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Organic Electroluminescent Characteristics of Compound PS∶NPBHole Transporting Layer

Suo Fan, Yu Junsheng, Deng Jing, Lou Shuangling and Jiang Yadong

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Abstract: Green organic light-emitting devices with the structure of indium-tin-oxide (ITO)/polystyrene(PS)∶N,N’-bis-(3-naphthyl)-N,N’-biphenyl-(1,1’-biphenyl)-4,4’-diamine (NPB)/tris-(8-hydroxyquinoline)-aluminum (Alq3)/Mg∶Ag were fabricated.A doping system consisting of small-molecular hole transporting material NPB and polymeric matrix polystyrene (PS) was employed as the compound hole transporting layer (HTL),and the thin film preparation was simplified via the spin-coating technique.By adjusting the component ratio of the system,we constructed several devices with different concentration proportions of PS∶NPB.The electroluminescent characteristics of the devices were investigated and discussed.The results demonstrate that the doping concentration of NPB has a remarkable impact on the optoelectric performance of both the HTL and the device.Optimum device performance could be obtained by choosing the best concentration proportion of PS∶NPB to be 1∶1.This contributes to the construction of compound functional layers of OLED devices and to the technical improvement.

Key words: organic light-emitting devicepolystyrenecompound hole transporting layerdevice performance

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    Received: 18 August 2015 Revised: 11 April 2007 Online: Published: 01 August 2007

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      Suo Fan, Yu Junsheng, Deng Jing, Lou Shuangling, Jiang Yadong. Organic Electroluminescent Characteristics of Compound PS∶NPBHole Transporting Layer[J]. Journal of Semiconductors, 2007, In Press. Suo F, Yu J S, Deng J, Lou S L, Jiang Y D. Organic Electroluminescent Characteristics of Compound PS∶NPBHole Transporting Layer[J]. Chin. J. Semicond., 2007, 28(8): 1232.Export: BibTex EndNote
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      Suo Fan, Yu Junsheng, Deng Jing, Lou Shuangling, Jiang Yadong. Organic Electroluminescent Characteristics of Compound PS∶NPBHole Transporting Layer[J]. Journal of Semiconductors, 2007, In Press.

      Suo F, Yu J S, Deng J, Lou S L, Jiang Y D. Organic Electroluminescent Characteristics of Compound PS∶NPBHole Transporting Layer[J]. Chin. J. Semicond., 2007, 28(8): 1232.
      Export: BibTex EndNote

      Organic Electroluminescent Characteristics of Compound PS∶NPBHole Transporting Layer

      • Received Date: 2015-08-18
      • Accepted Date: 2006-11-28
      • Revised Date: 2007-04-11
      • Published Date: 2007-08-08

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