Abstract
Yellow organic light-emitting devices (OLEDs) with (2,3-diphenylpyrazino [2,3-f] [1, 10] phenanthroline) Re(CO)3Br (Re-Dppp) doped CBP as emissive layer were studied. It is found experimentally that Re-Dppp based yellow OLEDs possess high electroluminescent efficiency and brightness: a maximum brightness of 6249 cd/m2 at 15 V and a highest current efficiency of 14.2 cd/A with a brightness of 180 cd/m2 occurring at 1.3 mA/cm2 are achieved, which indicate that Re(I) complexes have a potential application in commercialized PMOLEDs.
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