期刊文献+

高效绿色磷光有机电致发光器件 被引量:3

High-efficiency green phosphorescent organic electroluminescent device
原文传递
导出
摘要 使用绿色磷光材料GIr1作为掺杂剂,制备了基于CBP材料的一系列绿色有机电致发光器件(OLED)。其器件的结构为ITO/MoO3(50nm)/NPB(40nm)/TCTA(10nm)/CPB:GIr1(30nm,x%)/BCP(10nm)/Alq3(20nm)/LiF(1nm)/Al(100nm),其中x%为发光层客体掺杂质量分数。对7种不同的掺杂剂质量分数进行了比较,研究了它们的电致发光(EL)特性。结果显示,对发光面积为2.72cm2的器件,GIr1的最佳掺杂比为14%,器件的起亮电压为3.5V,器件的最大电流效率26.2cd/A,其相应的EL主峰位于524nm,色坐标为(0.34,0.61),得到了发光性能稳定的绿色OLED。 Abstract.Green phosphorescent organic light emitting devices (OLEDs) were fabricated by doping green phosphorescent dye Girl and with the host material CBP as the emitting layer. The structure of the de- vices is ITO/MoO3 (50 nm)/NPB(40 nm)/TCTA(10 nm)/CPB.GIrl(30 nm,x%)/BCP(10 nm)/Alq3 (20 nrn)/LiF (1 nm)/Al(100 nm) ,in which x% is the doping mass fraction of Girl. Comparing 7 kinds of different dopant mass fractions, the luminescence characteristics of the devices are investigated. It is found that the best dopant mass fraction is 14% for the device with 2.72 cm2 light-emitting area, the turn-on voltage of this device is 3.5 V and the current efficiency is 26.2 cd/A. The electroluminescent (EL) spectra show a prominent peak at 524 nm and the color coordinate is (0. 34,0. 61). We have ob- tained a green organic electroluminescent device with stable luminescent properties.
作者 张静 张方辉
出处 《光电子.激光》 EI CAS CSCD 北大核心 2012年第11期2056-2060,共5页 Journal of Optoelectronics·Laser
基金 国家自然科学基金(61076066) 陕西省科技统筹创新工程计划(2011KTCQ01-09) 陕西科技大学博士基金(BJ09-07) 陕西科技大学自然科学基金(ZX09-31)资助项目
关键词 有机发光二极管(OLED) 绿色磷光 电流效率 organic light emitting diode (OLED) green phosphorescence lcurrent efficiency
  • 相关文献

参考文献16

  • 1Tang C W, VanSlyke S A. Organic elec trolumin escent diodes[J]. Appl. Phys. Lett. ,1987,51(12) :913-915.
  • 2赵娟,于军胜,李璐,蒋亚东.(t-bt)_2Ir(acac)超薄层厚度对有机电致发光器件性能的影响[J].光电子.激光,2011,22(2):170-174. 被引量:7
  • 3Baldo M A,Lamansky S,Burrows P E,et al. Very high-efficiency green organic light-emitting devices based on electrophosphorescence[J]. Appl. Phys. Lett., 1999,75: 4-6.
  • 4HE Gu-feng, Martin Pfeiffer, Karl Leo, et al. High-efficiency and low-voltage p-i-n electrophosphorescent organic light-emitting diodes with double-emission layers[J]. Appl. Phys. Lett., 2004,85(17), 3911-3913.
  • 5Tae Jin Park, Woo Sik Jeon, Park Jung Joo, et al. Efficient simple structure red phosphorescent organic light emitting devices with narrow band-gap fluorescent host[J]. Appl. Phys. Lett. ,2008,92(11) :113308.
  • 6陈金鑫,陈锦地,吴忠帜.白光OLED照明[M].上海:上海交通大学出版社,2011.
  • 7Liu Z W,Helander M G,Wang Z B,et al. Efficient bilayer phosphorescent organic light-emitting diodes: Direct hole injection into triplet dopants[J]. Appl. Phys. Lett., 2009, 94:113305.
  • 8Adachi C, Baldo M A, Forrest S R,et al. High-efficiency organic electrophosphorescent devices with tris(2-pheny-Ipyridine) iridium doped into electron-transporting materi- als[J]. Appl. Phys. Lett. ,2000,77(6) : 904-906.
  • 9Brien D F O',Baldo M A,Thompson M E,et al. Improved energy transfer in electrophos-phorescent devices[J]. Appl. Phys. Lett. , 1999,74(3) : 442.
  • 10杨少鹏,居秀琴,赵方超,邱晓丽,王利顺,刘素玲.主客体掺杂和空穴阻挡对蓝色磷光OLED发光性能的影响研究[J].功能材料,2009,40(9):1422-1424. 被引量:5

二级参考文献99

共引文献46

同被引文献23

  • 1Hu Sunjun, Zhu Minrong, Zou Hongbin, et al. Efficient hybrid white polymer light-emitting devices with electro- luminescence covered the entire visible range and reduced efficiency roll-off[J]. Applied Physics Letters, 2012, 100 (6) :1-5.
  • 2Meng Mei,Song Wook,Kim Youhyun,et al. White organic light-emitting diodes with different order of RGB-emitting layers[J]. Molecular crystals & liquid crystals, 2012,569 (1) :125-142.
  • 3Lan Y H,Hsiao C H,Lee P Y, et al. Dopant effects in phosphorescent white organic light-emitting device with double-emitting layer[J]. Organic Electronics, 2011,12 : 756-765.
  • 4Zhang Shiming, Liu Ziyang, Wng Xuehui, et al. White or- ganic light-emitting diodes based on a yellow phosphores- cence iridium complex and a high-efficiency blue fluores- cence[J]. Thin solid films, 2013,537 (30): 221-225.
  • 5Kim Nam Ho,Kim Youhyun,Yoon Juan,et al. Color op- timization of single emissive white OLEDs via energy transfer between RGB fluorescent dopants[J]. Journal of Luminescence, 2013,143 : 723-728.
  • 6Xie Guohua, Meng Yanlong, Wu Fengmin, et al. Very low turn-on voltage and high brightness tris-(8-hydroxyquino- line) aluminum-based organic light-emitting diodes with a MoOx p-doping layer[J]. Applied Physics Letters, 2008,92 (9):3 305-3 307.
  • 7陈金鑫.黄孝文.OLED梦幻显示器--材料与器件[M].北京:人民邮电出版社,2011:74.
  • 8Hisahiro Sasabe,Naoki Toyota,Hiromi Nakanishi,Tasuku Ishizaka,Yong‐Jin Pu,Junji Kido.3,3′‐Bicarbazole‐Based Host Materials for High‐Efficiency Blue Phosphorescent OLEDs with Extremely Low Driving Voltage[J].Adv Mater.2012(24)
  • 9X. Zhu,D.-H. Lee,H. Chae,S.M. Cho.Abrupt change of luminescence spectrum in single-layer phosphorescent polymer light emitting diode[J].Journal of Luminescence.2011(1)
  • 10申霖,徐昊,叶丹琴,吴晓明,华玉林,印寿根.以BAlq为主体的高效高色纯度的红色有机电致磷光器件[J].发光学报,2008,29(1):51-55. 被引量:10

引证文献3

二级引证文献4

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部