Which outcome occurs when semiconductor quantum dot size matches a specific excitation wavelength?

💡 Explanation

When quantum dot size matches excitation wavelength, quantum confinement enhances wave function overlap, increasing probability that electron in excited state with p-like orbital near band edge recombines with hole, generating photons. Therefore enhanced recombination results, rather than migration, reduced bandgap, or scattering suppression, which involve altering dot composition or structure.

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