{"title":"Er3+/Yb3+体系中激发红色发射的重要往返能量传递","authors":"Yuchao Shi, Hao Wu*, Huajun Wu, Liangliang Zhang, Guo-hui Pan, Yongshi Luo, Zhendong Hao and Jiahua Zhang*, ","doi":"10.1021/acs.jpclett.4c0361110.1021/acs.jpclett.4c03611","DOIUrl":null,"url":null,"abstract":"<p >Round-trip energy transfer (RTET) in the popular Er<sup>3+</sup>/Yb<sup>3+</sup> upconversion (UC) system is a newly discovered mechanism for the red emission of Er<sup>3+</sup> through Yb<sup>3+</sup> as an intermediate ion. However, the importance of the RTET still remains a question. Here, we show in cubic Y<sub>2</sub>O<sub>3</sub> that the new mechanism defeats conventional ones and dominates the red emission in both UC and down-shifting (DS) luminescence for a wide concentration range of Yb<sup>3+</sup>. The RTET enables the red UC emission to exhibit a similar time evolution as the green UC emission for Yb<sup>3+</sup> concentration ≤10%, and its contribution to the red DS emission exceeds 90% for Yb<sup>3+</sup> concentration ≥10%. As a unique feature, the temporal profile of the entire RTET process is presented for the first time. Our findings provide new physical insight into the regulation of color and temporal behavior of UC luminescence in the Yb<sup>3+</sup>/Er<sup>3+</sup> system.</p>","PeriodicalId":62,"journal":{"name":"The Journal of Physical Chemistry Letters","volume":"16 5","pages":"1336–1342 1336–1342"},"PeriodicalIF":4.6000,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"The Important Round-Trip Energy Transfer for Excitation of the Red Emission in the Er3+/Yb3+ System\",\"authors\":\"Yuchao Shi, Hao Wu*, Huajun Wu, Liangliang Zhang, Guo-hui Pan, Yongshi Luo, Zhendong Hao and Jiahua Zhang*, \",\"doi\":\"10.1021/acs.jpclett.4c0361110.1021/acs.jpclett.4c03611\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p >Round-trip energy transfer (RTET) in the popular Er<sup>3+</sup>/Yb<sup>3+</sup> upconversion (UC) system is a newly discovered mechanism for the red emission of Er<sup>3+</sup> through Yb<sup>3+</sup> as an intermediate ion. However, the importance of the RTET still remains a question. Here, we show in cubic Y<sub>2</sub>O<sub>3</sub> that the new mechanism defeats conventional ones and dominates the red emission in both UC and down-shifting (DS) luminescence for a wide concentration range of Yb<sup>3+</sup>. The RTET enables the red UC emission to exhibit a similar time evolution as the green UC emission for Yb<sup>3+</sup> concentration ≤10%, and its contribution to the red DS emission exceeds 90% for Yb<sup>3+</sup> concentration ≥10%. As a unique feature, the temporal profile of the entire RTET process is presented for the first time. Our findings provide new physical insight into the regulation of color and temporal behavior of UC luminescence in the Yb<sup>3+</sup>/Er<sup>3+</sup> system.</p>\",\"PeriodicalId\":62,\"journal\":{\"name\":\"The Journal of Physical Chemistry Letters\",\"volume\":\"16 5\",\"pages\":\"1336–1342 1336–1342\"},\"PeriodicalIF\":4.6000,\"publicationDate\":\"2025-01-28\",\"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.4c03611\",\"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.4c03611","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
The Important Round-Trip Energy Transfer for Excitation of the Red Emission in the Er3+/Yb3+ System
Round-trip energy transfer (RTET) in the popular Er3+/Yb3+ upconversion (UC) system is a newly discovered mechanism for the red emission of Er3+ through Yb3+ as an intermediate ion. However, the importance of the RTET still remains a question. Here, we show in cubic Y2O3 that the new mechanism defeats conventional ones and dominates the red emission in both UC and down-shifting (DS) luminescence for a wide concentration range of Yb3+. The RTET enables the red UC emission to exhibit a similar time evolution as the green UC emission for Yb3+ concentration ≤10%, and its contribution to the red DS emission exceeds 90% for Yb3+ concentration ≥10%. As a unique feature, the temporal profile of the entire RTET process is presented for the first time. Our findings provide new physical insight into the regulation of color and temporal behavior of UC luminescence in the Yb3+/Er3+ system.
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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