设计并合成了一种新型的香豆素衍生物,3,3'-(1,3-苯基)双(7-乙氧基-4-甲基香豆素)(mEMCB),并系统地对该香豆素衍生物进行了结构表征、光物理性能、热物理性能及电化学性能的研究.mEMCB具有较高的三重态能级(2.42eV),可敏化绿色、红色磷光掺杂材料.同时,mEMCB还具有较好的热稳定性(Tg:79.72 ℃,Td:361.49 ℃),其Tg明显高于目前广泛使用的磷光主体材料CBP.研究结果表明,mEMCB是一个潜在的可以用于绿色和红色磷光有机电致发光器件的主体材料.
参考文献
[1] | Wittmann H F;Friend R H;Khan M S et al.Optical spectroscopy of platinum and palladium containing poly-ynes[J].Journal of Chemical Physics,1994,101:2693-2698. |
[2] | Kido J;Hayase H;Hongawa K et al.Bright red light-emitting organic electroluminescent devices having a europium complex as an emitter[J].Applied Physics Letters,1994,65:2124-2126. |
[3] | Ma Y;Zhang H;Shen J et al.Metal-ligand charge-transfer excited state of transition metal complexes[J].Synthetic Metals,1998,94:245-248. |
[4] | Baldo M A;O'Brien D F;Thomspon M E et al.Excitonic singlet-triplet ratio in a semiconducting organic thin film[J].Physical Review B:Condensed Matter,1999,60:14422. |
[5] | M. A. Baldo;S. Lamansky;P. E. Burrows .Very high-efficiency green organic light-emitting devices based on electrophosphorescence[J].Applied physics letters,1999(1):4-6. |
[6] | Baldo M A;O'Brien D F;You Y et al.Highly efficient phosphorescent emission from organic electroluminescent devices[J].Nature,1998,395:151-154. |
[7] | Gong Gu;Zilan Shen;Paul E. Burrows;Stephen R. Forrest .Transparent Flexible Organic Light-Emitting Devices[J].Advanced Materials,1997(9):725-728. |
[8] | Gu G;Burrows PE;Venkatesh S;Forrest SR;Thompson ME;UNIV SO CALIF DEPT CHEM LOS ANGELES CA 90089. .Vacuum-deposited, nonpolymeric flexible organic light-emitting devices[J].Optics Letters,1997(3):172-174. |
[9] | Youtian Tao;Qiang Wang;Chuluo Yang .A Simple Carbazole/Oxadiazole Hybrid Molecule: An Excellent Bipolar Host for Green and Red Phosphorescent OLEDs[J].Angewandte Chemie,2008(42):8104-8107. |
[10] | Zhi Qiang Gao;Meiming Luo;Xiao Hua Sun;Hoi Lam Tam;Man Shing Wong;Bao Xiu Mi;Ping Fang Xia;Kok Wai Cheah;Chin Hsin Chen .New Host Containing Bipolar Carrier Transport Moiety For High-efficiency Electrophosphorescence At Low Voltages[J].Advanced Materials,2009(6):688-692. |
[11] | M.-H. Tsai;Y.-H. Hong;C.-H. Chang;H.-C. Su;C.-C. Wu;A. Matoliukstyte;J. Simokaitiene;S. Grigalevicius;J. V. Grazulevicius;C.-P. Hsu .3-(9-Carbazolyl)carbazoles and 3,6-Di(9-carbazolyl)carbazoles as Effective Host Materials for Efficient Blue Organic Electrophosphorescence[J].Advanced Materials,2007(6):862-866. |
[12] | Demelo J S;Becker R S;Macanita A L .Photophysical behavior of coumarins as a function of substitution and solvent:experimental evidence for the existence of a lowest lying 1(n,π*) state[J].Journal of Physical Chemistry,1994,98(24):6054-6058. |
[13] | Eaton D F .Reference materials for fluorescence measurement[J].Pure and Applied Chemistry,1988,60:1107-1114. |
[14] | Mohamed Aoudia;Gongzhen Cheng;Vance O. Kennedy .Synthesis of a Series of Octabutoxy- and Octabutoxybenzophthalocyanines and Photophysical Properties of Two Members of the Series[J].Journal of the American Chemical Society,1997(26):6029-6039. |
[15] | Liu Y;Liu M S;Jen A K Y .Synthesis and characterization of a novel and highly efficient light-emitting polymer[J].Acta Polymerica,1999,50:105-108. |
[16] | Schwartz G;Reineke S;Rosenow T C et al.Triplet harvesting in hybrid white organic light-emitting diodes[J].Advanced Functional Materials,2009,19:1319. |
[17] | 陈金鑫;黄孝文.OLED有机电致发光材料与器件[M].北京:清华大学出版社,2007:20-21. |
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