Table 2. EL performances of the OLEDs based on TPIBCz, TPINCz and TPIBNCz.
Emissive layer | V on a (V) | λ EL (nm) | CIE b (x, y) | CEmax c (cd A–1) | PEmax d (lm W–1) | EQEmax e (%) |
TPIBCz | 3.0 | 435 | 0.154, 0.063 | 1.70 ± 0.02 | 1.44 ± 0.05 | 3.38 ± 0.10 |
TPINCz | 3.1 | 448 | 0.157, 0.084 | 5.00 ± 0.14 | 5.15 ± 0.15 | 5.95 ± 0.10 |
TPIBNCz | 3.2 | 436 | 0.157, 0.074 | 3.29 ± 0.08 | 2.80 ± 0.09 | 5.09 ± 0.13 |
10 wt% TPIBCz | 3.7 | 428 | 0.156, 0.043 | 1.91 ± 0.02 | 1.72 ± 0.02 | 5.06 ± 0.05 |
20 wt% TPIBCz | 3.3 | 432 | 0.156, 0.046 | 1.96 ± 0.02 | 1.68 ± 0.04 | 5.46 ± 0.07 |
30 wt% TPIBCz | 3.2 | 432 | 0.156, 0.047 | 2.10 ± 0.04 | 2.20 ± 0.08 | 5.47 ± 0.10 |
10 wt% TPINCz | 3.3 | 436 | 0.155, 0.054 | 3.02 ± 0.15 | 2.53 ± 0.20 | 6.60 ± 0.20 |
20 wt% TPINCz | 3.1 | 440 | 0.153, 0.059 | 3.71 ± 0.11 | 3.71 ± 0.15 | 6.96 ± 0.08 |
30 wt% TPINCz | 3.1 | 440 | 0.153, 0.062 | 3.75 ± 0.06 | 3.36 ± 0.05 | 6.71 ± 0.12 |
10 wt% TPIBNCz | 3.4 | 424 | 0.158, 0.044 | 1.89 ± 0.05 | 1.51 ± 0.10 | 5.48 ± 0.15 |
20 wt% TPIBNCz | 3.2 | 428 | 0.157, 0.048 | 2.34 ± 0.04 | 2.14 ± 0.04 | 5.99 ± 0.05 |
30 wt% TPIBNCz | 3.1 | 428 | 0.157, 0.051 | 2.55 ± 0.05 | 2.24 ± 0.10 | 6.03 ± 0.14 |
aVoltage at 1 cd m–2.
bDetected at 1000 cd m–2.
cCurrent efficiency.
dPower efficiency.
eExternal quantum efficiency at maximum.