发光学报, 2018, 39 (7): 955, 网络出版: 2018-08-30   

电子主体材料对蓝光OLED的影响

Effects of Host and Electron Transport Materials on Blue Organic Light-emitting Diodes
作者单位
重庆邮电大学 光电工程学院, 重庆 400065
摘要
基于ITO/MoO3/NPB/TCTA/FIrpic∶TCTA/FIrpic∶X/Y/LiF/Al结构, 研究了主体材料的能级和三线态激子, 以及电子传输材料的能级对器件性能的影响。研究发现, X与Y分别为TmPyPb与TPBI的双发光层蓝光器件的性能最优, 最大发光效率达到了23.78 cd/A。研究表明, 电子主体材料可以调节激子分布, 影响能量转移。
Abstract
The effects of the host materials and electron transport materials on the blue organic light-emitting diodes was studied by researching the effects of energy level and triplet exciton on the performance of devices based on the structure of ITO/MoO3/NPB/TCTA/FIrpic∶TCTA/FIrpic∶X/Y/LiF/Al. The high quality double emission layers device with the peak efficiency of 23.78 cd/A was obtained when X and Y are TmPyPb and TPBI. The results showed that the distribution of exciton and energy transfer can be adjusted and influenced by host materials and electron transport materials.
参考文献

[1] 王振, 陈双文, 周翔. 高效率有机蓝光和白光电致发光器件 [J]. 发光学报, 2011, 32(7):715-719.

    WANG Z, CHEN S W, ZHOU X. Study on efficient blue and white organic light-emitting devices [J]. Chin. J. Lumin, 2011, 32(7):715-719. (in Chinese)

[2] GANG C, TUNG C K, PONG T W, et al.. Color tunable organic light-emitting devices with external quantum efficiency over 20% based on strongly luminescent gold(Ⅲ) complexes having long-lived emissive excited states [J]. Adv. Mater., 2014, 26(16):2540-2546.

[3] UDAGAWA K, SASABE H, CAI C, et al.. Low-driving-voltage blue phosphorescent organic light-emitting devices with external quantum efficiency of 30% [J]. Adv. Mater., 2014, 26(29):5062-5066.

[4] CHEN D, ZHOU H, LI X, et al.. Solution-processed cathode-interlayer-free deep blue organic light-emitting diodes [J]. Org. Electron., 2014, 15(6):1197-1204.

[5] YONG H C, JEON Y P, DONG C C, et al.. Enhancement of out-coupling efficiency due to anorganic scattering layer in organic light-emitting devices [J]. Org. Electron., 2015, 22:197-201.

[6] KIM G H, LAMPANDE R,KONG J H, et al.. New bipolar host materials for high performance of phosphorescent green organic light-emitting diodes [J]. RSC Adv., 2015, 5:31282-31291.

[7] WANG K, GAO Z, MIAO Y, et al.. Improved color stability of complementary WOLED with symmetrical doped phosphors in single host: experimental verification and mechanism analysis [J]. RSC Adv., 2017, 7(54):33782-33788.

[8] 张朝, 郭坤平, 林洋, 等. 独立寻址的色温可调白光有机电致发光二极管 [J]. 光学学报, 2014, 34(10):1023002.

    ZHANG C, GUO K P, LIN Y, et al.. Individually addressable color-tuning white organic light-emitting diodes [J]. Acta Opt. Sinica, 2014, 34(10):1023002. (in Chinese)

[9] 赵江, 何志群, 张娇, 等. 白色有机电致发光器件中多组份电致激基复合物形成及抑制 [J]. 光学学报, 2014, 34(8):0823002.

    ZHAO J, HE Z Q, ZHANG J, et al.. Formation and suppression of multi-component exciplex in white organic light-emitting devices [J]. Acta Opt. Sinica, 2014, 34(8):0823002. (in Chinese)

[10] MIN Y K, LEE J H, JI G J. Fabrication and characterization of high luminance WOLED using single host and three color dopants [J]. Korean J. Mater. Res., 2016, 26(3):117-122.

