Efficiency improvement of organic light emitting diodes (OLEDs) using micro/nano-structures

2016 3rd International Conference on Electrical Engineering and Information Communication Technology (ICEEICT) Pub Date : 2016-09-01 DOI:10.1109/CEEICT.2016.7873069

Md. Shamim Ahsan, Md. Rezvi Hossain, Sabiha Mehbuba, K. Islam, Md. Ziaul Amin, I. Sohn

{"title":"Efficiency improvement of organic light emitting diodes (OLEDs) using micro/nano-structures","authors":"Md. Shamim Ahsan, Md. Rezvi Hossain, Sabiha Mehbuba, K. Islam, Md. Ziaul Amin, I. Sohn","doi":"10.1109/CEEICT.2016.7873069","DOIUrl":null,"url":null,"abstract":"This paper demonstrates the design of high efficiency OLEDs by incorporating micro/nano-metric structures on the surface of and inside the substrate layer of the OLEDs. The OLEDs have been designed and simulated using Lumerical FDTD simulator. We also analyze the performance of the OLEDs from various perspectives such as quantum efficiency, normalized transmitted power, intensity, and angular distribution of light. To increase light extraction from the substrate layer, various micro/nano-metric structures, made of SijN4, have been incorporated as light scattering structures. Single layer structures of various size, shape (plano-convex & plano-concave lenses and pillars), and period have been investigated during our simulation. Simulation results confirm higher light extraction, angular distribution, and efficiency in micro/nano-metric structures induced OLEDs, compared to traditional OLEDs. Plano-concave MLA engraved OLEDs show high out-coupling efficiency, whereas, nano-pillars engraved OLED shows consistent light distribution in a wide angular region. We strongly believe that, the proposed OLEDs will have wide range of commercial applications.","PeriodicalId":240329,"journal":{"name":"2016 3rd International Conference on Electrical Engineering and Information Communication Technology (ICEEICT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2016 3rd International Conference on Electrical Engineering and Information Communication Technology (ICEEICT)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/CEEICT.2016.7873069","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 4

Abstract

This paper demonstrates the design of high efficiency OLEDs by incorporating micro/nano-metric structures on the surface of and inside the substrate layer of the OLEDs. The OLEDs have been designed and simulated using Lumerical FDTD simulator. We also analyze the performance of the OLEDs from various perspectives such as quantum efficiency, normalized transmitted power, intensity, and angular distribution of light. To increase light extraction from the substrate layer, various micro/nano-metric structures, made of SijN4, have been incorporated as light scattering structures. Single layer structures of various size, shape (plano-convex & plano-concave lenses and pillars), and period have been investigated during our simulation. Simulation results confirm higher light extraction, angular distribution, and efficiency in micro/nano-metric structures induced OLEDs, compared to traditional OLEDs. Plano-concave MLA engraved OLEDs show high out-coupling efficiency, whereas, nano-pillars engraved OLED shows consistent light distribution in a wide angular region. We strongly believe that, the proposed OLEDs will have wide range of commercial applications.

查看原文本刊更多论文

利用微纳米结构提高有机发光二极管的效率

本文通过在oled衬底层的表面和内部加入微纳米结构，展示了高效oled的设计。利用流形FDTD模拟器对oled器件进行了设计和仿真。我们还从量子效率、归一化透射功率、光强和光的角分布等多个角度分析了oled的性能。为了增加从衬底层的光提取，采用了由SijN4制成的各种微纳米结构作为光散射结构。在我们的模拟中，我们研究了各种尺寸、形状(平凸、平凹透镜和柱)和周期的单层结构。仿真结果证实，与传统的有机发光二极管相比，微纳米结构诱导的有机发光二极管具有更高的光提取、角度分布和效率。平凹MLA雕刻的OLED具有较高的外耦合效率，而纳米柱雕刻的OLED在宽角区域具有一致的光分布。我们坚信，所提出的oled将具有广泛的商业应用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

2016 3rd International Conference on Electrical Engineering and Information Communication Technology (ICEEICT)

自引率

0.00%

发文量