Questions
The electrical conductivity of a semi conductor increases when electro magnetic radiation of wavelength shorter than 2480 nm is incident on it. The forbidden band gap for the semi conductor is
detailed solution
Correct option is C
When the energy of the incident photon is equal to or more than band gap energy conductivity of the semiconductor increases due to production of hole electron pair. here energy of the photon is 1240024800=0.5 eVTalk to our academic expert!
Similar Questions
In pure silicon at 300 K the electron and hole concentration is each equal to When doped with indium, the hole concentration increases to What is the electron concentration in doped silicon?
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