. A p - n photodiode is fabricated from a semiconductor with a band gap of 2.8 eV


A p - n photodiode is fabricated from a semiconductor with a band gap of 2.8 eV. Can it detect a wavelength of 6000 nm?

Best Answer

Explanation

Energy for a signal of wavelength 6000 nm is

semiconductor

The energy of the signal is less than the band gap energy i.e 2.8 eV.

 

Final answer

Hence, the energy of the signal of 6000 nm is 0.207 which is less than 2.8 eV that is the band gap energy of the p-n photodiode. Hence, the diode can not detect the signal.

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