Table 3 Detailed Vbi values of PLEDs.

From: Mechanism study on highly efficient polymer light-emitting diodes utilizing double-layered alkali halide electron injection layer

Vbi

LiF

methanol/LiF

NaCl/LiF

KBr/LiF

CsF/LiF

reverse scan (2~0 V) (eV)

1.70

1.75

1.56

1.68

1.76

forward scan (−2~2 V) (eV)

1.72

1.78

0.91

1.23

1.31

series resistance (Rs) (Ω cm)

1.15 × 107

1.89 × 107

1.02 × 108

7.63 × 107

2.65 × 107