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(a) PL spectra of a mixed system of CdTe NCs in pure water recorded on a single droplet ( volume) at different times during the evaporation of solvent. (b) PL and absorption spectra for NCs and NCs in aqueous solution. It shows the energy overlap in the dots’ (serving as donors) PL spectrum with the dots’ (serving as acceptor) absorption spectrum.
PL spectra of pure large NCs in aqueous solution recorded on a single droplet ( volume) at different times during the evaporation of solvent. The concentration of NCs is the same as that of in Fig. 1(a).
PLE spectra for the mixed films of CdTe NCs monitoring the PL peak of the dot .
Distance and drying time dependence of the normalized emission intensity for large NCs in the mixed system.
(Color) True-color luminescence images of water droplets containing donors (top), acceptors (bottom), or mixed (middle) CdTe NCs taken at different times during evaporation of solvent.
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