Question
Download Solution PDFIn a semiconductor crystal, if an energy band has a spread of 1 eV, and if there are 1022 discrete states in this band which are equally spaced in energy, then the difference between two consecutive discrete states will be:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
When many atoms are brought into close proximity as in a crystal, the discrete energy levels are replaced with bands of energy states separated by gaps between the bands as shown.
One may think of an energy band as a semi-continuum of a very large number of energy states.
Calculation:
Given;
Energy gap = 1 eV
No. of discrete states = 1022
Then;
The difference between two consecutive discrete states = 1/1022 = 10-22 eV
Last updated on May 8, 2025
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