ISSN print edition: 0366-6352
ISSN electronic edition: 1336-9075
Registr. No.: MK SR 9/7
Synthesis of highly luminescent nanocomposite LaF3:Ln3+/Q-dots-CdTe system, exhibiting tunable red-to-green emission
Lenka Řezáčová, Marcin Runowski, Přemysl Lubal, Andrzej Szyczewski, and Stefan Lis
Masaryk University, Brno, Czech Republic
Abstract: 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 (λexc = 248 nm) and green (λexc = 340 m) luminescence due to the presence of Eu3+ ion and CdTe quantum dots.
Keywords: Luminescence ; CdTe quantum dots ; Lanthanide-doped fluorides ; Energy transfer ; Nanocomposites
Full paper is available at www.springerlink.com.
Chemical Papers 73 (12) 2907–2911 (2019)
Friday, September 30, 2022