Judd-Ofelt Analysis on Trifluoroacetate Europium Complexes for Liquid Laser Media

doi:10.1007/s40242-013-2046-6

Abstract

Abstract:

Four europium trifluoroacetate complexes, Eu(CF₃COO)₃·bpy(bpy=2,2′-bipyridine)(1), Eu(CF₃COO)₃· phen(phen=1,10-phenanthroline)(2), Eu(CF₃COO)₃·2bp(bp=benzophenone)(3) and Eu(CF₃COO)₃·2tppo(tppo=triphenyl-phosphine oxide)(4) were synthesized and characterized by elemental analysis, Fourier transform infrared(FTIR) spectroscopy, photoluminescence(PL) spectroscopy and thermogravimetric analysis(TGA). The PL spectra of the complexes at room temperature show the strong typical Eu³⁺ ion red emission, due to the efficient energy “antenna absorption” of ligands and transitions of Eu³⁺ ion between ⁵D₀→⁷F_J_(J=0―4). The long lifetime and high quantum yield reflect that the multiphonon relaxations by coupling to O―H and C―H vibrations were reduced. According to the photoluminescent spectra, the Judd-Ofelt parameters Ω₂ and Ω₄ of the complexes were calculated and the radiative properties were also presented. The ⁵D₀ radiative lifetime, quantum yield and the stimulated emission cross-section of the complexes are excellent, which prove that they have promising optical properties for liquid laser. The thermal analyses indicate that they are quite stable to heat.

Key words: Europium complex, Luminescent property, Judd-Ofelt theory

SHE Jiang-bo, LI Dong-dong, GAO Fei, QIAO Ze-bang, LIU Huan-huan, WEI Wei, PENG Bo. Judd-Ofelt Analysis on Trifluoroacetate Europium Complexes for Liquid Laser Media[J]. Chemical Research in Chinese Universities, 2013, 29(1): 166-170.

References

[1] Fuhrmann T., Salbeck J., MRS Bull., 2003, 28, 354

[2] Kataoka Y., Paul D., Miyake H., Shinoda S., Tsukube H., Dalton Trans., 2007, 2784

[3] Tremblay M. S., Halim M., Sames D., J. Am. Chem. Soc., 2007, 129, 7570

[4] Schemitschek E. J., Nehrich R. B., Trias J. A., J. Chem. Phys., 1965, 42, 788

[5] Hasegawa Y., Wada Y., Yanagida S., Kawai H., Yasuda N., Nagamura T., Appl. Phys. Lett., 2003, 83, 3599

[6] Lempicki A., Samelson H., Phys. Lett., 1963, 4, 134

[7] Samelson H., Lempicki A., Brecher C., Brophy V., Appl. Phys. Lett., 1964, 5, 173

[8] Riedel E. P., Charles R. G., J. Chem. Phys., 1966, 45, 1908

[9] Taniguchi H., Tomisawa H., Kido J., Appl. Phys. Lett., 1995, 66, 1578

[10] Lehn J. M., Angew. Chem. Int. Ed., 1990, 29, 1304

[11] Song Q. S., Yang Y., Zhu X. F., Chem. J. Chinese Universities, 2012, 33(5), 1084

[12] Pavithran R., Kumar S. N. S., Biju S., Reddy M. L. P., Junior S. A., Freire R. O., Inorg. Chem., 2006, 45, 2184

[13] Sa G .F., Malta O. L., Donega C. D., Simas A. M., Longo R. L., Santa-Cruz P. A., Silva E. F., Coord. Chem. Rev., 2000, 196, 165

[14] Biju S., Raj D. B. A., Reddy M. L. P., Kariuki B. M., Inorg. Chem., 2006, 45, 10651

[15] Xin H., Shi M., Gao X. C., Huang Y. Y., Gong Z. L., Nie D. B., Cao H., Bian Z. Q., Li F. Y., Huang C. H., J. Phys. Chem. B, 2004, 108, 10796

[16] Latva M., Takalo H., Mukkala V. M., Matachescu C., Rodriguez-Ubis J. C., Kanakare J., J. Lumin., 1997, 75, 149

[17] Steemers F. J., Verboom W., Reinhoudt D. N., Vander E. B., Verhoeven J. W., J. Am. Chem. Soc., 1995, 117, 9408

[18] Marciniak B., Elbanowski M., Lis S., Monatsh. Chem., 1988, 119, 669

[19] Nakamura K., Hasegawa Y., Kawai H., Yasuda N., Kanehisa N., Kai Y., Nagamura T., Yanagida S., Wada Y., J. Phys. Chem. A, 2007, 111, 3029

[20] Babu P., Jayasankar C. K., Physica B, 2000, 279, 262

[21] Peng C., Zhang H., Yu J., Meng Q., Fu L., Li H., Sun L., Guo X., J. Phys. Chem. B, 2005, 109, 15278

[22] Judd B. R., Phys. Rev., 1962, 127, 750

[23] Ofelt G. S., J. Chem. Phys., 1962, 37, 511

[24] Ge G. W., Liu M. P., Ni Z. G., Du H. B., Chem. J. Chinese Universities, 2011, 32(3), 644

[25] Malta O. L., Brito H. F., Menezes J. F. S., Goncalves S. F. R., Alves S. Jr., Farias F. S. Jr., de Andrade A. V. M., J. Lumin., 1997, 75, 255

[26] Carnall W. T., Fields P. R., Rajnak K., J. Chem. Phys., 1968, 49, 4450

[27] de Mello D. C., Alves S. Jr., de Sa G. F. , J. Alloys Compd., 1997, 250, 422

[28] Chen B., Luo Y. H., Liang H., Xu J., Guo F. Q., Zhang Y. Z., Lin A. B., Liu X., Spectrochim. Acta Part A, 2008, 70, 1203

[29] Weber M. J., Varitimos T. E., Matsinger B. H., Phys. Rev. B, 1973, 8, 47

[30] Guan J. B., Chen B., Sun Y. Y., Liang H., Zhang Q. J., J. Non-Cryst. Solids, 2005, 351, 849

[31] Hou Y., Dong X. T., Wang J. X., Liu G. X., Li L. H., Chem. J. Chinese Universities, 2011, 32(2), 225