Tailoring the Spectra of White Organic Light-Emitting Devices by Trap Effect of a Concentration-Insensitive Dopant
Table 1
Representative data of devices in this study.
Device
(V)
(max, cd/m2)
Current efficiency (cd/A)
Power efficiency (lm/W)
Max EQE
CIEa
Max
@ 10 mA/m2
@ 50 mA/m2
@ 100 mA/m2
Max
@ 10 mA/m2
@ 50 mA/m2
@ 100 mA/m2
A1
3.3
50137
30.8
30.2
24.8
20.5
13.1
10.2
6.5
5.1
14.9
(0.58, 0.43) (8 V)
A2
3.9
41328
36.3
33.1
24.8
20.6
22.5
10.8
6.5
4.8
17.5
(0.57, 0.43) (8 V)
A3
4.4
42200
37.9
34.0
24.9
20.4
20.8
10.9
6.2
4.5
18.2
(0.57, 0.43) (8 V)
A4
4.4
39947
31.0
28.2
22.6
18.9
17.3
9.4
5.6
4.1
15.1
(0.57, 0.43) (8 V)
A5
4.7
33532
29.3
28.4
23.7
20.2
11.4
9.4
6.1
4.6
14.0
(0.58, 0.42) (8 V)
B1
3.1
36172
29.8
23.7
18.4
15.0
23.8
11.9
6.7
4.8
15.2
(0.30, 0.35) (8 V)
B2
3.1
35505
31.6
27.0
20.3
15.9
27.3
12.3
6.9
4.9
17.1
(0.32, 0.36) (8 V)
(0.33, 0.37) (4 V)
(0.33, 0.37) (6 V)
B3
3.1
33856
38.8
32.0
22.9
17.4
30.0
13.9
7.3
4.9
18.1
(0.33, 0.36) (8 V)
(0.33, 0.36) (10 V)
(0.33, 0.36) (12 V)
(0.32, 0.36) (14 V)
B4
3.2
23518
40.7
30.8
20.0
15.3
32.2
12.7
6.3
4.3
19.0
(0.43, 0.39) (8 V)
B5
3.6
21099
37.3
31.2
20.3
15.1
23.1
12.7
6.3
4.2
18.1
(0.45, 0.41) (8 V)
: turn-on voltage, : maximum luminance, EQE: external quantum efficiency, CIE: Commission Internationale de l'Eclairage coordinates.
aData in parentheses are the corresponding driven voltages.
