Question
Question: In a p–type semiconductor the acceptor level is situated 57 meV above the valence band. The maximum ...
In a p–type semiconductor the acceptor level is situated 57 meV above the valence band. The maximum wavelength of light required to produce a hole will be –
A
57 Å
B
57 × 10–3 Å
C
217100 Å
D
11.61 × 10–33 m
Answer
217100 Å
Explanation
Solution
l = eEhc= 1.6×10–19×57×10–36.62×10–34×3×108×1010A˚
= 217100 Å