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Optical Properties of LaF3:Er,Yb Nanoparticle-Doped Organic–Inorganic Hybrid Material

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Oleic acid (OA)-modified LaF3:Er,Yb nanoparticle-doped organic–inorganic hybrid material (OIHM) was prepared. The absorption spectrum and photoluminescence spectrum were analyzed. The full width at half maximum (FWHM) of the photoluminescence spectrum was about 83 nm. The Judd-Ofelt theory was used to analyze the absorption spectrum of Er3+ and obtain the intensity parameters: Ω2 = 2.11 × 10−20 cm2, Ω4 = 0.78 × 10−20 cm2, Ω6 = 0.56 × 10−20 cm2. The line strengths predict spontaneous transition probabilities, and the radiative lifetimes are calculated with the Judd-Ofelt intensity parameters. The calculated radiative lifetime of the excited 4I13/2 state of Er3+ is 13.34 ms. Based on the parameters we calculated, OA-modified LaF3:Er,Yb nanoparticle-doped OIHM is a potential material for polymeric optical waveguide amplifiers.
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Keywords: JUDD-OFELT THEORY; LAF3:ER,YB NANOPARTICLE-DOPED ORGANIC-INORGANIC HYBRID MATERIAL; RADIATIVE LIFETIME; WAVEGUIDE AMPLIFIES

Document Type: Research Article

Publication date: 2010-03-01

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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