Figure 1.

Schematic illustration of the cross-section profile of vertically coupled quantum dots in the radial direction. Here <a onClick="popup('http://www.nanoscalereslett.com/content/7/1/585/mathml/M2','MathML',630,470);return false;" target="_blank" href="http://www.nanoscalereslett.com/content/7/1/585/mathml/M2">View MathML</a> and <a onClick="popup('http://www.nanoscalereslett.com/content/7/1/585/mathml/M3','MathML',630,470);return false;" target="_blank" href="http://www.nanoscalereslett.com/content/7/1/585/mathml/M3">View MathML</a> are position vectors of the electron and the hole, respectively.

GutiĆ©rrez et al. Nanoscale Research Letters 2012 7:585   doi:10.1186/1556-276X-7-585
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