具有凹凸界面结构的有机发光器件的性能研究

王华; 杜晓刚; 郝玉英; 杨倩; 崔艳霞; 张叶

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具有凹凸界面结构的有机发光器件的性能研究

器件物理及器件制备技术 | 更新时间：2020-08-12

- 具有凹凸界面结构的有机发光器件的性能研究
- Concavo-convex interface for enhancing efficiency in organic light emitting diodes
- 液晶与显示 2014年29卷第4期页码：527-532
- 作者机构：
  
  1. 太原理工大学新材料界面科学与工程教育部重点实验室,山西太原,030024
  2. 太原理工大学新材料工程技术研究中心,山西太原,030024
  3. 太原理工大学物理与光电工程学院,山西太原,030024
- 作者简介：
- 基金信息：
  
  教育部新世纪优秀人才支持计划（No.NCET-13-0927）();国家国际科技合作专项（No.2012DFR50460）();国家自然科学基金（No.21101111
- DOI：
  中图分类号： TP394.1;TH691.9
- 收稿日期：2014-03-17，
  
  修回日期：2014-03-27，
  
  网络出版日期：2014-05-02，
  
  纸质出版日期：2014-08-05
- 稿件说明：
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王华, 杜晓刚, 郝玉英, 杨倩, 崔艳霞, 张叶. 具有凹凸界面结构的有机发光器件的性能研究[J]. 液晶与显示, 2014,29(4): 527-532

WANG Hua, DU Xiao-gang, HAO Yu-ying, YANG Qing, CUI Yan-xia, ZHANG Ye. Concavo-convex interface for enhancing efficiency in organic light emitting diodes[J]. , 2014,29(4): 527-532
王华, 杜晓刚, 郝玉英, 杨倩, 崔艳霞, 张叶. 具有凹凸界面结构的有机发光器件的性能研究[J]. 液晶与显示, 2014,29(4): 527-532 DOI：

WANG Hua, DU Xiao-gang, HAO Yu-ying, YANG Qing, CUI Yan-xia, ZHANG Ye. Concavo-convex interface for enhancing efficiency in organic light emitting diodes[J]. , 2014,29(4): 527-532 DOI：

摘要

通过采用毫米尺度的凹凸界面结构实现了有机发光器件（Organic Light Emitting Device，OLED）发光效率的提高。在制备OLED器件过程中使用双狭缝模板，在发光层的界面处构建了高度为10 nm的凸起，获得最大功率效率为23.9 lm/W，最大电流效率为45.6 cd/A，与传统的平直界面的OLED相比，分别提高了70%和36%。经过实验数据分析与理论模拟得出初步结论：OLED发光效率提高主要归因于金属界面处局域表面等离子体共振激发，提高了金属阴极界面的远场散射，从而提高OLED的出光效率；另外适当凹凸深度也改善了器件的电学性能。

Abstract

High electroluminescence intensity based organic light emitting diodes (OLEDs) with millimeter-scale concavo-convex interface were addressed. Using template with double-slits up to 10 nm-height-protrusion

a maximum power and current efficiency of 23.9 lm/W and 45.6 cd/A were achieved

enhancing 70% and 36% compared with the optimized general planar device structure

respectively. The enhancement in luminescence intensity can mainly be attributed to the localized sur face plasmons (LSPs) induced by the metallic corner because the effective scattering of the LSP-metallic corner would result in enhancement in light extraction efficiency. More detail enhancement mechanism of the EL intensity was also argued.

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references

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