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(a) Current density and (b) luminance vs bias voltage characteristics of the devices with different thicknesses of the are shown.
Current efficiency vs bias voltage of the devices with different thicknesses of the are shown.
Luminance decay as a function of operating time at a constant current. The different thicknesses of layer are shown.
Summary of surface roughness properties of different thicknesses of thin films on ITO glass substrates; (a) ; (b) ; (c) ; (d) ; (e) ; and (f) bare ITO. These data were obtained from AFM measurements over an area of .
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