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1. 昆明理工大学 材料科学与工程学院,云南 昆明,650093
2. 昆明贵金属研究所 稀贵金属综合利用新技术国家重点实验室, 云南 昆明 650106
3. 北京大学 化学与分子工程学院 北京,100871
4. 云南大学 物理科学技术学院,云南 昆明,650091
纸质出版日期:2015-12-10,
收稿日期:2015-8-13,
修回日期:2015-9-23,
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常桥稳, 刘志伟, 王登科等. 磷光铱配合物的纯度对其电致发光性能的影响[J]. 发光学报, 2015,36(12): 1396-1401
CHANG Qiao-wen, LIU Zhi-wei, WANG Deng-ke etc. Effect of Purity on Electroluminescent Performance of Phosphorescent Iridium Complexes[J]. Chinese Journal of Luminescence, 2015,36(12): 1396-1401
常桥稳, 刘志伟, 王登科等. 磷光铱配合物的纯度对其电致发光性能的影响[J]. 发光学报, 2015,36(12): 1396-1401 DOI: 10.3788/fgxb20153612.1396.
CHANG Qiao-wen, LIU Zhi-wei, WANG Deng-ke etc. Effect of Purity on Electroluminescent Performance of Phosphorescent Iridium Complexes[J]. Chinese Journal of Luminescence, 2015,36(12): 1396-1401 DOI: 10.3788/fgxb20153612.1396.
采用不同的真空热梯度升华条件
获得了不同纯度的乙酰丙酮酸二(2-苯基吡啶)铱Ir(ppy)
2
(acac)。以不同纯度Ir(ppy)
2
(acac)为客体材料
制备了结构为ITO:MoO
3
/CBP/CBP:Ir(ppy)
2
(acac)/TPBi/LiF:Al的有机发光二极管(OLEDs)
其中CBP和TPBi分别是4
4'-二(9-咔唑)联苯和1
3
5-三(1-苯基-1H-苯并咪唑-2-基)苯。评价了不同纯度磷光铱配合物制备的器件的电致发光性能
探索了磷光铱配合物纯度对器件性能的影响。结果表明:Ir(ppy)
2
(acac)升华后可以提高器件的稳定性
纯度高的材料可以在较低的掺杂浓度下获得较高的发光效率。
Ir(ppy)
2
(acac) with different purity levels were obtained by adopting various thermal gradient vacuum sublimation conditions
and were used as phosphorescence dopants in OLEDs with a structure of ITO:MoO
3
/CBP/CBP:Ir(ppy)
2
(acac)/TPBi/LiF/Al
where CBP and TPBi were the abbreviations of 4
4'-N
N'-dicarbazole-biphenyl and 1
3
5-tris(N-phenylbenzimidazole-2-yl) benzene
respectively. The electroluminescent performances of Ir(ppy)
2
(acac) were evaluated and the effect of purity levels was explored. The results indicate that sublimation improves electroluminescent stability of the device
and a higher purity level endows the device with greater electroluminescent efficiency even at a low doping concentration.
磷光铱配合物纯度电致发光性能OLED影响
phosphorescent iridium complexpurityelectroluminescent performanceOLEDeffect
Reineke S, Lindner F, Schwartz G, et al. White organic light-emitting diodes with fluorescent tube efficiency [J]. Nature, 2009, 459:234-238.
Baldo M A, Obrien D F, You Y, et al. Highly efficient phosphorescent emission from organic electroluminescent devices [J]. Nature, 1998, 395:151-154.
Ma Y G, Zhang H Y, Shen J C, et al. Electroluminescence from triplet metal-ligand charge-transfer excited state of transition metal complexes [J]. Synth. Met., 1998, 94(3):245-248.
Fan C, Yang C L. Yellow/orange emissive heavy-metal complexes as phosphors in monochromatic and white organic light-emitting devices [J]. Chem. Soc. Rev., 2014, 43(17):6439-6469.
Yang C L, Zhang X W, You H, et al. Tuning the energy level, photophysical and electroluminescent properties of heavy metal complexes by controlling the ligation of metal with carbon of carbazole unit [J]. Adv. Funct. Mater., 2007, 17:651-661.
