Wenyan Lin, Ye Yu, Xuekang Peng, Yu Jin, Zhijun Wu, Wei Lin. Improvement of Efficiency Roll-Off of Yellow Phosphorescent Organic Light-Emitting Devices by N-Doping[J]. Acta Optica Sinica, 2019, 39(3): 0323001
- Acta Optica Sinica
- Vol. 39, Issue 3, 0323001 (2019)
Fig. 1. Chemical structural formula of organic materials. (a) HAT-CN; (b) TAPC; (c) TCTA; (d) POAPF; (e) PO-01; (f) Bphen
Fig. 2. Structure and performance of the device. (a) Structure; (b) measured and fitted external quantum efficiency-current density
Fig. 3. Energy level diagrams of (a) device A1, (b) device A2, (c) device A3, and (d) device A4; (e) current density-voltage curves
Fig. 4. Characteristic curves of device Y and device B. (a) Current density-voltage-luminance curves; (b) current efficiency-luminance-power efficiency curves
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Table 1. Performance parameters of device Y and device B
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