[1] Tang C W, VanSlyke S A. Organic electroluminescent diodes. Appl. Phys. Lett., 1987, 51(12):913～915

[2] Tsutsui I, Saito S. Organic Multilayer-Dye Electroluminescent Diodes--Is There Any Difference with Polymer LED Dordrecht: Kluwer Academic, 1993

[3] Cao Y, Parker I D, Yu G et al.. Improved quantum efficiency for electroluminescence in semiconduucting polymers. Nature, 1999, 397(6718):414～417

[4] Burroughes J H, Marks R N, Taliani C et al.. Electroluminescence in conjugated polymers. Nature, 1999, 397(6715):121～128

[5] Rothberg L J, Lovinger A J. Status of and prospects of organic electroluminescence: J. Mater. Res., 1996, 11(12):3174～3187

[6] Hoshino S, Suzuki H. Electroluminescence from triplet excited states of benzophenone. Appl. Phys. Lett., 1996, 69(2):224～226

[7] Baldo M A, O'Brien D F, You Y et al.. Highly efficient phosphorescent emission from organic electroluminescent devices. Nature, 1998, 395(6698):151～154

[8] Li W L, Yu G, Zhao X. The preparation and luninescence of Eu(Ⅲ) activated o-phenanthroline containing Gd(Ⅲ) succinate phosphors. J. Alloys Comp., 1994, 206(2):195～199

[9] Li W L, Li W, Yu G et al.. Luminescence enhancement of Eu(Ⅲ) or Tb(Ⅲ) complexes with organic ligands by Ln (Ⅲ)(Ln=Y, La, Gd, Lu). J. Alloys Comp., 1993,192(1):34～36

[10] Yuster P, Weissman S I. Effects of perturbations on photophorescence: Luminescence of metal organic complexes. J. Chem. Phys., 1949, 17(12):1182～1188

[11] Weissman S I. Intramolecular energy transfer: The fluorescence of complexes of europium. J. Chem. Phys., 1942, 10(4):214～217

[12] Garbuzov D Z, Bulovic V, Burrows P E et al.. Photoluminescence efficiency and absorption of a aluminum-tris-quinolate (Alq3) thin films. Chem. Phys. Lett., 1996, 249(5,6):433～437

[13] Greenham N C, Samuel I D W, Hayes G R et al.. Measurement of absolute photoluminescence quantum efficiencies in conjugated polymers. Chem. Phys. Lett., 1995, 241(1,2):89～96