Rongdeng Lu, Tinghui Huang, Alexander Goloveshkin, Dmitry Kopytov, Kseniya Orekhova, Ivan Khanbekov and Valentina V. Utochnikova
{"title":"What is the key factor affecting the cathodoluminescence intensity of europium complexes?†","authors":"Rongdeng Lu, Tinghui Huang, Alexander Goloveshkin, Dmitry Kopytov, Kseniya Orekhova, Ivan Khanbekov and Valentina V. Utochnikova","doi":"10.1039/D4DT02501F","DOIUrl":null,"url":null,"abstract":"<p >In order to substitute well-studied but hard-to-deposit inorganic cathodoluminescent (CL) compounds with coordination compounds and organic ligands, it is primarily important to establish CL correlation with photoluminescence and increase CL intensity. In this paper, homo- and mixed-ligand 1,4-terephthalates and naphthalene-2,6-carboxylates of europium were studied, including a novel complex (Eu<small><sub>2</sub></small>(nda)<small><sub>3</sub></small>(BPhen)<small><sub>2</sub></small>(H<small><sub>2</sub></small>O)<small><sub>4</sub></small>) whose crystal structure was determined. They were found to display luminescence of various intensities under excitation by fast electrons, which is characteristic of Eu<small><sup>3+</sup></small>. CL intensity correlated with PLQY when the saturation regime was not reached and with PLQY/<em>τ</em> in the saturation regime.</p>","PeriodicalId":71,"journal":{"name":"Dalton Transactions","volume":" 45","pages":" 18104-18109"},"PeriodicalIF":3.5000,"publicationDate":"2024-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Dalton Transactions","FirstCategoryId":"92","ListUrlMain":"https://pubs.rsc.org/en/content/articlelanding/2024/dt/d4dt02501f","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, INORGANIC & NUCLEAR","Score":null,"Total":0}
引用次数: 0
Abstract
In order to substitute well-studied but hard-to-deposit inorganic cathodoluminescent (CL) compounds with coordination compounds and organic ligands, it is primarily important to establish CL correlation with photoluminescence and increase CL intensity. In this paper, homo- and mixed-ligand 1,4-terephthalates and naphthalene-2,6-carboxylates of europium were studied, including a novel complex (Eu2(nda)3(BPhen)2(H2O)4) whose crystal structure was determined. They were found to display luminescence of various intensities under excitation by fast electrons, which is characteristic of Eu3+. CL intensity correlated with PLQY when the saturation regime was not reached and with PLQY/τ in the saturation regime.
期刊介绍：
Dalton Transactions is a journal for all areas of inorganic chemistry, which encompasses the organometallic, bioinorganic and materials chemistry of the elements, with applications including synthesis, catalysis, energy conversion/storage, electrical devices and medicine. Dalton Transactions welcomes high-quality, original submissions in all of these areas and more, where the advancement of knowledge in inorganic chemistry is significant.
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