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Laser & Optoelectronics Progress, Volume. 57, Issue 21, 212303(2020)

White Organic Light-Emitting Diodes with High Color-Rendering Index Based on Exciplex

Fu Xiang''en*, Yang Feiyu, and Tang Yu
Author Affiliations
  • 上海理工大学理学院, 上海 200093
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    AbstractGet PDF(in Chinese)
    Figures&Tables (8)
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    References (23)
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    Figures & Tables(8)
    Energy levels of materials in the experiment

    Fig. 1. Energy levels of materials in the experiment

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    Schematic of devices

    Fig. 2. Schematic of devices

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    Property curves of different devices. (a) Luminance-voltage-current density curves; (b) power efficiency-current density-current efficiency curves

    Fig. 3. Property curves of different devices. (a) Luminance-voltage-current density curves; (b) power efficiency-current density-current efficiency curves

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    Normalized EL spectra of devices A1 and A2 at voltage of 5 V

    Fig. 4. Normalized EL spectra of devices A1 and A2 at voltage of 5 V

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    Property of different devices. (a) Luminance-voltage-current density curves; (b) power efficiency-current density-current efficiency curves, the inset showing a picture of device B2 in lighted state

    Fig. 5. Property of different devices. (a) Luminance-voltage-current density curves; (b) power efficiency-current density-current efficiency curves, the inset showing a picture of device B2 in lighted state

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    Normalized EL spectra of different devices at voltage of 5 V

    Fig. 6. Normalized EL spectra of different devices at voltage of 5 V

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    Variation of CIE x and CIE y coordinates versus voltage for devices

    Fig. 7. Variation of CIE x and CIE y coordinates versus voltage for devices

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    • Table 1. Electroluminescence characteristics of different devices

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      Table 1. Electroluminescence characteristics of different devices

      DeviceCRI(5 V)CDmax /(mA·cm-2)Lmax /(cd·m-2)PEmax /(lm·W-1)CEmax /(cd·A-1)CCT(5 V)/KCIE(x,y)(5 V)CIE(x,y)(7 V)
      A164199.98332545.0739.453919(0.3814,0.3697)(0.3159,0.2936)
      A269156.50353819.8818.993378(0.4252,0.4263)(0.3842,0.3777)
      B185173.30370418.5116.213347(0.4163,0.4001)(0.3524,0.3367)
      B295182.62378516.1114.112322(0.4717,0.3818)(0.3825,0.3239)
      B372189.75410014.7612.921689(0.5265,0.3617)(0.4323,0.3191)
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    Fu Xiang''en, Yang Feiyu, Tang Yu. White Organic Light-Emitting Diodes with High Color-Rendering Index Based on Exciplex[J]. Laser & Optoelectronics Progress, 2020, 57(21): 212303

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    Paper Information

    Category: Optical Devices

    Received: Feb. 24, 2020

    Accepted: --

    Published Online: Oct. 24, 2020

    The Author Email: Xiang''en Fu (1907324312@qq.com)

    DOI:10.3788/LOP57.212303

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology