Table 2 Photophysical, thermal, and surface properties of doped films

From: High-performance blue OLED using multiresonance thermally activated delayed fluorescence host materials containing silicon atoms

 

2 wt% ν-DABNA-doped film

Tgc (°C)

Tdd (°C)

RMSe (nm)

θ//a (%)

PLQY

τd b (μs)

λmax/FWHM (nm)

kRISC (105 s−1)

TDBA-Ph

84

0.82

2.99

469/18

2.25

62

255

1.65

mTDBA-Ph

78

0.93

2.76

469/18

3.13

58

230

1.42

mTDBA-2Ph

86

0.86

1.86

468/18

3.98

93

262

1.78

TDBA-Si

91

0.82

0.96

469/18

7.01

130

324

0.37

mTDBA-Si

88

0.94

1.93

469/18

4.58

122

348

0.47

mTDBA-2Si

89

0.92

0.98

468/18

8.64

180

403

0.66

  1. aHorizontal transient dipole orientation ratio.
  2. bDelayed lifetime calculated by photoluminescence decay.
  3. cGlass transition temperature.
  4. dDecomposition temperature.
  5. eRoot mean square roughness measured by atomic force microscopy (AFM).
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