy barrier you talk about - it's always a single wavelength. White light will never be emitted *directly* from a single semiconductor structure.
99.9% white LEDs are in fact *blue* or UV LEDs with a phosphor that you show in your video.
The remaining ones have 3 LED structures in one package (Red Green and Blue) and together emit a mixture of those RGB wavelengths, which we perceive as white light.
The semiconductor doping and the energy released by the electron is what determines the color. Now you are right about mixing colors to get white light.
I re-read my comment and indeed it may not be clear. I'm opposing only inclusion of white in the list of LED colors depending on the semiconductor composition. I'm from Poland and English isn't my native language...
In my collection I have many different LEDs which emit IR, various shades of red, yellow, amber, green (from deep bottle green to turquoise), blue (from deep blue to violet-ish) and UV. Of course, there are multi-chip LEDs: RG, GY, RB, RGB and even RGBW with additional white (ie additional blue covered with phosphor, or, more accurately: luminophore)..
Haven't seen a GB LED though :)
Laser light under microscope