Efficiency Control in Iridium Complex-Based Phosphorescent Light-Emitting Diodes

<table><svg height="13.6375" id="M18" style="vertical-align:-1.97925pt" version="1.1" viewbox="0 0 26.5625 13.6375" width="26.5625" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,0,0,-.017,.062,11.113)"><path d="M434 650l-5 -28q-60 -8 -75 -20.5t-25 -69.5l-71 -395q-20 -107 -57.5 -168t-106.5 -94q-40 -18 -61 -20l-10 32q77 23 113 108q21 50 41 160l68 377q10 57 -1.5 69.5t-76.5 20.5l6 28h261z" id="x1D43D"></path></g><g transform="matrix(.017,0,0,-.017,7.831,11.113)"><path d="M300 253l-14 -55h-229l14 55h229z" id="x2D"></path></g><g transform="matrix(.017,0,0,-.017,13.882,11.113)"><path d="M730 650l-8 -28q-52 -4 -72 -18t-64 -77q-79 -113 -321 -539h-33l-119 541q-13 59 -29.5 73t-66.5 20l7 28h245l-8 -28l-28 -5q-33 -6 -40.5 -15.5t-0.5 -38.5l102 -450h2q191 320 246 430q21 42 15.5 56t-43.5 19l-31 4l7 28h240z" id="x1D449"></path></g>
</svg> characteristics of CBP : Ir(ppy)<sub>3</sub> green PHOLEDs with doping concentration from 1 to 8%. Inset shows the EQE and power efficiency as a function of luminance.</table>

Advances in Materials Science and Engineering

fig8

Figure 8

Figure 8: Efficiency Control in Iridium Complex-Based Phosphorescent Light-Emitting Diodes 