As the size of the quantum dots decreases, does thewavelength of the emitted light increase or decrease? Size of CdSe quantum dots2 nm7 nm2.7 eV2.0 eVBand gap energy, EgA Figure 12.45 Photoluminescence depends on particlesize at the nanoscale. When illuminated with ultravioletlight, these solutions, each containing nanoparticles of thesemiconductor CdSe, emit light that corresponds to theirrespective band gap energies. The wavelength of the lightemitted depends on the size of the CdSe nanoparticles.Activate Windows

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