发光学报, 2017, 38 (4): 487, 网络出版: 2017-05-03   

高效率的蓝色磷光有机电致发光器件

Highly Efficient Blue Organic Light-emitting Diodes
作者单位
1 温州医科大学 眼视光学院, 生物医学工程学院, 浙江 温州 325035
2 集成光电子学国家重点联合实验室 吉林大学电子科学与工程学院, 吉林 长春 130012
摘要
制备了基于双母体结构的高效率蓝色磷光有机电致发光器件。通过与采用单母体结构和双发光层结构的器件性能进行对比, 发现双母体结构的应用对蓝光器件的性能起到了明显的提升作用。双母体蓝光器件的最大效率为14.9 cd/A (13.3 lm/W), 最大亮度达到10 440 cd/m2, 其开启电压仅为2.7 V。蓝光器件同时展示出低的效率滚降特性, 在100~5 000 cd/m2范围内, 器件的效率滚降仅为35.3%。在3~8 V的电压变化内, 器件的色坐标一直位于蓝光区域。
Abstract
Highly efficient blue organic light-emitting diodes based on mixed host structure were successfully fabricated. Two blue devices with structure of single host and double emission layers were fabricated as comparison. It is showed that the employment of mixed host structure can enhance the performance of blue device obviously. The mixed host blue OLED with low turn on voltage of only 2.7 V shows maximum efficiencies of 14.9 cd/A (13.3 lm/W) and maximum luminance of 10 440 cd/m2. Moreover, this blue device also shows very low efficiency roll-off. The current efficiency only drops 35.3% from the luminance of 100 cd/m2 to 5 000 cd/m2.
参考文献

[1] POPE M, KALLMANN H P, MAGNANTE P. Electroluminescence in organic crystals [J]. J. Chem. Phys., 1963, 38(8):2042-2043.

[2] TANG C W, VANSLYKE S A. Organic electroluminescent diodes [J]. Appl. Phys. Lett., 1987, 51(12):913-915.

[3] BURROUGHES J H, BRADLEY D D C, Brown A R, et al.. Light-emitting diodes based on conjugated polymers [J]. Nature, 1990, 347(6293):539-541.

[4] GUSTAFSSON G, CAO Y, TREACY G M, et al.. Flexible light-emitting diodes made from soluble conducting polymers [J]. Nature, 1992, 357(6378):477-479.

[5] SASABE H, KIDO J. Development of high performance OLEDs for general lighting [J]. J. Mater. Chem. C., 2013, 1:1699-1707.

[6] MENG L, MENG Q, WANG H, et al.. White organic light emitting diodes based on a yellow thermally activated delayed fluorescent emitter and blue fluorescent emitter [J]. RSC Adv., 2015, 5:59137-59141.

[7] SUN Y, GIEBINK N C, KANNO H, et al.. Management of singlet and triplet excitons for efficient white organic light-emitting devices [J]. Nature, 2006, 440:908-912.

[8] SCHWARTZ G, PFEIFFER M, REINEKE S, et al.. Harvesting triplet excitons from fluorescent blue emitters in white organic light-emitting diodes [J]. Adv. Mater., 2007, 19:3672-3676.

[9] GUO L Y, ZHANG X L. Non-interlayer and color stable WOLEDs with mixed host and incorporating a new orang phosphorescent iridium complex [J]. Org. Electron., 2014, 15:2964-2970.

[10] WANG Q, DING J, MA D, et al.. Manipulating charges and excitons within a single-host system to accomplish efficiency/CRI/color-stability trade-off for high-performance OWLEDs [J]. Adv. Mater., 2009, 21:2397-2401.

[11] CHEN P, XIE W, LI J, et al.. White organic light-emitting devices with a bipolar transport layer between blue fluorescent and orange phosphorescent emitting layers [J]. Appl. Phys. Lett., 2007, 91:023505.

[12] WANG Q, DING J, MA D, 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, 19:84-95.

[13] WANG Q, MA D. Management of charges and excitons for high-performance white organic light-emitting diodes [J]. Chem. Soc. Rev., 2010, 39:2387-2398.

[14] LEE J, LEE J I, LEE J W, et al.. Effects of charge balance on device performances in deep blue phosphorescent organic light-emitting diodes [J]. Org. Electron., 2010, 11:1159-1164.

[15] PARKA Y, SEOKA C H, LEEB J H, et al.. New blue emitting indenopyrazine derivatives for OLEDs: improving the EL properties through substitution effects by using terphenyl side group [J]. Synth. Met., 2010,160:845-848.

[16] QIA Q, WUA X, HUA Y, et al.. Enhancement of performance for blue organic light emitting devices based on double emission layers [J]. Org. Electron., 2010, 11:503-507.

[17] WETTACHA H, JESTERA S S, COLSMANNB A, et al.. Deep blue organic light-emitting diodes based on triphenylenes [J]. Synth. Met., 2010, 160:691-700.

[18] 刘春玲, 侯雪怡, 孙继芳. MgF2缓冲层对蓝光OLED性能的影响 [J]. 光电子 ·激光, 2014, 25(7):1269-1273.

    LIU C L, HOU X Y, SUN J F. Effects of the MgF2 buffer layer on the properties of blue organic light-emitting diodes [J]. J. Optoelectronics·Laser, 2014, 25(7):1269-1273. (in Chinese)

[19] 姚冠新, 韩强, 姜文龙, 等. 基于N-BDAVBi的非掺杂高效蓝色OLEDs [J]. 吉林大学学报(理学版), 2011, 49(4):760-763.

    YAO G X, HAN Q, JIANG W L, et al.. High efficient undoped blue organic light-emitting devices based on N-BDAVBi [J]. J. Jilin Univ. (Sci. Ed.), 2011, 49(4):760-763. (in Chinese)

[20] LIN H P, ZHOU F, ZHANG X W, et al.. Efficient hole injection in blue organic light-emitting devices by using a double hole injection layer to improve chromaticity and electrical characteristics [J]. Curr. Appl. Phys., 2011, 11:853-859.

祖洁, 陈平, 盛任, 王勤美. 高效率的蓝色磷光有机电致发光器件[J]. 发光学报, 2017, 38(4): 487. ZU Jie, CHEN Ping, SHENG Ren, WANG Qin-mei. Highly Efficient Blue Organic Light-emitting Diodes[J]. Chinese Journal of Luminescence, 2017, 38(4): 487.

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