Transparent CdSe/ZnS quantum-dot light-emitting diodes with WOx/Ag/WOx transparent electrodes achieving higher efficiency than opaque quantum-dot light-emitting diodes

IF 2.4 4区物理与天体物理 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Current Applied Physics Pub Date : 2024-07-14 DOI:10.1016/j.cap.2024.07.006

Jimyoung Kim, Honyeon Lee

{"title":"Transparent CdSe/ZnS quantum-dot light-emitting diodes with WOx/Ag/WOx transparent electrodes achieving higher efficiency than opaque quantum-dot light-emitting diodes","authors":"Jimyoung Kim, Honyeon Lee","doi":"10.1016/j.cap.2024.07.006","DOIUrl":null,"url":null,"abstract":"<div>High-performance transparent quantum-dot light-emitting diodes (TQLEDs) are achieved through fine-tuning the top dielectric/metal/dielectric (DMD) anode structure. The transparent DMD electrodes are utilized as both the bottom cathode and top anode of TQLEDs. Employing WOx/Ag/WOx DMD anodes serves a dual purpose of transparency and hole injection, thereby streamlining the TQLED design. Investigation into the effects of the thicknesses of WOx and Ag layers on the device characteristics reveals an optimal configuration of 10-nm WOx/27-nm Ag/40-nm WOx for the DMD anode. The resulting TQLED exhibits a remarkable device light transmittance of 47 % at 530 nm. With maximum bottom and top emission current efficiencies of 34.0 and 9.42 cd/A, respectively, the total emission obtained by summing the bottom and top emissions reaches the maximum current efficiency of 41.8 cd/A, surpassing that of conventional opaque quantum-dot light-emitting diodes. This advancement underscores the successful fabrication of TQLEDs boasting higher efficiency alongside substantial light transmittance.</div>","PeriodicalId":11037,"journal":{"name":"Current Applied Physics","volume":"66 ","pages":"Pages 122-130"},"PeriodicalIF":2.4000,"publicationDate":"2024-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Current Applied Physics","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S156717392400155X","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 0

Abstract

High-performance transparent quantum-dot light-emitting diodes (TQLEDs) are achieved through fine-tuning the top dielectric/metal/dielectric (DMD) anode structure. The transparent DMD electrodes are utilized as both the bottom cathode and top anode of TQLEDs. Employing WO_x/Ag/WO_x DMD anodes serves a dual purpose of transparency and hole injection, thereby streamlining the TQLED design. Investigation into the effects of the thicknesses of WO_x and Ag layers on the device characteristics reveals an optimal configuration of 10-nm WO_x/27-nm Ag/40-nm WO_x for the DMD anode. The resulting TQLED exhibits a remarkable device light transmittance of 47 % at 530 nm. With maximum bottom and top emission current efficiencies of 34.0 and 9.42 cd/A, respectively, the total emission obtained by summing the bottom and top emissions reaches the maximum current efficiency of 41.8 cd/A, surpassing that of conventional opaque quantum-dot light-emitting diodes. This advancement underscores the successful fabrication of TQLEDs boasting higher efficiency alongside substantial light transmittance.

Abstract Image

查看原文本刊更多论文

带有 WOx/Ag/WOx 透明电极的透明 CdSe/ZnS 量子点发光二极管的效率高于不透明量子点发光二极管

高性能透明量子点发光二极管（TQLED）是通过微调顶部电介质/金属/电介质（DMD）阳极结构实现的。透明的 DMD 电极可用作 TQLED 的底部阴极和顶部阳极。采用 WOx/Ag/WOx DMD 阳极可实现透明和空穴注入的双重目的，从而简化了 TQLED 的设计。通过研究 WOx 和 Ag 层厚度对器件特性的影响，发现 DMD 阳极的最佳配置为 10-nm WOx/27-nm Ag/40-nm WOx。由此产生的 TQLED 在 530 纳米波长下的器件透光率高达 47%。底部和顶部的最大发射电流效率分别为 34.0 cd/A 和 9.42 cd/A，将底部和顶部的发射电流相加后得到的总发射电流效率达到 41.8 cd/A，超过了传统的不透明量子点发光二极管。这一进步凸显了 TQLED 的成功制造，它不仅效率更高，而且透光率也很高。

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

Current Applied Physics 物理-材料科学：综合

CiteScore

4.80

自引率

0.00%

发文量

213

审稿时长

33 days

期刊介绍： Current Applied Physics (Curr. Appl. Phys.) is a monthly published international journal covering all the fields of applied science investigating the physics of the advanced materials for future applications. Other areas covered: Experimental and theoretical aspects of advanced materials and devices dealing with synthesis or structural chemistry, physical and electronic properties, photonics, engineering applications, and uniquely pertinent measurement or analytical techniques. Current Applied Physics, published since 2001, covers physics, chemistry and materials science, including bio-materials, with their engineering aspects. It is a truly interdisciplinary journal opening a forum for scientists of all related fields, a unique point of the journal discriminating it from other worldwide and/or Pacific Rim applied physics journals. Regular research papers, letters and review articles with contents meeting the scope of the journal will be considered for publication after peer review. The Journal is owned by the Korean Physical Society.