镱银阴极对顶发射白光OLED器件光电性能的影响研究 |
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引用本文: | 杨启鸣,高思博,王灿,段良飞,钱福丽,段谦,张杰,王光华,鲁朝宇,段瑜.镱银阴极对顶发射白光OLED器件光电性能的影响研究[J].红外技术,2021,43(12):1207-1211. |
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作者姓名: | 杨启鸣 高思博 王灿 段良飞 钱福丽 段谦 张杰 王光华 鲁朝宇 段瑜 |
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作者单位: | 云南北方奥雷德光电科技股份有限公司,云南 昆明 650223 |
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基金项目: | 国家自然科学基金项目61604064云南省应用基础研究面上项目2016FB112云南省技术创新人才培养项目202105AD160057 |
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摘 要: | 研制了以镱银合金为透明阴极的顶发射白光OLED器件。采用ITO/NPB: LiQ(5%)(10 nm)/TCTA(20 nm)/FIrpic+3.5% Ir(ppy)3+0.5%Ir(MDQ)2(acac)(25 nm)/TPBI(10 nm)/LiF(5 nm)/Yb: Ag (X%)(X nm)器件结构,在相同镱银比例下,蒸镀不同厚度的镱银合金阴极制备了新型顶发射白光OLED器件,获得了优化的镱银合金厚度为12 nm;固定镱银阴极厚度,蒸镀不同比例的镱银合金阴极制备了新型顶发射白光OLED器件,探究不同比例的镱银合金对有机电致发光器件的影响。结果表明,当镱银电极的掺杂比例为10:1时,器件的性能最佳,在20 mA/cm2电流密度下,器件的驱动电压为2.3 V,亮度为1406 cd/m2,色坐标为(0.3407, 0.3922)。
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关 键 词: | Yb:Ag合金 阴极 顶发射白光OLED微型显示器 光电特性 |
收稿时间: | 2021-07-09 |
Study on the Effects of Yb: Ag Alloy Cathode on the Photoelectric Performance of the Top Emitting White Organic Light-emitting Devices |
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Institution: | Yunman North OLiGHTEK Opto-Electronic Technology Co. Ltd, Kunming 650223, China |
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Abstract: | Top-emitting white organic light-emitting diode(OLED) devices with a Mg: Ag alloy as a transparent cathode were fabricated. Based on the device structure of ITO/NPB: LiQ(5%) (10 nm)/TCTA(20 nm)/FIrpic+3.5% Ir(ppy)3+0.5%Ir(MDQ)2(acac) (25 nm)/TPBI(10 nm)/LiF(5 nm)/Yb: Ag (X%) (X nm), the top-emitting white OLED devices were prepared by using Yb: Ag alloy of different thickness as the cathode at the evaporation ratio of 10:1, the optimum thickness of Yb: Ag cathode was 12 nm by contrasting. The effect of different proportions of Yb: Ag alloy on OLEDs was investigated by changing the doping ratio of Ag. Based on the preliminary results, the alloy with a Ag mass fraction of 10% exhibits good electron injection characteristics, which can effectively improve the light-emitting characteristics of the device. When the current density was 20 mA/cm2, the driving voltage was 2.3 V, the brightness was 1406 cd/m2, and the color coordinates were close to (0.3407, 0.3922). |
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