Yuanjun Ma, Lilan Wu, Xueyan Ren, Yongqiang Zhang, Siyu Lu
{"title":"在室温下在空气中简单搅拌制备公斤级全彩色碳点","authors":"Yuanjun Ma, Lilan Wu, Xueyan Ren, Yongqiang Zhang, Siyu Lu","doi":"10.1002/adfm.202305867","DOIUrl":null,"url":null,"abstract":"<p>Large-scale production of full-color carbon dots (CDs) at room temperature under atmospheric pressure will promote their industrial application. Herein, o-phenylenediamine is used as a single-precursor carbon source and hydrogen peroxide as an oxidant. Kilogram-scale CDs are obtained by stirring these reactants at room temperature in air for 30 min. After purification and acid treatment, blue-, green-, and red-fluorescence CDs with photoluminescence peaks at 481, 539, and 625 nm are obtained with quantum yields of 21.76%, 27.12%, and 13.06%, respectively. Based on chemical structural characterizations, a reasonable formation mechanism is deduced, with blue, green, and red fluorescence arising from carbon nuclei stacked in conjugate planes containing fragments of quinoxaline, 2,3-diaminophenazine (2,3-DAPN), and protonated 2,3-DAPN, respectively. High-quality multi-color and white light-emitting diodes are successfully fabricated to demonstrate potential commercial applications in display and illumination.</p>","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":null,"pages":null},"PeriodicalIF":18.5000,"publicationDate":"2023-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"5","resultStr":"{\"title\":\"Toward Kilogram-Scale Preparation of Full-Color Carbon Dots by Simply Stirring at Room Temperature in Air\",\"authors\":\"Yuanjun Ma, Lilan Wu, Xueyan Ren, Yongqiang Zhang, Siyu Lu\",\"doi\":\"10.1002/adfm.202305867\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Large-scale production of full-color carbon dots (CDs) at room temperature under atmospheric pressure will promote their industrial application. Herein, o-phenylenediamine is used as a single-precursor carbon source and hydrogen peroxide as an oxidant. Kilogram-scale CDs are obtained by stirring these reactants at room temperature in air for 30 min. After purification and acid treatment, blue-, green-, and red-fluorescence CDs with photoluminescence peaks at 481, 539, and 625 nm are obtained with quantum yields of 21.76%, 27.12%, and 13.06%, respectively. Based on chemical structural characterizations, a reasonable formation mechanism is deduced, with blue, green, and red fluorescence arising from carbon nuclei stacked in conjugate planes containing fragments of quinoxaline, 2,3-diaminophenazine (2,3-DAPN), and protonated 2,3-DAPN, respectively. High-quality multi-color and white light-emitting diodes are successfully fabricated to demonstrate potential commercial applications in display and illumination.</p>\",\"PeriodicalId\":112,\"journal\":{\"name\":\"Advanced Functional Materials\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":18.5000,\"publicationDate\":\"2023-08-17\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"5\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Advanced Functional Materials\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1002/adfm.202305867\",\"RegionNum\":1,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advanced Functional Materials","FirstCategoryId":"88","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/adfm.202305867","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
Toward Kilogram-Scale Preparation of Full-Color Carbon Dots by Simply Stirring at Room Temperature in Air
Large-scale production of full-color carbon dots (CDs) at room temperature under atmospheric pressure will promote their industrial application. Herein, o-phenylenediamine is used as a single-precursor carbon source and hydrogen peroxide as an oxidant. Kilogram-scale CDs are obtained by stirring these reactants at room temperature in air for 30 min. After purification and acid treatment, blue-, green-, and red-fluorescence CDs with photoluminescence peaks at 481, 539, and 625 nm are obtained with quantum yields of 21.76%, 27.12%, and 13.06%, respectively. Based on chemical structural characterizations, a reasonable formation mechanism is deduced, with blue, green, and red fluorescence arising from carbon nuclei stacked in conjugate planes containing fragments of quinoxaline, 2,3-diaminophenazine (2,3-DAPN), and protonated 2,3-DAPN, respectively. High-quality multi-color and white light-emitting diodes are successfully fabricated to demonstrate potential commercial applications in display and illumination.
期刊介绍:
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