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High-efficiency Simple Structure White Organic Light-emitting Devices Based on Rubrene Ultrathin Layer

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Abstract

White organic light-emitting devices (WOLEDs) were fabricated with an ultrathin layer of rubrene inserted between NPB and TPBI. With a simple three-layer structure of ITO/NPB(50  nm)/rubrene(0.1 nm)/TPBI(50  nm)/LiF/Al, a white light with CIE coordinates of (0.31, 0.30) were generated. The device gave a maximum luminance efficiency of 2.04  lm/W at 5 V. Furthermore, with a multilayer structure of ITO/m-MTDATA(30  nm)/NPB(20  nm)/rubrene(0.1  nm)/TPBI(40  nm)/Alq3(10  nm)/LiF/Al, the device reached a maximum luminance efficiency of 4.29  lm/W at 4  V and the luminance could exceed 10 000  cd/m2 at 10  V.

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Authors and Affiliations

  1. National Laboratory of Integrated Optoelectronics, Jilin University, Changchun, 130012, China

    Wenfa Xie, Meng Meng, Chuannan Li, Yi Zhao & Shiyong Liu

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  1. Wenfa Xie
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  2. Meng Meng
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  3. Chuannan Li
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  4. Yi Zhao
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  5. Shiyong Liu
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Correspondence to Wenfa Xie.

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Xie, W., Meng, M., Li, C. et al. High-efficiency Simple Structure White Organic Light-emitting Devices Based on Rubrene Ultrathin Layer. Opt Quant Electron 37, 943–948 (2005). https://doi.org/10.1007/s11082-005-7678-4

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  • DOI: https://doi.org/10.1007/s11082-005-7678-4

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