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Optical transition properties of Eu in Eu(DBM)3phen mono-dispersed microspheres for microcavity laser application |
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| Authors: | Libo HuangLihong Cheng Hongquan YuLe Zhou Jiashi SunHaiyang Zhong Xiangping LiJinsu Zhang Yue TianYanfeng Zheng Tingting YuJuan Wang Baojiu Chen |
| Affiliation: | a Department of Physics, Dalian Maritime University, Dalian, Liaoning 116026, PR China b College of Environmental and Chemical Engineering, Dalian Jiaotong University, Dalian, Liaoning 116028, PR China c Information Engineering Department, Tianjin Engineering Technical Institute, Tianjin 300280, PR China |
| Abstract: | Mono-dispersed microspheres of ternary complex Eu(DBM)3phen (DBM=dibenzoylmethide; phen=1,10-phenanthroline) were prepared through a facile process. The obtained sample was characterized by means of X-ray powder diffraction (XRD) and scanning electron microscope (SEM). And the luminescence properties of the Eu(DBM)3phen were investigated by the fluorescence spectra and the fluorescence decay. According to Judd-Ofelt theory, the optical transition intensity parameters Ωλ (λ=2, 4 and 6) were obtained to be 20.99×10−20, 0.98×10−20 and 1.79×10−20 cm2, respectively. The radiative transition properties of 5D0 level, including transition rates, branch ratios and radiative transition lifetime were calculated. As a potential material for microsphere lasers, the optical gain performance for 5D0→7F2 transition was also evaluated. |
| Keywords: | Luminescence Judd-Ofelt theory Optical intensity parameters |
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