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Variation in current density vs voltage for devices with different OXD-7 concentration in the LEP.
Current efficiency (cd/A) vs current density for devices with varying OXD-7 concentration in the light emitting spin coated layer. The inset shows luminous efficiency (cd/A) and luminous efficacy (lm/W) data for device D plotted against device brightness .
Variation in electroluminescence (EL) spectra at a fixed current density of for devices with varying OXD-7 concentration. The inset shows the total EL spectrum for the devices over the entire wavelength range in the visible region.
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