Table 2.
Reported device structures and performances of NIR OLEDs (with ITO as the anode)
| No.a | HIL/HTL | EML(doping ratio) | HBL/ETL | EIL/Cathode | λEL (nm)b | EQE (%)c | Radiance (mW·cm−2/W·sr−1·m−2) | CIE |
|---|---|---|---|---|---|---|---|---|
| 1 | PEDOT:PSS | PVK:PBD:1(65:30:5) | BCP/Alq3 | LiF/Al | 720 | 0.266 | 0.238/- | |
| 2 | NPB | Alq3:2(90:10) | Alq3 | Mg:Ag | 720 | 1.07 | 4.6/- | (0.64, 0.26) |
| 3 | PEDOT:PSS | PVK:PBD:3(50:30:20) | TPBi | Cs2CO3/Al | 693 | 0.67 | 0.181/- | |
| 4 | PEDOT:PSS | PVK:PBD:4(50:30:20) | TPBi | Cs2CO3/Al | 753 | 0.30 | 0.095/- | |
| 5 | NPB | Ga2(saph)2q2:5(80:20) | Bphen | Mg:Ag | 780,850(s) | 2.2 | 1.8/- | |
| 6 | PEDOT:PSS | PVK:PBD:6(100:30:4) | CsF/Al | 694 | 1.41 | (0.65, 0.26) | ||
| 8 | PEDOT:PSS | PVK:PBD:8(59:40:1) | TPBi | CsF/Al | 690 | 5.7 | 0.566/- | |
| 9 | PEDOT:PSS | PVK:PBD:9(59:40:1) | TPBi | CsF/Al | 704 | 3.4 | 0.444/- | |
| 10 | PEDOT:PSS | PVK:PBD:10(50:30:20) | TPBi | Cs2CO3/Al | 715(s), 788 | 0.50 | 0.1112/- | |
| 11 | PEDOT:PSS | PVK:PBD:11(50:30:20) | TPBi | Cs2CO3/Al | 791 | 0.34 | 0.0572/- | |
| 14 | PEDOT:PSS | PVK:OXD-7:14(65:30:5) | Ba/Al | 714 | 3.07 | -/1.43 | ||
| 15 | PEDOT:PSS | PVK:OXD-7:15(65:30:5) | Ba/Al | 709 | 1.28 | -/3.1 | ||
| 16 | PEDOT:PSS | PVK:OXD-7:16(65:30:5) | Ba/Al | 714 | 2.44 | -/4.9 | ||
| 17 | PEDOT:PSS | PVK:OXD-7:17(61.6:26.4:12) | TPBi | Ba/Al | 723,780(s) | 0.41 | 0.0741/- | |
| 18 | NPB | DIC-TRZ:18(94:6) | TPBi | Mg:Ag | 811 | 0.5 | 0.0945/- | |
| 19 | NPB | DIC-TRZ:19(88:12) | TPBi | Mg:Ag | 760 | 4.5 | 4.1818/- | |
| 20 | PEDOT:PSS/TFB | CBP:PBD:20(60:30:10) | TmPyPB | Liq/Al | 698,762(s) | 1.29 | -/0.0059 | |
| 22 | PEDOT:PSS | PVK:OXD-7:22(66:30:4) | TPBi | Ba/Al | 698,763(s) | 0.56 | 0.0543/- | |
| 23 | PEDOT:PSS | PVK:OXD-7:23(63.3:31.7:5) | TmPyPB | LiF/Al | 700,760(s) | 2.22 | -/0.11 | |
| 24 | PEDOT:PSS | mCP:TCTA:24(10 wt%) | TPBi | Liq/Al | 747 | 0.15 | (0.53, 0.42) | |
| 25 | PEDOT:PSS | mCP:TCTA:25(10 wt%) | TPBi | Liq/Al | 730 | 0.6 | (0.59, 0.37) | |
| 26 | HAT-CN/TAPC | mCP:26(90:10) | TmPyPB | LiF/Al | 715 | 4.0 | ||
| 29 | PEDOT:PSS | PVK:OXD-7:29(65:30:5) | TmPyPB | LiF/Al | 702,772(s) | 1.12 | -/0.047 | |
| 30 | PEDOT:PSS/PVK | CBP:30(91:9) | TPBi | Ba/Al | 712,780(s) | 0.29 | 0.79/- | |
| 31 | PEDOT:PSS/PVK | CBP:31(91:9) | TPBi | Ba/Al | 716,780(s) | 0.66 | 1.23/- | |
| 32 | PEDOT:PSS/PVK | CBP:32(88:12) | TPBi | Ba/Al | 710,780(s) | 0.48 | 0.85/- | |
| 33 | PEDOT:PSS/poly-TPD | PVK:OXD-7:33(69.3:29.7:1) | TmPyPB | LiF/Al | 674 | 7.04 | -/33.671 | |
| 34 | PEDOT:PSS/poly-TPD | PVK:OXD-7:34(69.3:29.7:1) | TmPyPB | LiF/Al | 724 | 4.14 | -/20.981 | |
| 39 | HAT-CN/TAPC/mCP | CBP:39(85:15) | TPBi | LiF/Al | 690 | 10.62 | (0.713,0.274) | |
| 40 | HAT-CN/TAPC/mCP | CBP:39(85:15) | TPBi | LiF/Al | 706 | 9.59 | (0.707, 0.277) | |
| 42 | PEDOT:PSS/PVK | TCTA:PO-T2T:42(45:45:10) | TPBi | LiF/Al | 716 | 1.674 | (0.72,0.28) | |
| 43 | PEDOT:PSS/poly-TPD | CBP:43(99.0:1.0) | TmPyPB | CsF/Al | 730 | 6.91 | -/26.100 | |
| 44 | PEDOT:PSS/poly-TPD | PVK:OXD-7:44(69.44:29.76:0.8) | TmPyPB | CsF/Al | 760 | 1.45 | -/11.518 | |
| 45 | PEDOT:PSS | CzTPA-m-Trz:45(90:10) | Bphen | LiF/Al | 850,948(s) | 0.17 | 0.0525/- | |
| 46 | PEDOT:PSS/poly-TPD | PVK:OXD-7:46(69.44:29.76:0.8) | TmPyPB | CsF/Al | 704 | 6.91 | -/53.611 | |
| 47 | PEDOT:PSS/poly-TPD | PVK:OXD-7:47(69.44:29.76:0.8) | TmPyPB | CsF/Al | 728 | 5.35 | -/38.165 | |
| 48 | PEDOT:PSS/TAPC | CBP:48(98.0:2.0) | TmPyPB | CsF/Al | 708 | 13.72 | -/26.996 | |
| 49 | PEDOT:PSS/TAPC | CBP:49(98.0:2.0) | TmPyPB | CsF/Al | 718 | 12.34 | -/24.647 | |
| 50 | PEDOT:PSS/poly-TPD | PVK:OXD-7:50(53.2:22.8:24) | TmPyPB | Liq/Al | 716 | 1.15 | -/28.827 |
a
The number corresponds to the molecular structure with the same number, which is consistent with Table 1.
b
Peak emission wavelengths of electroluminescence in OLED devices, the “s” in the parentheses means shoulder peak.
c
Maximum external quantum efficiencies of corresponding OLED devices.