The same kind of semiconducting material used to make an LED can also be used to convert absorbed light into electric energy, essentially operating as an LED in reverse. In this case, the absorption of a photon causes an electron transition from a filled state in the valence band to an unfilled state in the conduction band. If ΔEband = 1.4 eV, what is the minimum wavelength of electromagnetic radiation that could lead to electric energy output?A. 140 nm B. 890 nmC. 1400 nm D. 8900 nm
The same kind of semiconducting material used to make an LED can also be used to convert absorbed light into electric energy, essentially operating as an LED in reverse. In this case, the absorption of a photon causes an electron transition from a filled state in the valence band to an unfilled state in the conduction band. If ΔEband = 1.4 eV, what is the minimum wavelength of electromagnetic radiation that could lead to electric energy output?A. 140 nm B. 890 nmC. 1400 nm D. 8900 nm
Modern Physics
3rd Edition
ISBN:9781111794378
Author:Raymond A. Serway, Clement J. Moses, Curt A. Moyer
Publisher:Raymond A. Serway, Clement J. Moses, Curt A. Moyer
Chapter12: The Solid State
Section: Chapter Questions
Problem 12P
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The same kind of semiconducting material used to make an LED can also be used to convert absorbed light into electric energy, essentially operating as an LED in reverse. In this case, the absorption of a photon causes an electron transition from a filled state in the valence band to an unfilled state in the
A. 140 nm B. 890 nm
C. 1400 nm D. 8900 nm
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