Photodiodes vs LEDs: Gallium Arsenide Sensitivity

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Gallium arsenide (GaAs) photodiodes are likely sensitive to light emitted from gallium phosphide (GaP) LEDs, which are available in green to red wavelengths. GaAs photodiodes are effective in the visible spectrum and are commonly used in solar cells. Their sensitivity can vary based on the diode's thickness and structural characteristics. Understanding the response curve of GaAs photodiodes is essential for optimizing their performance with GaP LEDs. Overall, the compatibility between these materials suggests potential applications in optoelectronics.
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Would a gallium arsenide photodiode be sensitive to light from a gallium phopsphide LED?
 
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Probably :
You can make GaP LEDs in green->red
GaAs photodiodes certainly work in the visible (used as solar cells) don't know their response curve and it's probably sensitive to the thickness and structure of the diode.
 
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