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西安瑞联近代电子材料有限责任公司,陕西 西安,710077
收稿日期:2011-10-14,
修回日期:2011-11-13,
网络出版日期:2012-01-10,
纸质出版日期:2012-01-10
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孙军, 张玉祥, 席敏, 薛震, 张宏科, 何海晓. 基于咪唑并吡啶类配体新型磷光材料的合成与表征[J]. 发光学报, 2012,33(1): 41-44
SUN Jun, ZHANG Yu-xiang, XI Min, XUE Zhen, ZHANG Hong-ke, HE Hai-xiao. Synthesis and Characterization of A New Framework Imidazo[1,2-a]pyridine Phosphorescent Ir(Ⅲ) Complexes[J]. 发光学报, 2012,33(1): 41-44
孙军, 张玉祥, 席敏, 薛震, 张宏科, 何海晓. 基于咪唑并吡啶类配体新型磷光材料的合成与表征[J]. 发光学报, 2012,33(1): 41-44 DOI: 10.3788/fgxb20123301.0041.
SUN Jun, ZHANG Yu-xiang, XI Min, XUE Zhen, ZHANG Hong-ke, HE Hai-xiao. Synthesis and Characterization of A New Framework Imidazo[1,2-a]pyridine Phosphorescent Ir(Ⅲ) Complexes[J]. 发光学报, 2012,33(1): 41-44 DOI: 10.3788/fgxb20123301.0041.
设计开发了系列新型咪唑并吡啶类铱(Ⅲ)配合物(BIPy)
2
Ir(acac)、(PIPy)
2
Ir(acac)、 (4'-MPIPy)
2
-Ir(acac)。在化合物Ⅲ中
当
R
=Ph时得到(BIPy)
2
Ir(acac)材料
其中BIPy和acac分别表示2-(4-联苯基)咪唑并吡啶和乙酰丙酮。将(BIPy)
2
Ir(acac)掺杂在N
N'-二咔唑-(1
1'-联苯)-4
4'-二胺(CBP)中制备了高效OLEDs器件
器件的最大电流效率为26.7 cd/A
最大亮度为18 000 cd/cm
2
色坐标为(0.32
0.60)
是首次报道的新型苯基咪唑并吡啶类铱(Ⅲ)配合物绿色磷光材料。
Three iridium(Ⅲ) containing imidazo[1
2-a]pyridine complexes (PIPy)
2
Ir(acac)
(4'-MPIPy)
2
Ir(acac)
(BIPy)
2
Ir(acac) were synthesized based on reaction of iridium trichloride hydrate
2-Biphenyl-4-yl-imidazo[1
2-a]pyridine with acetylacetone. Doping multiplayer OLEDs were respectively fabricated based on (BIPy)
2
Ir(acac) with electron transporting ability. The doping device showed strong saturated green electrophosphorescent emission
the emission peak wavelength 516 nm and brightness of 18 000 cd/m
2
current efficiency of 26.7 cd/A with Commission International de L'Eclairage(CIE) coordinates of (0.32
0.60). This is the first report on new green phosphorescent material based on Ir(Ⅲ) complex.
Baldo M A, O'Brien D F, You Y, et al. Highly efficient phosphorescent emission from organic electroluminescent devices [J]. Nature, 1998, 395(6698):151-154.[2] Baldo M A, Lamanskv S, Burrows P, et al. Very high-efficiency green organic light-emitting devices based on electrophosphorescence [J]. Appl. Phys. Lett., 1999, 75(1):4-7.[3] Wong Waiyeung, Ho Cheuklam, Gao Zhiqiang, et al. Multifunctional iridium complexes based on carbazole modules as highly efficient electrophosphors [J]. Angew. Chem., 2006, 118(46):7964-7967.[4] Lamansky S, Djurovich P, Murphy D, et al. Highly phosphorescent bis-cyclometalated iridium complexes: synthesis, photophysical charcterization, and use in organic light emitting diodes [J]. J. Am. Chem.Soc., 2001, 123(18):4304-4312.[5] Sun Jun, Zhang Yuxiang, Hu Lingfeng, et al. Performances of electroluminescence based on new framework phosphorescent Ir(Ⅲ) complex [J]. Chin. J. Liquid Crystal and Displays (液晶与显示), 2010, 25(3):360-363 (in Chinese).[6] Li Hongyan, Zhang Yuxiang, Zhang Hongke, et al. Effect of a series of host material on optoelectronic performance of red phosphorescent OLED [J]. Chin. J. Lumin.(发光学报), 2009, 30(5):585-589 (in Chinese).[7] Sun Jun, Zhang Yuxiang, Mei Xueyi, et al. Highly efficient blue phosphorescent OLEDs based on 1,3,5-tri(9H-carbazol-9-yl)benzene host material [J]. Chin. J. Lumin.(发光学报), 2011, 32(6):581-586 (in Chinese).[8] Lee Jonghee, Lee Jeongik, Lee Junyeob, et al. Enhanced efficiency and reduced roll-off in blue and white phosphorescent organic light-emitting diodes with a mixed host structure [J]. Appl. Phys. Lett., 2009, 94(19):193305-1-3.[9] Lee Jonghee, Lee Jeongik, Lee Junyeob, et al. Improved performance of blue phosphorescent organic light-emitting diodes with a mixed host system [J]. Appl. Phys. Lett., 2009, 95(25):253304-1-3.[10] Wang Qi, Ding Junqiao, Ma Dongge, et al. Harvesting excitons via two parallel channels for efficient white organic LEDs with nearly 100% internal quantum efficiency: fabrication and emission-mechanism analysis [J]. Adv. Funct. Mater.,2009, 19(1):84-95.[11] Yang Dongfang, Li Wenlian, Chu Bei, et al. High efficiency electrophosphorescence device using a thin cleaving layer in an Ir-complex doped emitter layer [J]. Appl. Phys. Lett., 2008, 92(25):253309-1-3.[12] Wu Zhaoxin, Wang Liduo, Lei Gangtie, et al. Investigation of the spectra of phosphorescent organic light-emitting devices in relation to emission zone [J]. Appl. Phys. Lett., 2005, 97(10):103105-1-3.
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