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Evolution of CaGd2ZnO5:Eu3+ nanostructures for rapid visualization of latent fingerprints

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Abstract

Nanostructured inorganic materials are potential building blocks for advanced materials and devices with desired functions. Latent fingerprint technology requires cost-effective and high-quality luminescent nanomaterials to identify an individual with sufficient information. We report the synthesis and growth mechanism of novel nanostructured CaGd2ZnO3(CO3)2·H2O and CaGd2ZnO5 materials through a urea- and EDTA-mediated hydrothermal process. The conversion from the carbonate to the oxide form is explained using physicochemical measurements. Furthermore, when doped with Eu3+ ions, CaGd2ZnO5 nanostructures exhibit superior luminescent properties to replace conventional red phosphors for latent fingerprint technology. In contrast to previously reported individual fluorescent nanoparticles, CaGd2ZnO5:5Eu3+ nanostructures provide three levels of identification with high-quality imaging on various hydrophilic and hydrophobic substrates. These properties demonstrate that CaGd2ZnO5:Eu3+ nanorod bundles are a promising luminescent material for solid-state lighting and latent fingerprint technologies.

Graphical abstract: Evolution of CaGd2ZnO5:Eu3+ nanostructures for rapid visualization of latent fingerprints

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Publication details

The article was received on 25 Feb 2017, accepted on 27 Mar 2017 and first published on 28 Mar 2017


Article type: Paper
DOI: 10.1039/C7TC00852J
Citation: J. Mater. Chem. C, 2017, Advance Article
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    Evolution of CaGd2ZnO5:Eu3+ nanostructures for rapid visualization of latent fingerprints

    G. Seeta Rama Raju, J. Y. Park, G. P. Nagaraju, E. Pavitra, H. K. Yang, B. K. Moon, J. S. Yu, Y. S. Huh and J. H. Jeong, J. Mater. Chem. C, 2017, Advance Article , DOI: 10.1039/C7TC00852J

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