Blue 0603 LED under microscope

[randacnam]

Actually, the color is dictated by the dopants added to the raw semiconductor. For superbright LEDs, InGaN (indium gallium nitride) is used for purple to yellow and AlInGaP (aluminum indium gallium phosphide) is used for yellow to red. Indicator (dim) LEDs use things like GaAs (gallium arsenide). Also, 'white' LEDs are really blue dies coated with with Ce:YAG (cerium doped yttrium aluminum garnet) phosphor.

[mrkleen]

Interesting, though I've always hated soldering these. It's cool to see them up close from an operational perspective versus at the end of a hot iron.

[stcheeve]

Are you doing this in the middle of an highway?!

[maxovitsj]

Cool! I wanna see more stuff like this :3
Random little household electronics etc :D

Also, cool to see stuff actually happening when its heating up :)

[Polite_Cat]

i think its neat how small the actual part that lights up is. most of the LED, which is tiny as it is, is just the plastic casing. i would have liked to see you blow out an LED that doesnt burn out right away :) ..some LEDs sizzle for a little while before burning out. i wonder if you can fiddle with varying voltage/amperage levels to get the best effect. maybe high voltage, low amps? i remember i used to be able to make yellow LEDs sizzle for a while. also id like to see one of those RGB ones

[Afrotechmods]

@gzaloprgm I actually turned an LED green->yellow-> red yesterday.

[RandyOnTheRadio]

At the end... did it burn out ?? or did you kill the power ??

[Gzalo]

Cool! If you pass more current to yellow leds they become green :P (or was it the otherway? can't remember)

[jik]

LEDs contain a piece of certain kind of cristal which lights with electricity.

Each cristal produces a different color =D Yellow, blue, cyan, red, green, white, ...

[maxovitsj]

@Afrotechmods Well, I don't know what you have laying around :P

[moistpope]

@Afrotechmods How about an open microchip (showing the silicon wafer board) getting fried with 50v?

[joshstube]

Cool!
What is the orientation of the LED?
How did you capture 1080p from your microscope?
(did you use a macro lens for your camcorder?)

[nobeltnium]

what happend when the led overcurrented? what's the maximum current it can get?

[Dillon]

@Afrotechmods Ive turned a bright / ice white LED to a really deep / bright blue before. I used a 3.7v 260mAh Lithium Ion Battery with out a resister. -Direct plug n play. It got really hot, then changed from the white to blue slowly and got brighter. The i had to unplug it cause it got so ho i couldn't hold it anymore and it was starting to smell. But when i plugged it back it it didn't work anymore.. :/

[TheFreakger]

Reminds me a little bit of the look into a nuclear reactor that emitts cherenkow radiation.

[thewii]

@Afrotechmods i've done that too.

[mitpatterson]

one suggestion is to release your vids on a more regular basis instead of chunks like this, that way we don't go missing you so long :)

[AppleKid]

What kind of microscope are you using?

[ducttaperulestheworl]

@Afrotechmods
ordinary LED sucks... try High Powered LED ones XD

how about LCD screen overheats? will it just turn black or what?

[electronicballast]

This looks like something from a scifi show/film. I was almost temped to whistle Doctor Who or get out my theramin.