Spectra analysis of Nd(DBM)3(TPPO)2 in MMA solution and PMMA matrix.
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.
Structure Research Laboratory, University of Science and Technology of China, Hefei, Anhui 230026, PR China.
Biao
B
Chen
Jie
J
Xu
Ning
N
Dong
Hao
H
Liang
Qijin
Q
Zhang
Min
M
Yin
D047188:Chalcones / Q000737:chemistry*; D008768:Methylmethacrylates / Q000737:chemistry*; D008956:Models, Chemical; D009354:Neodymium / Q000737:chemistry*; D019904:Polymethyl Methacrylate / Q000737:chemistry*; D012996:Solutions / Q000737:chemistry; D013053:Spectrophotometry; D013730:Terphenyl Compounds / Q000737:chemistry*
D047188:Chalcones; D008768:Methylmethacrylates; D012996:Solutions; D013730:Terphenyl Compounds; D009354:Neodymium; D019904:Polymethyl Methacrylate; C061481:dibenzoylmethane