Morphology control and luminescent properties of Eu/Tb-doped calcium carbonate nanoparticles using natural limestone

Chen, Feng; Zhang, Youjia; Feng, Wei; Zhao, Dongnan; Ruan, Min; Zhang, Qing

doi:10.1016/j.jlumin.2021.118259

Cited by 2 publications

(1 citation statement)

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“…Lanthanide (e.g., Eu and Tb)-doped nanostructures are also a highly effective luminescent species and have been investigated extensively. It was demonstrated that the lanthanide doping of inorganic materials results in highly stable materials with large Stokes shifts, narrow emission peaks, and some of the longest photoluminescent lifetimes available [ 15 , 18 , 19 , 20 , 21 , 22 , 23 , 24 ]. QD-loaded inorganic structures have been used for numerous applications including but not limited to biosensing [ 25 ], as well as optical microresonators [ 26 ] and white light emitters [ 27 ].…”

Section: Introductionmentioning

confidence: 99%

Chiroptically Active Multi-Modal Calcium Carbonate-Based Nanocomposites

Donnelly,

Purcell-Milton,

Caffrey

et al. 2023

Nanomaterials

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The development of multimodal nano- and micro-structures has become an increasingly popular area of research in recent years. In particular, the combination of two or more desirable properties within a single structure opens multiple opportunities from biomedicine, sensing, and catalysis, to a variety of optical applications. Here, for the first time, we report the synthesis and characterization of multimodal chiroptically active CaCO3 nanocomposites. These composites have been prepared by a modified microemulsion method in the presence of an amino acid (cysteine). Following this, additional modalities have been introduced by loading the composites with luminescent nanoparticles or doping with Eu3+ ions. The luminescent composites have been produced by the incorporation of CuInZnS/ZnS or CdSe@ZnS/ZnS core/shell quantum dots, or via doping with trivalent europium. In this manner, we have produced chiroptically active composites with orange, green, and red luminescence. Overall, this work demonstrates the unique advantage and potential of our approach and new class of chiroptically active CaCO3 nanocomposites, which display tunable functionality to specific requirements via the incorporation of desired ions, nanoparticles, and chirality of the structure.

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