Improving Quantum Dot Stability Against Heat and Moisture with Cyclic Olefin Copolymer Matrix

IF 2.9 4区工程技术 Q2 CHEMISTRY, MULTIDISCIPLINARY

Korean Journal of Chemical Engineering Pub Date : 2024-09-18 DOI:10.1007/s11814-024-00278-z

Seon Hui Baek, Seung Jae Kim, Ho Seok Heo, Kangtaek Lee

{"title":"Improving Quantum Dot Stability Against Heat and Moisture with Cyclic Olefin Copolymer Matrix","authors":"Seon Hui Baek, Seung Jae Kim, Ho Seok Heo, Kangtaek Lee","doi":"10.1007/s11814-024-00278-z","DOIUrl":null,"url":null,"abstract":"<div><p>Quantum dots (QDs) are widely studied for their superior optical properties. However, maintaining their stability requires effective protection against heat and moisture. This research aims to enhance the stability of QDs by embedding them in cyclic olefin copolymer (COC). Our findings show that nanocomposites containing green- and red-emitting QDs in COC exhibited enhanced transparency and dispersion when compared to those using other common polymers, such as polydimethylsiloxane (PDMS) and poly(methyl methacrylate) (PMMA). Stability test under harsh conditions (85 °C and 85% relative humidity) confirmed the robustness of the QDs within the COC matrix compared to the PDMS and PMMA matrices. In addition, a white-light-emitting diode (LED) device was successfully fabricated by integrating a blend of green- and red-emitting QDs in COC-based nanocomposites atop a blue LED chip. This setup demonstrated potential for use in light-emitting devices that demand high luminous efficiency and transparency, even under extreme conditions. The study highlights the potential of COC as an alternative to traditional polymers, enhancing the performance and durability in display technologies.</p></div>","PeriodicalId":684,"journal":{"name":"Korean Journal of Chemical Engineering","volume":"41 13","pages":"3461 - 3468"},"PeriodicalIF":2.9000,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Korean Journal of Chemical Engineering","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s11814-024-00278-z","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 0

Abstract

Quantum dots (QDs) are widely studied for their superior optical properties. However, maintaining their stability requires effective protection against heat and moisture. This research aims to enhance the stability of QDs by embedding them in cyclic olefin copolymer (COC). Our findings show that nanocomposites containing green- and red-emitting QDs in COC exhibited enhanced transparency and dispersion when compared to those using other common polymers, such as polydimethylsiloxane (PDMS) and poly(methyl methacrylate) (PMMA). Stability test under harsh conditions (85 °C and 85% relative humidity) confirmed the robustness of the QDs within the COC matrix compared to the PDMS and PMMA matrices. In addition, a white-light-emitting diode (LED) device was successfully fabricated by integrating a blend of green- and red-emitting QDs in COC-based nanocomposites atop a blue LED chip. This setup demonstrated potential for use in light-emitting devices that demand high luminous efficiency and transparency, even under extreme conditions. The study highlights the potential of COC as an alternative to traditional polymers, enhancing the performance and durability in display technologies.

Abstract Image

查看原文本刊更多论文

利用环烯烃共聚物基质提高量子点的耐热耐湿稳定性

量子点（QDs）因其卓越的光学特性而被广泛研究。然而，保持其稳定性需要有效的防热防潮保护。本研究旨在通过将量子点嵌入环烯烃共聚物（COC）来增强量子点的稳定性。我们的研究结果表明，与使用聚二甲基硅氧烷（PDMS）和聚甲基丙烯酸甲酯（PMMA）等其他常见聚合物的纳米复合材料相比，在 COC 中含有绿色和红色发光 QD 的纳米复合材料具有更高的透明度和分散性。在苛刻条件（85 °C、85% 相对湿度）下进行的稳定性测试证实，与 PDMS 和 PMMA 基质相比，COC 基质中的 QDs 具有很强的稳定性。此外，通过在基于 COC 的纳米复合材料中将绿色和红色发光 QDs 混合集成到蓝色 LED 芯片上，成功地制造出了白光发光二极管 (LED) 器件。该装置在要求高发光效率和透明度（即使在极端条件下）的发光设备中得到了应用。这项研究强调了 COC 作为传统聚合物替代品的潜力，可提高显示技术的性能和耐用性。

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

Korean Journal of Chemical Engineering 工程技术-工程：化工

CiteScore

4.60

自引率

11.10%

发文量

310

审稿时长

4.7 months

期刊介绍： The Korean Journal of Chemical Engineering provides a global forum for the dissemination of research in chemical engineering. The Journal publishes significant research results obtained in the Asia-Pacific region, and simultaneously introduces recent technical progress made in other areas of the world to this region. Submitted research papers must be of potential industrial significance and specifically concerned with chemical engineering. The editors will give preference to papers having a clearly stated practical scope and applicability in the areas of chemical engineering, and to those where new theoretical concepts are supported by new experimental details. The Journal also regularly publishes featured reviews on emerging and industrially important subjects of chemical engineering as well as selected papers presented at international conferences on the subjects.