Modern InGaAs PIN photodiodes are panchromatic. The regular sensitivity range is 500 nm to 1700 nm; for extended InGaAs diodes, this range extends to 2600 nm.
Si PIN Photodiodes. Si photodiodes are reverse-biased PIN diodes. They detect light in a range from 250 nm to 1.1 µm. The incident radiation results in a measurable photocurrent.
UV photodiodes are produced from the material SiC. Detection of radiation occurs in the range from 200 nm to 400 nm. Detectors are available with filters that are sensitive in the UV-C, UV-B, or UV-A.