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Comment on "Quantum Confinement and Optical Gaps in Si Nanocrystals"

Alberto Franceschetti·Lin-Wang Wang·Alex Zunger
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Abstract

We show that the method used by Ogut, Chelikowsky and Louie (Phys. Rev. Lett. 79, 1770 (1997)) to calculate the optical gap of Si nanocrystals omits an electron-hole polarization energy. When this contribution is taken into account, the corrected optical gap is in excellent agreement with semi-empirical pseudopotential calculations.

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Alberto Franceschetti, Lin-Wang Wang, Alex Zunger. 1998-04-20. Comment on "Quantum Confinement and Optical Gaps in Si Nanocrystals". https://doi.org/10.1103/physrevlett.83.1269

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