Zusammenfassung

We report the first observation of phonon-assisted photoluminescence up-conversion from CsPbBr3 nanocrystals (NCs) at both the ensemble and single-NC levels. Ensemble up-conversion efficiencies are estimated to be on the order of 75\% for a ΔE = 23 meV excitation detuning into the nanocrystal gap.

Beschreibung

Photoluminescence Up-Conversion in CsPbBr3 Nanocrystals - ACS Energy Letters (ACS Publications)

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