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Multi-NIR-Emissive Materials based on Heterolanthanide Molecular Assemblies

Published online by Cambridge University Press:  24 May 2016

Flavia Artizzu ,
Francesco Quochi ,
Luciano Marchiò ,
Michele Saba ,
Angela Serpe ,
Andrea Mura ,
Maria Laura Mercuri ,
Giovanni Bongiovanni  and
Paola Deplano
Flavia Artizzu*
Affiliation:
Dipartimento di Scienze Chimiche e Geologiche and INSTM, University of Cagliari, SS 554 Bivio per Sestu, I-09042, Monserrato-Cagliari, Italy
Francesco Quochi
Affiliation:
Dipartimento di Fisica, University of Cagliari, SS 554 Bivio per Sestu, I-09042, Monserrato-Cagliari, Italy
Luciano Marchiò
Affiliation:
Dipartimento di Chimica, University of Parma, Parco Area delle Scienze 17A, I-43100 Parma, Italy
Michele Saba
Affiliation:
Dipartimento di Fisica, University of Cagliari, SS 554 Bivio per Sestu, I-09042, Monserrato-Cagliari, Italy
Angela Serpe
Affiliation:
Dipartimento di Scienze Chimiche e Geologiche and INSTM, University of Cagliari, SS 554 Bivio per Sestu, I-09042, Monserrato-Cagliari, Italy
Andrea Mura
Affiliation:
Dipartimento di Fisica, University of Cagliari, SS 554 Bivio per Sestu, I-09042, Monserrato-Cagliari, Italy
Maria Laura Mercuri
Affiliation:
Dipartimento di Scienze Chimiche e Geologiche and INSTM, University of Cagliari, SS 554 Bivio per Sestu, I-09042, Monserrato-Cagliari, Italy
Giovanni Bongiovanni
Affiliation:
Dipartimento di Fisica, University of Cagliari, SS 554 Bivio per Sestu, I-09042, Monserrato-Cagliari, Italy
Paola Deplano
Affiliation:
Dipartimento di Scienze Chimiche e Geologiche and INSTM, University of Cagliari, SS 554 Bivio per Sestu, I-09042, Monserrato-Cagliari, Italy Dipartimento di Fisica, University of Cagliari, SS 554 Bivio per Sestu, I-09042, Monserrato-Cagliari, Italy
*
*(Email: [email protected])
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Abstract

ErxYb(3-x)Q9 (1, x = 1, 2), NdYb2Q9 (2), NdEr2Q9 (3) and NdErYbQ9 (4), have been obtained through a simple molecular strategy, by controlling reactant stoichiometry. In 2-4, the templating effect of the molecular framework allows to control the metal distribution across the coordination sites where the central position is occupied by the larger Nd ion and the terminal ones by the almost vicariants Yb3+ and Er3+, drastically reducing molecular speciation. Remarkably, 4 represents the first example of a discrete molecular entity containing three different Ln ions simultaneously emitting in three different spectral regions in the NIR, upon single visible wavelength excitation. Highly transparent and homogeneous doped silica glasses have been prepared, which show the same optical properties of the incorporated complex in solution.

Keywords

lanthanideluminescenceoptical properties
Type
Articles
Information
MRS Advances , Volume 1 , Issue 38: Materials Design , 2016 , pp. 2683 - 2688
Copyright
Copyright © Materials Research Society 2016 

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References

REFERENCES

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