Acta Optica Sinica, Volume. 39, Issue 3, 0323001(2019)
Improvement of Efficiency Roll-Off of Yellow Phosphorescent Organic Light-Emitting Devices by N-Doping
Figures & Tables(5)
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
Table 1. Performance parameters of device Y and device B
View tableTable 1. Performance parameters of device Y and device B
Device V on /VVoltage /V Current efficiency / (cd·A-1) Power efficiency / (lm·W-1) EQEmax / % J e /(mA·cm-2) V 100V 1000V10000 η maxη 100η 1000η maxη 100η 1000Y 2.13 2.53 3.08 4.30 30.2 26.6 20.0 37.6 27.1 14.6 11.01 141 B 2.20 2.50 2.99 4.19 30.9 27.5 21.3 39.0 28.9 16.0 11.39 189
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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
Paper Information
Category: Optical Devices
Received: Sep. 10, 2018
Accepted: Oct. 30, 2018
Published Online: May. 10, 2019
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