[11] LI X L, XIE G, LIU M, et al.. High-efficiency WOLEDs with high color-rendering index based on a chromaticity-adjustable yellow thermally activated delayed fluorescence emitter [J]. Adv. Mater., 2016, 28(23):4614.

[12] WU Z, YU L, ZHOU X, et al.. Management of singlet and triplet excitons:a universal approach to high-efficiency all fluorescent WOLEDs with reduced efficiency roll-off using a conventional fluorescent emitter [J]. Adv. Opt. Mater., 2016, 4(7):1067-1074.

[13] ZHANG Z, CHEN Y A, HUNG W Y, et al.. Control of the reversibility of excited-state intramolecular proton transfer (ESIPT) reaction; the host-polarity tuning WOLED on a new thiazolo[5,4-d]thiazole ESIPT system [J]. Chem. Mater., 2016, 28(23):8815-8824.

[14] LIU B, LI X L, TAO H, et al.. Manipulation of exciton distribution for high-performance fluorescent/phosphorescent hybrid white organic light-emitting diodes [J]. J. Mater. Chem. C, 2017, 5:7668-7683.

[15] FUKAGAWA H, WATANABE K, TSUZUKI T, et al.. Highly efficient deep-blue phosphorescent organic light emitting diodes with a double-emitting layer structure [J]. Appl. Phys. Lett., 2008, 93(13):366.

[16] LEE J H, HUANG C L, HSIAO C H, et al.. Blue phosphorescent organic light-emitting device with double emitting layer [J]. Appl. Phys. Lett., 2009, 94(22):140.

[17] BANG H S, CHOO D C, KIM T W. Luminance enhancement mechanisms for blue organic light-emitting devices utilizing a double emitting layer [J]. J. Electrochem. Soc., 2011, 158(10):J291.

[18] 王振, 甘林, 汪静静, 等. 新型有机电致磷光白光器件的研究 [J]. 发光学报, 2016, 37(6):731-736.

    WANG Z, GAN L, WANG J J, et al.. Studies on novel phosphorescent organic light-emitting devices [J]. Chin. J. Lumin., 2016, 37(6):731-736. (in Chinese)

[19] REINEKE S, SCHWARTZ G, WALZER K, et al.. Reduced efficiency roll-off in phosphorescent organic light emitting diodes by suppression of triplet-triplet annihilation [J]. Appl. Phys. Lett., 2007, 91(12):123580.

[20] KIM S H, JANG J, YOOK K S, et al.. Triplet host engineering for triplet exciton management in phosphorescent organic light-emitting diodes [J]. J. Appl. Phys., 2008, 103(5):054502.

[21] ADAMOVICH V I, CORDERO S R, DJUROVICH P I, et al.. New charge-carrier blocking materials for high efficiency OLEDs [J]. Org. Electron., 2003, 4(2-3):77-87.

[22] ADACHI C, KWONG R C, DJUROVICH P, et al.. Endothermic energy transfer: a mechanism for generating very efficient high-energy phosphorescent emission in organic materials [J]. Appl. Phys. Lett., 2001, 79(13):2082-2084.

[23] HOLMES R J, FORREST S R, TUNG Y J, et al.. Blue organic electrophosphorescence using exothermic host-guest energy transfer [J]. Appl. Phys. Lett., 2003, 82(15):2422-2424.

[24] LIU Y, GUO J, FENG J, et al.. High-performance blue electroluminescent devices based on hydroxyphenyl-pyridine beryllium complex [J]. Appl. Phys. Lett., 2001, 78(16):2300-2302.

王培, 王振, 陈爱, 谢嘉凤, 袁军, 袁素真. 电子主体材料对蓝光OLED的影响[J]. 发光学报, 2018, 39(7): 955. WANG Pei, WANG Zhen, CHEN Ai, XIE Jia-feng, YUAN Jun, YUAN Su-zhen. Effects of Host and Electron Transport Materials on Blue Organic Light-emitting Diodes[J]. Chinese Journal of Luminescence, 2018, 39(7): 955.

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