Synthesis of highly luminescent nanocomposite LaF3:Ln(3+)/Q-dots-CdTe system, exhibiting tunable red-to-green emission

• Autoři: ŘEZÁČOVÁ Lenka; RUNOWSKI Marcin; LUBAL Přemysl; SZYCZEWSKI Andrzej; LIS Stefan
• Rok publikování: 2019
• Druh: Článek v odborném periodiku
• Časopis / Zdroj: Chemical Papers
• Fakulta / Pracoviště MU: Přírodovědecká fakulta
• www: https://link.springer.com/article/10.1007%2Fs11696-019-00816-8
• Doi: http://dx.doi.org/10.1007/s11696-019-00816-8
• Klíčová slova: Luminescence; CdTe quantum dots; Lanthanide-doped fluorides; Energy transfer; Nanocomposites
• Popis: Preparation of LaF3:Gd3+ 30%, Ce3+ 10%, Eu3+ 1% NPs conjugated with CdTe quantum dots was performed by two methods. The first method includes mixing of two products, while the second method is based on the co-precipitation approach. The mixing of individual components did not lead to the formation of a new product. On the contrary, the product obtained by co-precipitation synthesis resulted in particles having about 140 nm in diameter. This nanocomposite system exhibits tunable red (lambda(exc) = 248 nm) and green (lambda(exc) = 340 m) luminescence due to the presence of Eu3+ ion and CdTe quantum dots.

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• CEITEC 2020
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