Transcript Slide 1

Without knowing the Eg of Si and Ge, do you know which one conduct better, why?
Semicondutor compound: III-V (GaAs)
What happened if Ga atoms are doped with Zn?
What happened if Ga atoms are doped with S?
If you couldn’t get the answer, go to the tutoring class.
light emitting diode
Flat
LED convert electrical energy into light energy
Many types of light emitting diode made by semiconductor
compounds.
How about Si and Ge, why LED are not made of Si and Ge? Do you know the answer?
Prototype from LG - Active Matrix Organic Light-Emitting Diode
(AMOGD)
Transistor