Table 2 The CP-EL performances of HF CP-OLEDs using (R)-OBN-XT-SXAC and (R)-OBN-XT-SFAC as sensitizers

From: Hyperfluorescence circularly polarized OLEDs consisting of chiral TADF sensitizers and achiral multi-resonance emitters

Device

λEL (nm)a

Von (V)b

Lmax (cd m−2)c

ηC (cd A−1)d

ηP (lm W−1)e

ηext (%)f

CIEx,yg

FWHM (nm)h

gEL (× 10−3)i

maximum value / at 1000 cd m−2

(R)-HF1

470

2.9

21160

34.9/29.4

36.8/22.0

28.5/22.9

(0.13, 0.18)

20

2.93

(R)-HF2

542

2.9

10710

133.7/52.6

144.8/39.4

31.4/12.7

(0.32, 0.64)

42

1.31

(R)-HF3

470

3.3

10780

37.8/24.3

36.0/17.2

28.0/17.7

(0.13, 0.19)

20

1.55

(R)-HF4

470

3.4

15720

32.8/27.0

30.3/21.2

29.1/24.5

(0.12, 0.15)

19

1.59

(R)-HF5

540

3.0

11300

103.0/26.3

106.2/19.7

24.9/6.9

(0.30, 0.63)

42

1.29

(R)-HF6

538

3.0

22790

108.2/31.6

109.6/25.3

25.6/7.9

(0.29, 0.63)

43

1.24

(R)-T-HF1

470

6.5

16140

68.4/56.4

31.6/20.6

50.9/43.3

(0.13, 0.19)

20

4.87

(R)-T-HF2

540

5.3

20620

222.0/109.9

126.8/49.3

51.3/26.2

(0.28, 0.66)

39

2.43

  1. EML of device (R)-HF1: 0.5 wt% v-DABNA: 20 wt% (R)-OBN-XT-SXAC: mCBP (20 nm). EML of device (R)-HF2: 1 wt% BN2: 20 wt% (R)-OBN-XT-SFAC: CBP (20 nm). EML of device (R)-HF3: 0.5 wt% v-DABNA: mCBP (10 nm)/20 wt% (R)-OBN-XT-SXAC: PPF (1 nm). EML of device (R)-HF4: 20 wt% (R)-OBN-XT-SXAC: PPF (1 nm)/0.5 wt% v-DABNA: mCBP (10 nm). EML of device (R)-HF5: 1 wt% BN2: CBP (10 nm)/20 wt% (R)-OBN-XT-SFAC: PPF (1 nm). EML of device (R)-HF6: 20 wt% (R)-OBN-XT-SFAC: PPF (1 nm)/1 wt% BN2: CBP (10 nm). EML of device (R)-T-HF1: 0.5 wt% v-DABNA: 20 wt% (R)-OBN-XT-SXAC: mCBP (20 nm) (blue tandem HF device). EML of device (R)-T-HF2: 1 wt% BN2: 20 wt% (R)-OBN-XT-SFAC: CBP (20 nm) (green tandem HF device).
  2. aEL peak wavelength.
  3. bTurn-on voltage at 1 cd m−2.
  4. cMaximum luminance.
  5. dCurrent efficiency.
  6. ePower efficiency.
  7. fExternal quantum efficiency.
  8. gCommission Internationale de I’Eclairage coordinates.
  9. hFull width at half maximum.
  10. iEL dissymmetry factor.