杂化自组装分子减少钙钛矿发光二极管的界面缺陷

IF 18.2 1区 材料科学 Q1 CHEMISTRY, PHYSICAL
Ben Chen, Xiping He, Jiayi Yu, Zhiyuan He, Chencheng Peng, Feihu Zhang, Runda Guo* and Lei Wang*, 
{"title":"杂化自组装分子减少钙钛矿发光二极管的界面缺陷","authors":"Ben Chen,&nbsp;Xiping He,&nbsp;Jiayi Yu,&nbsp;Zhiyuan He,&nbsp;Chencheng Peng,&nbsp;Feihu Zhang,&nbsp;Runda Guo* and Lei Wang*,&nbsp;","doi":"10.1021/acsenergylett.5c01884","DOIUrl":null,"url":null,"abstract":"<p >Self-assembled monolayers (SAMs) have exhibited widespread application in PeLEDs. However, most SAM molecules are amphiphilic, prone to forming micelles in solutions, which affects the uniformity of the film. In this work, we employed two SAM molecules to construct a hybrid SAM. By reducing the concentration of each component below the critical micelle concentration, the formation of micelles is inhibited. Additionally, the stability of mixed micelles was decreased through steric hindrance and hydrophobicity between different SAM molecules. SAM micelle formation is inhibited, resulting in more complete coverage of the buried interface. By utilization of this hybrid SAM, the thermally evaporated green PeLED achieved an EQE of 13.28%, representing advanced level performance in this field. Moreover, the devices maintained a high EQE of 8.30% at high current densities (@ 110 mA cm<sup>–2</sup>). This strategy offers a viable approach to circumvent the limitations associated with SAMs in PeLEDs, thereby enhancing their application potential.</p>","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":"10 8","pages":"4013–4018"},"PeriodicalIF":18.2000,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Hybrid Self-Assembled Molecules Reduce Interfacial Defects in Perovskite Light-Emitting Diodes\",\"authors\":\"Ben Chen,&nbsp;Xiping He,&nbsp;Jiayi Yu,&nbsp;Zhiyuan He,&nbsp;Chencheng Peng,&nbsp;Feihu Zhang,&nbsp;Runda Guo* and Lei Wang*,&nbsp;\",\"doi\":\"10.1021/acsenergylett.5c01884\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p >Self-assembled monolayers (SAMs) have exhibited widespread application in PeLEDs. However, most SAM molecules are amphiphilic, prone to forming micelles in solutions, which affects the uniformity of the film. In this work, we employed two SAM molecules to construct a hybrid SAM. By reducing the concentration of each component below the critical micelle concentration, the formation of micelles is inhibited. Additionally, the stability of mixed micelles was decreased through steric hindrance and hydrophobicity between different SAM molecules. SAM micelle formation is inhibited, resulting in more complete coverage of the buried interface. By utilization of this hybrid SAM, the thermally evaporated green PeLED achieved an EQE of 13.28%, representing advanced level performance in this field. Moreover, the devices maintained a high EQE of 8.30% at high current densities (@ 110 mA cm<sup>–2</sup>). This strategy offers a viable approach to circumvent the limitations associated with SAMs in PeLEDs, thereby enhancing their application potential.</p>\",\"PeriodicalId\":16,\"journal\":{\"name\":\"ACS Energy Letters \",\"volume\":\"10 8\",\"pages\":\"4013–4018\"},\"PeriodicalIF\":18.2000,\"publicationDate\":\"2025-07-28\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"ACS Energy Letters \",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://pubs.acs.org/doi/10.1021/acsenergylett.5c01884\",\"RegionNum\":1,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"ACS Energy Letters ","FirstCategoryId":"88","ListUrlMain":"https://pubs.acs.org/doi/10.1021/acsenergylett.5c01884","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0

摘要

自组装单层膜(SAMs)在等离子体发光二极管中有着广泛的应用。然而,大多数SAM分子是两亲性的,容易在溶液中形成胶束,从而影响薄膜的均匀性。在这项工作中,我们使用两个SAM分子构建了一个杂交SAM。通过将各组分的浓度降低到临界胶束浓度以下,可抑制胶束的形成。此外,不同的SAM分子之间的空间位阻和疏水性降低了混合胶束的稳定性。抑制了SAM胶束的形成,使得埋藏界面的覆盖更加完全。利用该混合SAM,热蒸发绿色PeLED的EQE达到了13.28%,达到了该领域的先进水平。此外,该器件在高电流密度(@ 110 mA cm-2)下保持8.30%的高EQE。该策略提供了一种可行的方法,可以规避与等离子体发光二极管中地对空导弹相关的限制,从而提高其应用潜力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Hybrid Self-Assembled Molecules Reduce Interfacial Defects in Perovskite Light-Emitting Diodes

Hybrid Self-Assembled Molecules Reduce Interfacial Defects in Perovskite Light-Emitting Diodes

Self-assembled monolayers (SAMs) have exhibited widespread application in PeLEDs. However, most SAM molecules are amphiphilic, prone to forming micelles in solutions, which affects the uniformity of the film. In this work, we employed two SAM molecules to construct a hybrid SAM. By reducing the concentration of each component below the critical micelle concentration, the formation of micelles is inhibited. Additionally, the stability of mixed micelles was decreased through steric hindrance and hydrophobicity between different SAM molecules. SAM micelle formation is inhibited, resulting in more complete coverage of the buried interface. By utilization of this hybrid SAM, the thermally evaporated green PeLED achieved an EQE of 13.28%, representing advanced level performance in this field. Moreover, the devices maintained a high EQE of 8.30% at high current densities (@ 110 mA cm–2). This strategy offers a viable approach to circumvent the limitations associated with SAMs in PeLEDs, thereby enhancing their application potential.

求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
ACS Energy Letters
ACS Energy Letters Energy-Renewable Energy, Sustainability and the Environment
CiteScore
31.20
自引率
5.00%
发文量
469
审稿时长
1 months
期刊介绍: ACS Energy Letters is a monthly journal that publishes papers reporting new scientific advances in energy research. The journal focuses on topics that are of interest to scientists working in the fundamental and applied sciences. Rapid publication is a central criterion for acceptance, and the journal is known for its quick publication times, with an average of 4-6 weeks from submission to web publication in As Soon As Publishable format. ACS Energy Letters is ranked as the number one journal in the Web of Science Electrochemistry category. It also ranks within the top 10 journals for Physical Chemistry, Energy & Fuels, and Nanoscience & Nanotechnology. The journal offers several types of articles, including Letters, Energy Express, Perspectives, Reviews, Editorials, Viewpoints and Energy Focus. Additionally, authors have the option to submit videos that summarize or support the information presented in a Perspective or Review article, which can be highlighted on the journal's website. ACS Energy Letters is abstracted and indexed in Chemical Abstracts Service/SciFinder, EBSCO-summon, PubMed, Web of Science, Scopus and Portico.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信