Multifunctional nanoparticles based on the Nd^3+/Yb^3+ codoped NaYF_4

Autor:	Longjiang Zheng, Haiyue Qi, Wei Xu, Wenwu Cao, Zhiguo Zhang
Rok vydání:	2015
Předmět:	Materials science business.industry Nanoparticle Photothermal therapy Laser Fluorescence Atomic and Molecular Physics and Optics Ion law.invention law Excited state X-ray crystallography Optoelectronics business Luminescence
Zdroj:	Optics Letters. 40:5678
ISSN:	1539-4794 0146-9592
DOI:	10.1364/ol.40.005678
Popis:	Broadband near-infrared luminescence (NIR) from 720 to 950 nm, which is located in the biological window, has been successfully achieved from Nd3+/Yb3+ codoped hexagonal NaYF4 nanoparticles when excited by 980 nm diode laser. Using the fluorescence intensity ratio technique, the temperature sensing behavior of Nd3+ NIR emissions exhibits various advantages over other rare earth ion based nanothermometers. The light-induced thermal loading for the 980 nm excited NaYF4:Nd3+/Yb3+ was also investigated. The results illustrate the multifunctionality of such fluoride nanoparticles, which could simultaneously act as the luminescent nanothermometers and nanoheaters and find potential application in photothermal therapy.
Databáze:	OpenAIRE
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