LED - color & fabrication | Semiconductors | Physics | Khan Academy

Really explanation is too good I don't know why this channel is underrated thanks a lot ❤❤

I love you sir ❣️❣️

What puzzles me is how you get a PN junction with a single material, that is to say, the mixture of group 13 and 15 elements. I am guessing this. That mixing groups 13 and 15 gives you both free electrons and holes, and thus a conducting material. So the result is not a diode, but a conductor in both directions. The free electrons then drop into the holes, and give off EM waves as they would at a PN junction. Anyone agree or disagree?

This is best lecture i have ever watched regarding led's

This is so nice

No words! Fantastic explanation!!

Loved the last part 🙂🔥

Superb

Very great explanation. Thank u so much sir

Great explanation

This is amazing. Thanks a lot

Can't we just put blue colour on a yellow led

I am an electrical engineer.
I can surely say that, this type of explanation i never seen.
I knew the concepts but implementation..........

Why we need blue light just use yellow led and coat it with blue,
i.e just reverse coating and led

Awsome

What elements do we use to dope gallium arsenide,gallium phosphide & gallium Nitride Into p-type & n-type semiconductors

I am from ethiopia 🙏 for sharing knowledge. አመሰግናለሁ

Very easy to understand, thanks for sharing this knowledge.

Just luved it!!!! ❤❤

Mind-blowing explanation sirr....

इतने अच्छे विवरण के लिए शुक्रिया!

You are one fantastic teacher

Sir can you please do pyq as well❤️🥺

On further increasing the current the intensity of the light reduces in led , why ?

Is the color of light from LED dependent on the nature of gas like argon / neon ? It would be great if you could reply sir . Thanks for this great video as always.

How do you mean there was no blue leds before 2014 makes no sense to me cause there were obviously.

That was cool sir

Thanks sir ☺️

But neither of them are semiconductor..

Great explanation

My question is: How the phosphor layer reflects yellow light when they are being bombarded by blue light? For eg, leaves appear green because other colored photons are absorbed by them but they reflect green. Please clarify. This is the biggest misunderstanding I have about light.

these type of channels beed tobcome on top like 10 million. Not somone playing videogames. This channel is sooooo underrated thankyou so much

Excellent

Why do the videos have no speed control these days
Can you please fix that

U r superb sir... i love uu

Tq sir

This is different from last video