Stark Effect of Interactive Electron-hole pairs in Spherical Semiconductor Quantum Dots

Details Stark Effect of Interactive Electron-hole pairs in Spherical Semiconductor Quantum Dots Stark Effect of Interactive Electron-hole pairs in Spherical Semiconductor Quantum Dots

2009-05-19

arxiv.org/abs/0905.3080v3

Journal of Physics Condensed Matter 21, 39 (2009) 395302

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

10.1088/0953-8984/21/39/395302

We present a theoretical variational approach, based on the effective mass approximation (EMA), to study the quantum-confinement Stark effects for spherical semiconducting quantum dots in the strong confinement regime of interactive electron-hole pair and limiting weak electric field. The respective roles of the Coulomb potential and the polarization energy are investigated in details. Under reasonable physical assumptions, analytical calculations can be performed. They clearly indicate that the Stark shift is a quadratic function of the electric field amplitude in the regime of study. The resulting numerical values are found to be in good agreement with experimental data over a significant domain of validity.

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