(a) A photodiode used in a solar cell is designed to absorb light with a wavelength less than or equal to 1 µm. What is the minimum energy band gap (in eV) for the material making up the photodiode?
(a) A photodiode used in a solar cell is designed to absorb light with a wavelength less than or equal to 1 µm. What is the minimum energy band gap (in eV) for the material making up the photodiode?
Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter28: Quantum Physics
Section: Chapter Questions
Problem 7OQ
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(a)
A photodiode used in a solar cell is designed to absorb light with a wavelength less than or equal to 1 µm. What is the minimum energy band gap (in eV) for the material making up the photodiode?
(b)
What If? Cadmium telluride (CdTe) has an energy gap at 300 K of 1.56 eV. What maximum wavelength of sunlight (in nm) could be absorbed by a solar cell consisting of CdTe?
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