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Types of Light Emitting Diode
 • Gallium Arsenide (GaAs) – infra-red
• Gallium Arsenide Phosphide (GaAsP) – red to infra-red, orange
• Aluminium Gallium Arsenide Phosphide (AlGaAsP) – high-brightness red, orange-red, orange, and yellow
 • Gallium Phosphide (GaP) – red, yellow and green
 • Aluminium Gallium Phosphide (AlGaP) – green
 • Gallium Nitride (GaN) – green, emerald green
 • Gallium Indium Nitride (GaInN) – near ultraviolet, bluish-green and blue
 • Silicon Carbide (SiC) – blue as a substrate
 • Zinc Selenide (ZnSe) – blue
 • Aluminium Gallium Nitride (AlGaN) – ultraviolet

Light Emitting Diodes I-V Characteristics.

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