GaAs (E g = 1.4 eV) and ZnSe (E g = 2.6 eV) are isoelectronic with Ge.

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GaAs (Eg = 1.4 eV) and ZnSe (Eg = 2.6 eV) are isoelectronic with Ge. Their band structures are shown below. Are they direct- or indirect-gap semiconductors?

energy (ev) W L GaAs r X W energy (eV) W ZnSe T X W

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Solid State Materials Chemistry

ISBN: 9780521873253

1st Edition

Authors: Patrick M. Woodward, Pavel Karen, John S. O. Evans, Thomas Vogt

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