Helander M G, Wang Z B, Qiu J, et al. Chlorinated indium tin oxide electrodes with high work function for organic device compatibility [J]. Science, 2011, 332:944-947.
Li C Y, Ge G P, Liang H Z, et al. Crystal structure and photophysical properties of iridium(Ⅲ) complex based on 2-(2,4-difluorophenyl)-pyrimidine and acetylacetone ligands [J]. Chin. J. Lumin.(发光学报), 2014, 35(5):571-577 (in Chinese).
Chang Q W, Cui H, Yan C X, et al. The effect of structure of -diketonate ligand on the luminous performance of platinum group metals phosphorescent complex [J]. Precious Metals (贵金属), 2014, 35(3):88-93 (in Chinese).
Li H Y, Zhang Y X, Zhang H K, 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).
Lu Q, Chen B Y, Yang W Q, et al. Improved efficiency and its roll-off of organic light-emitting diodes with double electron transport layers [J]. Chin. J. Lumin.(发光学报), 2015, 36(9):1053-1058 (in Chinese).
Zhang M L, Zhang F H, Zhang W, et al. Luminance performances of phosphorescent organic light-emitting diodes based on different Ir(ppy)2acac doping [J]. Chin. J. Liq. Cryst. Disp.(液晶与显示), 2014, 29(3):328-332 (in Chinese).
Chen J, Wang Q S. Recent progress of infrared upconversion device based on the integration of OLED [J]. Chin. Opt.(中国光学), 2015, 8(1):17-27 (in Chinese).
Huang J, Zhang F H, Zhang W. Regulation of carrier in double organic electroluminescent phosphorescent emitting layer (green and red) [J]. Chin. J. Liq. Cryst. Disp.(液晶与显示), 2014, 29(1):22-27 (in Chinese).
Zheng F, Liu L Y, Liu X X, et al. Control of correlated color temperature for multi-primary color LED illumination [J]. Opt. Precision Eng.(光学 精密工程), 2015, 23(4):926-933 (in Chinese).
Hu J T, Zong Y F, Deng Y F, et al. Solution processible SimCP:FIrpic doped blue phosphorescent devices [J]. Chin. J. Liq. Cryst. Disp.(液晶与显示), 2015, 30(2):240-245 (in Chinese).
Liu Z W, Bian Z Q, Huang C H. Luminescent iridium complexes and their applications [J]. Top Organomet. Chem., 2010, 28:113-142.
Liu Z W, Nie D B, Bian Z Q, et al. Photophysical properties of heteroleptic iridium complexes containing carbazole-functionalized -diketonates [J]. Chem. Phys. Chem., 2008, 9:634-640.
Liu Z W, Guan M, Bian Z Q, et al. Red phosphorescent iridium complex containing carbazole-functionalized -diketonate for highly efficient Nondoped organic light-emitting diodes [J]. Adv. Funct. Mater., 2006, 16:1441-1448.
Liu Z W, Bian Z Q, Hao F, et al. Highly efficient, orange-red organic light-emitting diodes using a series of green-emission iridium complexes as hosts [J]. Org. Electron., 2009, 10:247-255.
Lamansky S, Djurovich P, Murphy D, et al. Synthesis and characterization of phosphorescent cyclometalated iridium complexes [J]. Inorg. Chem., 2001, 40:1704-1711.
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., 2001, 123:4304-4312.
Gu X, Fei T, Zhang H Y, et al. Tuning the emission color of iridium(Ⅲ) complexes with ancillary ligands: A combined experimental and theoretical study [J]. Eur. J. Inorg. Chem., 2009, 16:2407-2414.
Huang C H, Li F Y, Huang W. Introduction to Organic Light-emitting Materials and Devices [M]. Shanghai: Fudan University Press, 2005:81-82 (in Chinese).
Yan C X, Li Y, Chang Q W, et al. Batch synthesis, characterization and light-physical properties of bis(2-phenylpyridine) (acetylacetonate) iridium(Ⅲ) [J]. Chin. J. Rare Met.(稀有金属), 2015, 39(2):144-151 (in Chinese).
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