Yue Zhou, Chao Jiang, Zhengxing Wang, Zao Yi* and Xifang Chen*,
{"title":"Mn:CsPb(BrCl)3量子点中光子重吸收和表面等离子体调制激子到掺杂的能量转移动力学","authors":"Yue Zhou, Chao Jiang, Zhengxing Wang, Zao Yi* and Xifang Chen*, ","doi":"10.1021/acs.jpclett.4c0352610.1021/acs.jpclett.4c03526","DOIUrl":null,"url":null,"abstract":"<p >Exciton-to-dopant energy transfer (ET) dynamics of Mn:CsPbX<sub>3</sub> quantum dots (QDs), which is dominated by diverse physical factors, requires more comprehensive understanding. Here, the concentration-dependent photon reabsorption effect on ET dynamics has been meticulously analyzed in colloidal Mn:CsPb(BrCl)<sub>3</sub> QDs. The results indicate that the photons emitted by the smaller QDs are absorbed by the larger QDs, effectively providing additional excitation light to the latter. The reabsorbed photons play a crucial role in significantly enhancing the ET process in the larger QDs. Additionally, the Mn:CsPb(BrCl)<sub>3</sub> QDs/Poly(methyl methacrylate)/Ag/SiO<sub>2</sub> multilayer films were fabricated to study the influence of the surface plasmon (SP) on ET dynamics. The results reveal that resonant energy transfer between excitons and SP via dipole interactions can regulate the ET process and Mn<sup>2+</sup> emission intensity by controlling the distance between the SP and excitons. These findings provide insights into Mn:CsPbX<sub>3</sub> QD ET dynamics and potential methods for controlling their luminescence performance in practical applications.</p>","PeriodicalId":62,"journal":{"name":"The Journal of Physical Chemistry Letters","volume":"16 6","pages":"1620–1628 1620–1628"},"PeriodicalIF":4.6000,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Photon Reabsorption and Surface Plasmon Modulating Exciton-to-Dopant Energy Transfer Dynamics in Mn:CsPb(BrCl)3 Quantum Dots\",\"authors\":\"Yue Zhou, Chao Jiang, Zhengxing Wang, Zao Yi* and Xifang Chen*, \",\"doi\":\"10.1021/acs.jpclett.4c0352610.1021/acs.jpclett.4c03526\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p >Exciton-to-dopant energy transfer (ET) dynamics of Mn:CsPbX<sub>3</sub> quantum dots (QDs), which is dominated by diverse physical factors, requires more comprehensive understanding. Here, the concentration-dependent photon reabsorption effect on ET dynamics has been meticulously analyzed in colloidal Mn:CsPb(BrCl)<sub>3</sub> QDs. The results indicate that the photons emitted by the smaller QDs are absorbed by the larger QDs, effectively providing additional excitation light to the latter. The reabsorbed photons play a crucial role in significantly enhancing the ET process in the larger QDs. Additionally, the Mn:CsPb(BrCl)<sub>3</sub> QDs/Poly(methyl methacrylate)/Ag/SiO<sub>2</sub> multilayer films were fabricated to study the influence of the surface plasmon (SP) on ET dynamics. The results reveal that resonant energy transfer between excitons and SP via dipole interactions can regulate the ET process and Mn<sup>2+</sup> emission intensity by controlling the distance between the SP and excitons. These findings provide insights into Mn:CsPbX<sub>3</sub> QD ET dynamics and potential methods for controlling their luminescence performance in practical applications.</p>\",\"PeriodicalId\":62,\"journal\":{\"name\":\"The Journal of Physical Chemistry Letters\",\"volume\":\"16 6\",\"pages\":\"1620–1628 1620–1628\"},\"PeriodicalIF\":4.6000,\"publicationDate\":\"2025-02-05\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"The Journal of Physical Chemistry Letters\",\"FirstCategoryId\":\"1\",\"ListUrlMain\":\"https://pubs.acs.org/doi/10.1021/acs.jpclett.4c03526\",\"RegionNum\":2,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"The Journal of Physical Chemistry Letters","FirstCategoryId":"1","ListUrlMain":"https://pubs.acs.org/doi/10.1021/acs.jpclett.4c03526","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Photon Reabsorption and Surface Plasmon Modulating Exciton-to-Dopant Energy Transfer Dynamics in Mn:CsPb(BrCl)3 Quantum Dots
Exciton-to-dopant energy transfer (ET) dynamics of Mn:CsPbX3 quantum dots (QDs), which is dominated by diverse physical factors, requires more comprehensive understanding. Here, the concentration-dependent photon reabsorption effect on ET dynamics has been meticulously analyzed in colloidal Mn:CsPb(BrCl)3 QDs. The results indicate that the photons emitted by the smaller QDs are absorbed by the larger QDs, effectively providing additional excitation light to the latter. The reabsorbed photons play a crucial role in significantly enhancing the ET process in the larger QDs. Additionally, the Mn:CsPb(BrCl)3 QDs/Poly(methyl methacrylate)/Ag/SiO2 multilayer films were fabricated to study the influence of the surface plasmon (SP) on ET dynamics. The results reveal that resonant energy transfer between excitons and SP via dipole interactions can regulate the ET process and Mn2+ emission intensity by controlling the distance between the SP and excitons. These findings provide insights into Mn:CsPbX3 QD ET dynamics and potential methods for controlling their luminescence performance in practical applications.
期刊介绍：
The Journal of Physical Chemistry (JPC) Letters is devoted to reporting new and original experimental and theoretical basic research of interest to physical chemists, biophysical chemists, chemical physicists, physicists, material scientists, and engineers. An important criterion for acceptance is that the paper reports a significant scientific advance and/or physical insight such that rapid publication is essential. Two issues of JPC Letters are published each month.
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