基于OLED光源和离子交换波导的表面等离子体传感器研究

项目名称： 基于OLED光源和离子交换波导的表面等离子体传感器研究

项目编号： No.61077045

项目类型： 面上项目

立项/批准年度： 2011

项目学科： 金属学与金属工艺

项目作者： 张乐天

作者单位： 吉林大学

项目金额： 16万元

中文摘要： 本项目以基于OLED为光源的表面等离子体传感器为研究对象，对波导传感器的结构进行了理论模拟，制备了一系列白光OLED器件，并对不同颜色的OLED的边发射和面发射光谱进行了测试。取得了如下结果：(1)波导传感器中的金属材料、厚度，波导厚度，介质层厚度等对波导和SPP之间的能量耦合有重要影响。在折射率为1.36-1.43范围内，器件灵敏度接近2000 nm/RIU；(2)OLED器件厚度为100nm时，蓝光和黄光器件的边发射和面发光光谱差别不大，未观察到明显的边发射特性，当器件厚度为200nm时，白光器件的边反射和面发射光谱有明显差别；(3)制备了磷光荧光结合型白光OLED，在1000cd/m2的亮度下，功率效率可达14.4lm/W；(4)制备了基于金属介质多层膜为电极的柔性顶发射白光OLED，器件性能与底发射器件性能相当，器件的显色指数可达84；(5)从理论上分析和优化了顶发射白光有机发光器件，对金属电极的厚度，光输出耦合层的厚度等进行了优化设计。 本项目共发表SCI检索论文4篇，国内会议论文1篇。

中文关键词： 表面等离子体传感器；有机发光；边发射

英文摘要： The object of this project is the SPR sensor based on OLED and waveguide. We have obtained the following results: (1)A theoretical analysis of the phenomenon of excitation of surface plasma waves in integrated-optical waveguide structures is carried out.The effect of the thickness of the metal and waveguide, etc, on the performance of the SPR sensor were analysed. The sensitivity of such sensor can reach 2000 nm/RIU. (2)There is no obvious difference between the edge and surface emission of the blue and yellow OLED when the thickness of the devices is 100 nm. there is obvious difference between the edge and surface emission of the white OLED when the thickness of the device is 200nm. (3)Efficient hybrid white organic light-emitting devices (WOLEDs) were developed using an ambipolar blue fluorescent emitter 2-diphenylamino-7-(2,2′#8242;-diphenylvinyl)-9,9′spirobifluorene (DPV). The power efficiency and the Commission Internationale de l'Eclairage coordinates of the device are 14.1 lm/W and (0.41, 0.41) at 1000 cd/m2. By attaching a microlens array (MLA) on the backside of the substrate, the outcoupling of electroluminescence in the forward direction is enhanced, resulting in elevated power efficiency 18.6 lm/W at 1000 cd/m2. (4)A top-emitting warm-white organic light emitting diode (TEWOLED) was fabricated with a conductive transparent MAM cathode [MAM = MoO3 (40 nm)/Ag (17 nm)/MoO3 (40 nm)], which had a higher color rendering index (CRI) than that of corresponding ITO-based bottom-emitting organic light-emitting device. (5)We present a simulation of the optical properties of ITO-free TEWOLEDs. The influence of the capping layer or the metallic-dielectric multilayer structure on the optical properties (such as efficiency, angular emission characteristics, color gamut and color rendering index) of the devices has been investigated. We have published 4 SCI articles and 1 conference article.

英文关键词： SPR sensor；OLED；Edge emission