Give various photoemissive materials and suggest relevant combination of material for LED to emit Yellow and Green colour.

Give various photoemissive materials and suggest relevant combination of material for LED to emit Yellow and Green colour.
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1 Answer

Answer :

Various photoemmisive materials are as follows 

 Zinc  Potassium  Lead sulphate  Sodium  Cadmium sulphide

Relevant combination of material for LED to emit Yellow colour 

1. Gallium Phosphide(GaP) 2. Aluminum Gallium Indium Phosphide 3. Gallium Arsenide Phosphide 

Relevant combination of material for LED to emit Green colour 

1. Gallium Phosphide(GaP) 2. Aluminum Gallium Indium Phosphide 3. Aluminum Gallium Phosphide
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