| 杨惠山,吴丽双,吴金妹,吴志伟.具有不同掺杂层厚度的荧光与磷光材料相结合的高效白色有机发光器件[J].光电子激光,2015,26(7):1273~1277 |
| 具有不同掺杂层厚度的荧光与磷光材料相结合的高效白色有机发光器件 |
| An efficient white organic light-emitting device with different thicknesses of doping layers based on phosphorescent emissive layer combined with fluorescen t emitter layer |
| 投稿时间：2015-04-07 |
| DOI： |
| 中文关键词: 白色有机发光器件(WOLED) 效率 色坐标 掺杂 |
| 英文关键词:white organic light-emitting device (WOLED) efficiency CIE coordinates dopi ng |
| 基金项目:福建省科技厅重点(2014H0042)、福建省自然基金(2015J01664)和泉州市科技局基金(2014Z137,3Z125)资助项目 (泉州师范学院 物理与信息工程学院,信息功能材料福建省高校重 点实验室,福建 泉州 362000) |
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| 中文摘要: |
| 实验制作一种多层白色有机发光器件(WOLED)。将 绿光磷光材料和红光磷光材料 Ir(piq)2(acac)共掺到母体BPhen中作为绿光和红光发光层；荧光材料DPVBi作为蓝光发 光层,通过改变掺杂层的厚度,得到了高效率的白色WOLED。器件的最大电流效 率可达4.55cd/ A,14 V时亮度达8489cd/m2 ；当电压从4V变化到12 V时,色坐标从(0.52,0.34)变化到(0.34, 0.26),基本处于白光区。此器件的 特点,在于其性能可以通过简单地调整掺杂层的厚度来控制。 |
| 英文摘要: |
| We report a multi-layer white organic light-emitting device (WOLED) bas ed on emissive layer,in which Ir(ppy)3and Ir(piq)2(acac) are codoped into BPhen h ost,and the fluorescent blue material DPVBi is employed in the WOLED.The efficient WOLED is obtai ned by varying the thickness of the doped layer.The maximum luminance and electrolumine scense (EL) efficiency of the device with the doped layer thickness of 25nm are 8489cd/m2and 4.55cd/A,respecti vely.The Commission Internationale De L′Eclairage (CIE) coordinates of the device vary f rom (0.52,0.34) at 4V to (0.34,0.26) at 12V,which are generally within the white region.The perform ance of WOLED may be tuned by changing the thickness of doped layer,and the simple device structures and excellent reproducibility make it well suitable for low-cost lighting applications an d ben eficial to the industrialization. |
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