Tailoring the Spectra of White Organic Light-Emitting Devices by Trap Effect of a Concentration-Insensitive Dopant

<table>Luminance-bias voltage-current density characteristics of devices A1, A2, A3, A4, and A5. Inset: EL spectra of devices A1-5 at voltage of 8 V. Note that the numbers in the legend represent concentration of (tbpbt)<sub>2</sub>Ir(acac) dopant in the devices.</table>

International Journal of Photoenergy

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Figure 2

Figure 2: Tailoring the Spectra of White Organic Light-Emitting Devices by Trap Effect of a Concentration-Insensitive Dopant 