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Communication

Chem. Commun., 2009, 3392 - 3394, DOI: 10.1039/b902563d

The exceptional near-infrared luminescence properties of cuprorivaite (Egyptian blue)

Gianluca Accorsi, Giovanni Verri, Margherita Bolognesi, Nicola Armaroli, Catia Clementi, Costanza Miliani and Aldo Romani

Cuprorivaite (CaCuSi4O10, also known as Egyptian blue) exhibits an exceptionally high emission quantum efficiency in the near-infrared region (max = 910 nm, EM = 10.5%) and a long excited state lifetime (107 s); these properties make it appealing for several applications in the fields of biomedical analysis, telecommunications and lasers.

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