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(a) Cross-sectional TEM image of a single quantum rod grown by submonolayer close stacking of InAs and GaAs (along the  direction).
Low temperature spectra of an ensemble of quantum rods in the range of the ground state emission for different values of excitation power.
Microphotoluminescence spectra as a function of the excitation power revealing emission lines corresponding to exciton and biexciton radiative recombinations in a single quantum rod.
Integrated intensity dependence of both and lines of a single quantum rod observed in the spectra (symbols) and calculated according to the Eqs. (3) and (4) for (dashed lines) and (continuous lines).
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