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首页> 外文期刊>Journal of Physics, D. Applied Physics: A Europhysics Journal >White-emitting organic diode with a doped blocking layer between hole- and electron-transporting layers
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White-emitting organic diode with a doped blocking layer between hole- and electron-transporting layers

机译：白色发光有机二极管，在空穴传输层和电子传输层之间具有掺杂的阻挡层

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摘要

A new white-emitting organic diode was realized simply by inserting a doped hole-blocking layer between the hole-transporting layer (HTL) and the electron-transporting layer (ETL). The structure of this device is ITO/CuPc/NPB/blocking layer:rubrene/Alq/MgAg. Copper phthalocyanine (CuPc) was used as a buffer layer; N,N'-bis-(1-naphthyl)-N,N'-diphenyl-1.1'-biphenyl-4-4'-diamine (NPB) was the HTL; the tris(8-quinolinolato)aluminium complex (Alq) was the ETL; and the trimer of N-arylbenzimidazole (TPBi), 2-(4-biphenylyl-5-(4-tertbutylphenyl)-1,2,3-oxadiazole (PBD) or the 1,2,4-triazole derivative (TAZ) were used as the blocking layers, in which rubrene is doped. The emission spectrum of this device covers a wide range of the visible region and can be sensitively adjusted by the concentration of rubrene. The white emission with CIE (Commission international de l'Eclairage) coordinates x = 0.31, y = 0.32, a maximum luminance of 8635 cd m(-2) and maximum luminous efficiency 1.39 lm w(-1) (4.9 V) were obtained in the device with a concentration of 1.5% rubrene in TPBi. [References: 10]
机译：只需在空穴传输层（HTL）和电子传输层（ETL）之间插入掺杂的空穴阻挡层，即可实现一种新的发白光有机二极管。该器件的结构为ITO / CuPc / NPB /阻挡层：鲁宾/ Alq / MgAg。酞菁铜（CuPc）用作缓冲层; N，N′-双-（1-萘基）-N，N′-二苯基-1.1′-联苯-4-4′-二胺（NPB）为HTL。三（8-喹啉基脲）铝配合物（Alq）为ETL; N-芳基苯并咪唑（TPBi），2-（4-联苯基-5-（4-叔丁基苯基）-1,2,3-恶二唑（PBD）或1,2,4-三唑衍生物（TAZ）的三聚体分别为用作掺杂红荧烯的阻挡层。该器件的发射光谱覆盖可见光范围广，可以通过红荧烯的浓度进行灵敏地调节。CIE（国际照明委员会）的白光发射坐标x = 0.31，y = 0.32，在TPBi中浓度为1.5％的re中，获得的最大亮度为8635 cd m（-2），最大发光效率为1.39 lm w（-1）（4.9 V）。 [参考：10]

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