[1] Tang C W,Vanslyke S A.Organic electroluminescent diodes[J].Appl.Phys.Lett.,1987,51:913.915. [2] Baldo M A,Lamansky S,Burows P E,et al.Very high-efficiency green organic light-emitting devices based on electrophosphorescence[J].Appl.Phys.Lett.,1999,75:4-6. [3] Adachi C,Baldo M A,Thompson M E,et al.Nearly 100% internal phosphorescence efficiency in an organic lightemitting device[J].Appl.Phys.,2001,90:5048-5055. [4] Tsuhoyama A,Iwawaki H,Furugori M,Mukaide T,et al.Homoleptic cyclometalated iridium complexes with highly efficient red phosphorescence and application to organic light-emitting diode[J].J.Am.Chem.Soc.,2003,125:12971-12979. [5] Tamayo A B,Alleyne B D,Djurovich P I,Lamansky S,et al.Synthesis and characterization of facial and meridional tris-cyclometalated Iridium(Ⅲ)complexes[J].J.Am.Chem.Soc.,2003,125:7377-7387. [6] Lamansky S,Djurovich P,Murphy D,et al.Highly phosphorescent bis-cyclometalated Iridium complexes:synthesis,photophysical characterization,and use in organic light emitting diodes[J].J.Am.Chem.Soc.,123:4304-4312. [7] Adachi C,Baldo M A,Forrest S R,et al.High-efficiency organic electrophosphorescent devices with tris(2-phenylpyridine)iridium doped into electron-transporting materials[J].Appl.Phys.Lett.,2000,77:904-906. [8] Jiang C,Yang W,Peng J,Xiao S,Cao Y,et al.High-efficiency saturated red-phosphorescent polymer light-emitting diodes based on conjugated and non-conjugated polymers doped with an Ir complex[J].Adv.Mater.,2004,16:537-541. [9] Adamovich V,Brooks J,Tamayo A,et al.High efficiency single dopant white electrophosphorescent light emitting diodes[J].New.J.Chem.,2002,26:1171-1178. [10] Tokitoa S,Iijima T,Suzuri Y,et al.Confinement of triplet energy on phosphorescent molecules for highly-efficient organic blue-light-emitting devices[J].Appl.Phys.Lett.,2003,83:569-571. [11] Lee C L,Lee K B,Kim J J,et al.Polymer phosphorescent light-emitting devices doped with tris(2-phenylpyridine)iridium as a triplet emitter[J].Appl.Phys.Lett.,2000,77:2280-2282. [12] Gong X,Robinson M R,Ostrowski J C,et al.High-efficiency polymer-based electrophosphorescent devices[J].Adv.Mater.,2002,14:581-585. [13] Liu H M,He J,Wang P F,et al.High-efficiency polymer electrophosphorescet diodes based on an Ir(Ⅲ)-complex[J].Appl.Phys.Lett.,2005,87:221103-221105. [14] Yokoyama M,Tamamura T,Nakano T,Mikawa H,et al.Triplet exciton migration in rigid solution of poly(N-vinylcarbazole)and N-vinylcarbazole-fumaronitrile alternating copolymer[J].J.Chem.Phys.,1976,65:272-279. [15] Holmes R J,Forrest S R,Tung Y J,et al.Blue organic electrophosphorescence using exothermic host-guest energy transfer[J].Appl.Phys.Lett.,2003,82:2422-2424. [16] Xie H Z,Liu M W,Wang O Y,Zhang X H,et al.Reduction of self-quenching effect in organic electrophosphorescent emitting devices vía the use of sterically hindered spaces in phosphorescence molecular[J].Adv.Mater.,2001,13:1245-1248. |