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HRTEM bright-field images under a (0002) two beam condition for samples A (a) and B (b). The inset in (a) is an enlarged view of the energy-filtered HRTEM image of sample A.
Micro PL spectra from samples A (solid line) and B (dashed line).
Calculated transition energy as a function of indium composition for two quantum dot sizes of and where the theoretical energy band gaps for materials in bulk form and experimental PL emission were marked in solid and dashed lines, respectively. Open circles are the experimental data from Ref. 12 (13), where In composition inside cluster (38%), In-rich cluster , and transition . The closed circles are compared values in the same situation acquired from simulations.
All material parameters employed in the calculation of the transition energy.
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