| 利用双发光层结构提高N-BDAVBi掺杂器件的效率 |
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| 引用本文： | 王福军,汪津,张会萍,姜文龙. 利用双发光层结构提高N-BDAVBi掺杂器件的效率[J]. 吉林师范大学学报(自然科学版), 2014, 0(4): 32-35 |
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| 作者姓名： | 王福军 汪津 张会萍 姜文龙 |
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| 作者单位： | 吉林师范大学 信息技术学院,吉林 四平,136000 |
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| 基金项目： | 吉林省科技发展项目，吉林省教育厅“十二五“科学技术研究项目 |
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| 摘 要： | 制备了基于N-BDAVBi的高效率双发光层蓝色有机电致发光器件(OLED),器件中将蓝色荧光染料NBDAVBi作为客体发光材料分别掺入主体材料TCTA和TPBi中,器件结构为ITO/m-MTDATA(40 nm)/NPB(10nm)/TCTA:N-BDAVBi(15 nm)/TPBi:N-BDAVBi(15 nm)/TPBi(30 nm)/LiF(0.6 nm)/Al(150 nm),最大电流效率达到8.44 cd/A,CIE色坐标为(0.176,0.314),并且在12 V的电压下,亮度最大达到11 860 cd/m2,分别是单发光层结构器件的1.85倍和1.2倍.器件性能提高主要归因于双发光层扩大了载流子复合区域,主客体间的Forster能量转移.
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| 关 键 词： | 双发光层 效率 有机电致发光器件 |
Using Double Emission Layers Structure to Improve the Efficiency of N-BDAVBi Doped Devices |
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| WANG Fu-jun,WANG Jin,ZHANG Hui-ping,JIANG Wen-long. Using Double Emission Layers Structure to Improve the Efficiency of N-BDAVBi Doped Devices[J]. Jilin Normal University Journal(Natural Science Edition), 2014, 0(4): 32-35 |
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| Authors: | WANG Fu-jun WANG Jin ZHANG Hui-ping JIANG Wen-long |
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| Affiliation: | (College of Information and Technology,Jilin Normal University, Siping 136000, China) |
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| Abstract: | The high-efficiency and double emitting layers blue light emitting devices was fabricated in the paper. In this device,blue fluorescent material N-BDAVBi was guest which was doped into two host material of TCTA and TPBi. The device structure included indium tin oxide glass（ITO）/ m-MTDATA（40 nm）/ NPB（10 nm）/TCTA：N-BDAVBi（15 nm）/ TPBi：N-BDAVBi（15 nm）/ TPBi（30 nm）/ LiF（0. 6 nm）/ Al（150 nm）. The maximum luminance efficiency was 8. 44 cd / A,which was 1. 85 times and 1. 2 times of the single light-emitting layer structure devices. CIE colour was（0. 176,0. 314）. The maximum luminance of more than 20 620 cd / m2 had been achieved at 12 V. The reason of high capability was the expansion of the recombination zone in double emission layers structure,and fully Forster energy transfer in blue OLEDs. |
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| Keywords: | double emitting layers efficiency OLED |
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