Reply #13: Sorry, Don't Need To

[ProfessorGAC]

I've done consulting work on the quantum chemistry involved, in the very plants where they make them, with the very people making them. Wikipedia is not a universally regarded technical source. Good starting point, but hardly the alpha-omega. I'll trust my direct experience.

Gallium arsenide is used in high end electronic components because the atomic matrix is very compact and the orbital shape is such that there is little decay in electron velocity. Hence, they are fast and generate very little heat. The trade-off is cost.

Aluminosilicates are and always have been the most common chemical component in an LED.
GAC