Table 2 Device performances of the BPOLEDs with different hosts.

From: Carrier Transport and Recombination Mechanism in Blue Phosphorescent Organic Light-Emitting Diode with Hosts Consisting of Cabazole- and Triazole-Moiety

 

Driving Voltage (V)

Current Efficiency (cd/A)

EQE (%)d

Roll-off (%)e

mCP

6.11a, 7.72b, 8.05c

39.02d, 38.11a, 32.82b

18.03

15.89

TAZ

5.31a, 7.23b, 7.87c

45.90d, 43.36a, 31.77b

20.22

30.78

mCP:TAZ

5.24a, 6.72b, 6.99c

46.10d, 43.21a, 34.64b

20.29

24.86

2CbzTAZ

4.23a, 5.74b, 6.55c

52.25d, 51.97a, 47.96b

23.89

8.21

  1. aLuminance at 100 cd/m2, bLuminance at 1000 cd/m2, cMeasured at 10 mA/cm2, dMaximum value, e(CEMax − CE1000)/CEMax, CEMax and CE1000: current efficiency at maximum value and 1000 cd/m2, respectively.
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