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The Energy Gap Between the Valence and Conduction Bands in a Certain

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The energy gap between the valence and conduction bands in a certain semiconductor is The energy gap between the valence and conduction bands in a certain semiconductor is .What is the threshold wavelength for optical absorption in this substance? ,1 eV = 1.60 × 10<sup>-19</sup> J,h = 6.626 × 10<sup>-34</sup> J • s) A) 599 nm B) 639 nm C) 959 nm D) 873 nm E) 994 nm .What is the threshold wavelength for optical absorption in this substance? The energy gap between the valence and conduction bands in a certain semiconductor is .What is the threshold wavelength for optical absorption in this substance? ,1 eV = 1.60 × 10<sup>-19</sup> J,h = 6.626 × 10<sup>-34</sup> J • s) A) 599 nm B) 639 nm C) 959 nm D) 873 nm E) 994 nm ,1 eV = 1.60 × 10-19 J,h = 6.626 × 10-34 J • s)


A) 599 nm
B) 639 nm
C) 959 nm
D) 873 nm
E) 994 nm

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