A p-n photodiode is made of a material with a band gap of 2 eV The minimum frequency of - Chemistry - Structure of Atom

Question

A p-n photodiode is made of a material with a band gap of 2 eV The
minimum frequency of the radiation that can be absorbed by the
material is nearly:-

a) 20 x 1014 Hz
b) 10 x 1014 Hz
c) 5 x 1014 Hz
d) 1 x 1014 Hz

Geetha · Accepted Answer

E= hνν = Eh    = 2 × 1
6 × 10-196
626 × 10-34    = 0
5 × 1015 Hz     = 5 × 1014 Hz

A p-n photodiode is made of a material with a band gap of 2 eV. The minimum frequency of the radiation that can be absorbed by the material is nearly:- a) 20 x 1014 Hz b) 10 x 1014 Hz c) 5 x 1014 Hz d) 1 x 1014 Hz

A p-n photodiode is made of a material with a band gap of 2 eV. The minimum frequency of the radiation that can be absorbed by the material is nearly:-

a) 20 x 10¹⁴ Hz
b) 10 x 10¹⁴ Hz
c) 5 x 10¹⁴Hz
d) 1 x 10¹⁴ Hz