Answered: (a) A photodiode used in a solar cell…

(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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Question

(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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