基于周期性微纳结构的高性能柔性顶发射有机电致发光器件研究

项目名称： 基于周期性微纳结构的高性能柔性顶发射有机电致发光器件研究

项目编号： No.61505065

项目类型： 青年科学基金项目

立项/批准年度： 2016

项目学科： 无线电电子学、电信技术

项目作者： 刘岳峰

作者单位： 吉林大学

项目金额： 20万元

中文摘要： 柔性有机电致发光器件（flexible organic light emitting devices，FOLEDs）由于其可折叠卷曲的独特优越性，更能满足现代电子产品轻薄、便携及易于设计等方面的需求。而顶发射OLEDs（Top-emitting， TOLEDs）高效率、高色纯度及大开口率的优点，使其成为了OLEDs研究的主流。因此，发展FTOLEDs对其走向产业化具有重要意义。但是TOLEDs存在明显的表面等离子体模式能量损失和光谱角度依赖问题；考虑到寿命和稳定性的问题，柔性封装方法也非常重要。本项目聚焦FTOLEDs的效率、光谱角度依赖及柔性封装等问题。利用微纳结构减小FTOLEDs的表面等离子体模式能量损失，消除光谱角度依赖。并关注柔性封装方法和制备微纳结构新工艺的开发，旨在获得高效率、高机械稳定性、无角度依赖的FTOLEDs。为推动FTOLEDs应用的大规模产业化做出有益的探索。

中文关键词： 柔性OLED；顶发射OLED；光取出效率；视角；微纳结构

英文摘要： Flexible organic light emitting devices (FOLEDs) have attracted much attention due to can be folded and curled. They are much more suitable for modern electronics requirement of light, portable and easy design. Top-emitting OLEDs (TOLEDs) have become key direction because of high efficiency, aperture ratio and resolution. Therefore, FTOLEDs is essentially important for manufacturing application. Unfortunately, surface plasmon–polariton (SPP) modes associated with the metallic electrode/organic interface may lead to power loss. In the other hand, microcavity effect persisted in the TOLEDs results in strong viewing angle-dependent emission spectra, which is an obstacle to achieve FTOLEDs. Moreover, considered as lifetime and stability, flexible encapsulation is also very important. This project focuses on efficiency, viewing angle-dependent and flexible encapsulation of FTOLEDs. Reducing SPP modes power loss and eliminating viewing angle-dependent of TOLEDs employs by integrating micro-nanostructures. In addition, we will also develop flexible encapsulation method and fabrication process of micro-nanostructures. Finally, we can achieve a high efficiency, high mechanical robustness and viewing angle-independent FTOLEDs and contribute to large-scale manufacturing application of FTOLEDs.

英文关键词： flexible OLED;top-emitting OLED;light extraction efficiency;Viewing characteristics;micro-nanostructures