Spectroscopy and Spectral Analysis, Volume. 34, Issue 6, 1482(2014)
Differentiated Fluorescence Centers in Europium Acetylacetonate Hydrate Doped Poly Methyl Methacrylate
Poly methyl methacrylate (PMMA) was doped with europium acetylacetonate hydrate. Judd-Ofelt parameters Ω2 (19.73×10-20 cm2) and Ω4 (2.19×10-20 cm2) indicate a high inversion asymmetry and strong covalent environment around Eu3+ in PMMA. The maximum stimulated emission cross-sections for the 5D0→7FJ(J=1, 2 and 4) transitions in EAH doped PMMA were calculated to be 0.38×10-21, 4.90×10-21 and 0.36×10-21 cm2, respectively. Efficient purplish-red and red fluorescence was obtained from europium acetylacetonate hydrate doped PMMA under 365 and 254 nm excitation respectively, indicating that it can be used as UV sensitive components for fiber optic sensors. Because of the suitable refractive index difference between doped sample and pure PMMA, it is expected to fabricate standard 9 μm/125 μm optical fiber which supports multi-mode transmission, providing basis of further development for medical fiber, flexible communication fiber and fiber optic sensor.
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ZHANG Yang-yang, ZHONG Hua, CHEN Bao-jiu, XIA Ying, LIN Hai. Differentiated Fluorescence Centers in Europium Acetylacetonate Hydrate Doped Poly Methyl Methacrylate[J]. Spectroscopy and Spectral Analysis, 2014, 34(6): 1482
Category: Research Articles
Received: Jul. 29, 2013
Accepted: --
Published Online: Jun. 24, 2014
The Author Email: Yang-yang ZHANG (wjs@dlpu.edu.cn)