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1. 太原理工大学 新材料工程技术研究中心,山西 太原,030024
2. 太原理工大学 新材料界面科学与工程教育部重点实验室,山西 太原,030024
纸质出版日期:2015-2-3,
收稿日期:2014-9-28,
修回日期:2014-12-8,
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李菀丽, 武聪伶, 苗艳勤等. 二氧化钛改性8-羟基喹啉铝对有机电致发光器件抗老化性能的提高[J]. 发光学报, 2015,36(2): 219-224
LI Wan-li, WU Cong-ling, MIAO Yan-qin etc. TiO<sub>2</sub> Doped Alq<sub>3</sub> as Emitting Layer to Improve The Anti-aging Performance of OLED[J]. Chinese Journal of Luminescence, 2015,36(2): 219-224
李菀丽, 武聪伶, 苗艳勤等. 二氧化钛改性8-羟基喹啉铝对有机电致发光器件抗老化性能的提高[J]. 发光学报, 2015,36(2): 219-224 DOI: 10.3788/fgxb20153602.0219.
LI Wan-li, WU Cong-ling, MIAO Yan-qin etc. TiO<sub>2</sub> Doped Alq<sub>3</sub> as Emitting Layer to Improve The Anti-aging Performance of OLED[J]. Chinese Journal of Luminescence, 2015,36(2): 219-224 DOI: 10.3788/fgxb20153602.0219.
以二氧化钛改性8-羟基喹啉铝复合材料(TiO
2
-Alq
3
)为发光层制备了有机电致发光器件(OLED).在器件未封装条件下
复合材料TiO
2
-Alq
3
制备的器件较纯Alq
3
制备的器件抗老化性能有所提高.通过化学计量比调控
当钛酸四丁酯与硫酸铝的投料比为1:10时制备的复合材料TiO
2
-Alq
3
可获得抗老化性能最优的OLED器件.在空气中老化48 h后
该器件亮度仍保持在起始亮度的89.7%
电流效率保持在起始值的76.6%
而纯Alq
3
制备的OLED器件在同样测试条件下已失活.
Composite material titanium dioxide doped tris(8-hydroxyquinoline)-aluminium (TiO
2
-Alq
3
) was applied in organic lighting emitting diodes (OLED) as emitting material. Without encapsulation
it is found that TiO
2
-Alq
3
as emitting layer in OLED exhibits significantly improved anti-aging performance than that of the pure Alq
3
-based OLED. It can be attributed to the introduced of TiO
2
which has good photochemical stability and the absorption ability in UV
etc.
The OLED with optimized anti-aging performance was obtained after tuning the molar ration of reactants tetrabutyl titanate and aluminium sulfate to 1:10. After aging 48 h in the air
the luminance and current efficiency of this optimized OLED still remained in the initial state of 89.7% and 79.6%
respectively. This work paves a new way to improve the anti-aging performance of OLED by modifying the emitting materials.
Alq3TiO2复合材料OLED抗老化
Alq3TiO2composite materialsOLEDanti-aging
Sasabe H, Nakanishi H, Watanabe Y, et al. Extremely low operating voltage green phosphorescent organic light-emitting devices [J]. Adv. Funct. Mater. , 2013, 23(44):5550-5555.
Song C L, Xu Y, Zhou H F, et al. Synthesis and properties of a novel type of red light organic electroluminescence material [J]. Chin. J. Lumin.(发光学报), 2011, 32(3):285-289 (in Chinese).
Rosselli F P, Quirino W G, Legnani C, et al. Experimental and theoretical investigation of tris-(8-hydroxy-quinolinate) aluminum (Alq3) photo degradation [J]. Org. Electron., 2009, 10(8):1417-1423.
Jing S, Wang H, Liu H H, et al. Characteristic of tandem organic light-emitting diodes with charge generation layer of LiF/Al/F4-TCNQ/NPB [J]. Chin. J. Liq. Cryst. Disp.(液晶与显示), 2014, 29(6):886-892 (in Chinese).
Guo S, Du X G, Liu X Y, et al. Graphene oxide as doping material for assembling via thermal co-evaporation with NPB and Alq3 [J]. Chin. J. Lumin.(发光学报), 2013, 34(5):595-599 (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).
Mcelvain J, Antoniadis H, Hueschen M R, et al. Formation and growth of black spots in organic light-emitting diodes [J]. J. Appl. Phys., 1996, 80(10):6002-6007.
Aziz H, Xu G. A degradation mechanism of organic light-emitting devices [J]. Synth. Met., 1996, 80:7-10.
Lin A, Zhong Y K, Fu S M. The versatile designs and optimizations for cylindrical TiO2-based scatters for solar cell anti-reflection coatings [J]. Opt. Express, 2013, 21(22):A1052-A1064.
Wu S H, Wu J L, Jia S Y, et al. Cobalt(Ⅱ) phthalocyanine-sensitized hollow Fe3O4@SiO2@TiO2 hierarchical nanostructures: Fabrication and enhanced photocatalytic properties [J]. Appl. Surf. Sci., 2013, 287:389-396.
Carp O, Huisman C L, Reller A. Photoinduced reactivity of titanium dioxide [J]. Prog. Solid State Chem., 2004, 32(1-2):33-177.
Sun X G, Li C M, Ruan L Y, et al. Ce-doped SiO2@TiO2 nanocomposite as an effective visible light photocatalyst [J]. J. Alloys Compd., 2014, 585:800-804.
Zhang Z F, Deng Z B, Lu C Z, et al. Improvement of the organic EL devices by insertion of nanometer layer TiO2 [J]. J. Optoelectron. Laser (光电子激光), 2004, 15(5):520-523 (in Chinese).
Samuneva B, Kozhukharov V, Trapalis C. Sol-gel processing of titanium-containing thin coatings [J]. J. Mater. Sci. , 1993, 28(9):2353-2360.
Sugimoto T, Okada K, Itoh H. Synthesis of uniform spindle-type titania particles by the gel-sol method [J]. J. Colloid Interf. Sci., 1997, 193(1):140-143.
Liu X Y, Guo S, Wu Y L, et al. A facile one pot synthesis of Alq3@SiO2 [J]. Acta Chim. Sinica (化学学报), 2013, 71(7):1017-1021 (in Chinese).
Zhang J P, Wang H, Zhang C, et al. Research on tris(8-hydroxyquinoline)-aluminium coated by SiO2 [J]. Funct. Marer.(功能材料), 2011, 42(S4):738-743 (in Chinese).
Leung L M, Lo W Y, So S K, et al. A high-efficiency blue emitter for small molecule-based organic light-emitting diode [J]. J. Am. Chem. Soc., 2000, 122(23):5640-5641.
Al-Asbahi B A, Jumali M H H, Yap C C, et al. Inhibition of dark quenching by TiO2 nanoparticles content in novel PFO/fluorol 7GA hybrid: A new role to improve OLED performance [J]. Chem. Phys. Lett. , 2013, 570:109-112.
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