Table 3 EL performances of the blue emitting OLEDs based on the studied Ir(III) emitters

From: Exceptionally high brightness and long lifetime of efficient blue OLEDs for programmable active-matrix display

Dopant

Von a

EL Peak b

EQE (%) c

CE c

PE c

CIE d

Lmax e

FWHM f

LT50 g

(V)

(nm)

Max.

10000 (cd m−2)

50000 (cd m−2)

100000 (cd m−2)

(cd A−1)

(lm W−1)

(x,y)

(cd m−2)

(nm)

1000 (cd m−2)

m-CF3

2.80

492

19.05

16.00

8.40

/

50.92

52.73

0.179,0.498

71190

63

452

p-CF3

2.73

496

17.40

15.51

9.69

/

44.28

45.30

0.167,0.463

68180

62

390

tBuCz-m-CF3

2.77

485

31.62

27.76

22.74

20.58

73.82

78.81

0.175,0.446

214255

65

1073

tBuCz-p-CF3

2.73

485

30.72

25.67

22.67

20.87

67.17

65.95

0.166,0.410

205301

66

1237

1% v-DABNA/

5% tBuCz-m-CF3

2.75

472

29.50

22.08

16.03

15.08

42.20

40.30

0.141,0.233

105737

20

302

1% v-DABNA/

5% tBuCz-p-CF3

2.80

472

29.78

20.34

13.72

12.04h

41.86

40.27

0.140,0.233

83474

21

318

  1. aVon is defined as the driving voltage at the brightness of 1 cd m−2
  2. bElectroluminescent peak is recorded at current density of 10 mA cm−2
  3. cExternal quantum efficiency(EQE), current efficiency(CE) and power eficiency(PE) are recorded at their maximum, 10,000 cd m−2, 50,000 cd m−2 and 100,000 cd m−2
  4. dClE coordinate is recorded at current density of 10 mA cm−2
  5. eLm is defined as the maximum luminance
  6. fFWHM refers to the full width at half maximum
  7. gThe operational lifetime are from the initial brightness to half
  8. hThe value was measured at the max. brightness