Nd(DBM)3(TPPO)2在甲基丙烯酸甲酯溶液和聚甲基丙烯酸甲酯基体中的光谱分析。
Spectra analysis of Nd(DBM)3(TPPO)2 in MMA solution and PMMA matrix.
作者信息
Chen Biao, Xu Jie, Dong Ning, Liang Hao, Zhang Qijin, Yin Min
机构信息
Structure Research Laboratory, University of Science and Technology of China, Hefei, Anhui 230026, PR China.
出版信息
Spectrochim Acta A Mol Biomol Spectrosc. 2004 Nov;60(13):3113-8. doi: 10.1016/j.saa.2004.02.023.
The absorption spectra of Nd(DBM)3(TPPO)2 (DBM = dibenzoylmethane; TPPO = triphenylphosphine oxide) in methyl methacrylate (MMA) and polymethyl methacrylate (PMMA) were measured. Slater-Condon parameters (F2, F4, F6), Lander parameter (zeta4f), nephelauxetic effect parameters (beta, delta) and Judd-Ofelt parameters (Omega2, Omega4, Omega6) were calculated on the basis of the absorption spectra. Analysis of the relationship between the structure of rare-earth complexes and the nephelauxetic effect, Judd-Ofelt parameter Omega2 was carried out. The radiative properties of Nd(DBM)3(TPPO)2 in PMMA were also predicted according to the Judd-Ofelt theory. The values of the radiative lifetime and the emission cross-section of 4F3/2 --> 4I11/2 fluorescence transition are comparable with those shown by glasses used in the solid-state laser applications.
测量了Nd(DBM)3(TPPO)2（DBM = 二苯甲酰甲烷；TPPO = 三苯基氧化膦）在甲基丙烯酸甲酯（MMA）和聚甲基丙烯酸甲酯（PMMA）中的吸收光谱。基于吸收光谱计算了斯莱特-康登参数（F2、F4、F6）、兰德参数（ζ4f）、电子云重排效应参数（β、δ）和贾德-奥费尔特参数（Ω2、Ω4、Ω6）。对稀土配合物结构与电子云重排效应之间的关系进行了分析，研究了贾德-奥费尔特参数Ω2。还根据贾德-奥费尔特理论预测了Nd(DBM)3(TPPO)2在PMMA中的辐射特性。4F3/2→4I11/2荧光跃迁的辐射寿命和发射截面值与固态激光应用中使用的玻璃的值相当。
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