中华医学超声杂志

应用化学 ›› 2011, Vol. 28 ›› Issue (10): 1155-1160.DOI: 10.3724/SP.J.1095.2011.00659

• 研究论文 • 上一篇    下一篇

掺杂meso-四(对葵酰氧基苯基)卟啉铂的饱和红色聚合物发光器件

骆开均1*,蒋世平1,张黎芳1,朱卫国2,王欣1   

  1. (1.四川师范大学化学与材料科学学院 成都 610068；
    2.湘潭大学化学学院 湘潭)
  • 收稿日期:2010-11-05 修回日期:2010-12-17 出版日期:2011-10-10 发布日期:2011-10-10
  • 通讯作者: 骆开均，教授; Tel/Fax:028-84760802; E-mail:luo-k-j007@163.com; 研究方向：有机功能材料
  • 基金资助:
    国家自然科学基金(20472060和21072141)资助项目，四川省教育厅应用基础项目（08ZA040）

Saturated red polymer electrophosphorescent devices with meso-tetrakis (4-n-decanoyl-phenyl) porphyrin platinum (Ⅱ) complex as emitters

LUO Kaijun1*, JIANG Shiping1, ZHANG Lifang1, ZHU Weiguo2, WANG Xin1   

  1. (1.College of Chemistry and Materials,Sichuan Normal University,Chengdu 610068;
    2.College of Chemistry,Xiangtan University,Xiangtan)
  • Received:2010-11-05 Revised:2010-12-17 Published:2011-10-10 Online:2011-10-10

PDF

1755

被引次数

6 | 2

摘要：

在聚2,7-(9,9-二辛基)芴(PFO)和30%的2-(对联苯基)-5-(对叔丁基苯基)-1,3,4-噁二唑(PBD)主体材料中掺杂短磷光寿命的meso-四(对正葵酰氧基苯基)卟啉铂（TDPPPt），制成聚合物基发光器件。 器件结构为：ITO/PEDOT∶PSS/PVK/PFO+30%PBD∶TDPPPt/Ca/Al（ITO:氧化铟锡；PEDOT:聚3,4-乙撑二氧噻吩；PSS：聚苯乙烯磺酸盐；PVK：聚乙烯基咔唑）。 当客体掺杂浓度≥3%时，器件给出饱和的红色发射。 当驱动电压从7 V升高至14 V时，器件发光色度保持不变，CIE(国际发光照明委员会)色坐标稳定在(0.66,0.28）左右。 器件的最大亮度和电流效率分别为1.390 cd/m2和1.34 cd/A。 在电流密度100×10-3和150×10-3 A/cm2时，电流效率分别为1.18和0.99 cd/A，器件在高电流密度下具有良好的稳定性。

关键词: 四(对葵酰氧基苯基)卟啉铂, 聚合物磷光器件, 磷光寿命

Abstract:

The saturated red polymer electrophosphorescent devices have been fabricated. With the device structures of ITO/PEDOT∶PSS/PVK/PFO+30%PBD∶TDPPPt/Ca/Al(ITO:indium tin oxide, PEDOT: poly(3,4-ethylenedioxythiophene), PSS:poly(styrenesulfonate), PVK:poly-N-vinyl carbazole), based on short lifetime meso-tetrakis(4-n-decanoyl-phenyl) porphyrin platinum(Ⅱ) complex(TDPPPt) and poly(2,7-9,9-dioctylfluorene)(PFO) in which 30% 2-(bi-phenyl-4-yl)-5-(4-tert-butylphenyl)-1,3,4-oxadiazole(PBD) was doped. The saturated red emission is obtained when doping concentration of TDPPPt is 3%~10%. The CIE(Commission Internationale de L′Eclairage) coordinates of the device is about at (0.66, 0.28) and unchangeable when driven voltage increases from 7 V to 14 V. The maximum luminance and luminance efficiency(ηl) is 1.390 cd/m2 at 18 V and 1.34 cd/A at 18×10-3 A/cm2, respectively. Furthermore, the devices show excellent stability under high driven current density. ηl only drops to 88% and 73% of maximum efficiency at 100×10-3 A/cm2, and 150×10-3 A/cm2, respectively. We tentatively attribute excellent devices stability under high driven current density to the short radiative lifetime that avoids triplet-triple annihilation.

Key words: meso-tetrakis (4-n-decanoyl-phenyl) porphyrin platinum(Ⅱ), Polymer Electrophosphorescent Devices, lifetime of phosphorscence

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