Probing the energy transfer process by controlling the morphology of CH3NH3PbBr3 nanocrystals with rhodamine B dye

Add time:08/18/2019    Source:sciencedirect.com

A facile synthesis of tunable blue to green luminescent colloidal MAPbBr3 Perovskite NCs is synthesized by solution processed ligand assisted re-precipitation technique (LARP). Different behaviour in optical properties and morphology of MAPbBr3 perovskite NCs has been observed by tuning the ratio of oleic acid and oleylamine. Rhodamine B has been chosen as dye to study electron migration between perovskite NCs and dye. It has been investigated that both blue and green luminescent nanoparticles leads to different energy transfer behaviour with dye. Green luminescent MAPbBr3 nanoparticles are able to show Förster Resonance Energy Transfer whereas in blue luminescent nanoparticles, there is fluorescence quenching because of aggregation between perovskite and rhodamine b dye. These studies have been utilized in study of different interaction between tunable perovskite and rhodamine B dye.

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