1 结果与讨论
1.1 合成与结构
1.2 光物理性能
1.3 热稳定性与电子轨道能级
1.4 电致发光性能
图5 非掺杂器件(a)和掺杂器件(b)的能级图及器件中所用材料的分子结构(c)Figure 5 Energy level diagrams of non-doped device (a) and doped device (b), and molecular structures of materials used in devices (c) |
表1 器件的主要电致发光性能数据Table 1 Key electroluminescence performance data of the devices |
| Device | Vona/V | λmaxb/nm | FWHMb/nm | CIE (x, y)b | Lmaxc/(cd•m–2) | EQE d/% Max/1000 | CE d/(cd•A–1) Max/1000 | PE d/(lm•W–1) Max/1000 |
|---|---|---|---|---|---|---|---|---|
| Non-doped | 3.6 | 444 | 71 | 0.20, 0.21 | 3500 | 3.2/3.0 | 5.3/5.0 | 3.1/2.5 |
| Doped | 3.9 | 440 | 62 | 0.15, 0.09 | 2810 | 4.1/3.8 | 3.6/3.2 | 2.4/1.2 |
a Value recorded at 1.0 cd•m–2; b EL peak recorded at 100 cd•m–2; c Maximum luminance; d EQE, CE, PE: Maximum value/Value recorded at 1000 cd•m–2. |