Jinhu Guo, Qianwei Wang, Qi Wu, Xinyu Yang, Mengxuan Fang, Yang Li, Li Zhang, Longcheng Wang
{"title":"抑制天线效应的g- c3n4集成Ln-MOF复合材料协同增强wled白光","authors":"Jinhu Guo, Qianwei Wang, Qi Wu, Xinyu Yang, Mengxuan Fang, Yang Li, Li Zhang, Longcheng Wang","doi":"10.1007/s13391-025-00578-4","DOIUrl":null,"url":null,"abstract":"<div><p>This study proposes a novel strategy to enhance the performance of white light-emitting diodes (WLEDs) by integrating graphitic carbon nitride (g-C<sub>3</sub>N<sub>4</sub>) as an independent blue emitter into Tb<sup>3+</sup>/Eu<sup>3+</sup>-doped lanthanide metal–organic frameworks (Ln-MOFs). Traditional Ln-MOF-based WLEDs suffer from low luminous efficiency due to the Antenna Effect, which compromises energy transfer between ligands and lanthanide ions. By incorporating g-C<sub>3</sub>N<sub>4</sub> with high-concentration Tb<sup>3+</sup>/Eu<sup>3+</sup>-doped Ln-MOFs, the optimized composite material, g-C<sub>3</sub>N<sub>4</sub>@Tb<sub>0.95</sub>Eu<sub>0.05</sub>-MOF, demonstrated remarkable improvements in photoluminescence properties. Compared to conventional Gd<sub>0.978</sub>Tb<sub>0.02</sub>Eu<sub>0.002</sub>-MOF, the composite achieved a luminous flux of 1.24 lm, luminous efficacy of 1.66 lm/W, and color rendering index (CRI) of 91.6, representing 10.34-fold, 9.23-fold, and 9.0 enhancements, respectively. Mechanistic studies revealed no energy transfer between g-C<sub>3</sub>N<sub>4</sub> and Ln<sup>3+</sup> ions, enabling stable blue emission from g-C<sub>3</sub>N<sub>4</sub> while high-concentration Tb<sup>3+</sup> and Eu<sup>3+</sup> ions enhanced green and red emissions. This work provides a promising approach for designing high-performance WLEDs.</p><h3>Graphic Abstract</h3>\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":536,"journal":{"name":"Electronic Materials Letters","volume":"21 4","pages":"599 - 612"},"PeriodicalIF":2.6000,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Synergistic Enhancement of White Luminescence in WLEDs via g-C3N4-Integrated Ln-MOF Composites with Suppressed Antenna Effect\",\"authors\":\"Jinhu Guo, Qianwei Wang, Qi Wu, Xinyu Yang, Mengxuan Fang, Yang Li, Li Zhang, Longcheng Wang\",\"doi\":\"10.1007/s13391-025-00578-4\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>This study proposes a novel strategy to enhance the performance of white light-emitting diodes (WLEDs) by integrating graphitic carbon nitride (g-C<sub>3</sub>N<sub>4</sub>) as an independent blue emitter into Tb<sup>3+</sup>/Eu<sup>3+</sup>-doped lanthanide metal–organic frameworks (Ln-MOFs). Traditional Ln-MOF-based WLEDs suffer from low luminous efficiency due to the Antenna Effect, which compromises energy transfer between ligands and lanthanide ions. By incorporating g-C<sub>3</sub>N<sub>4</sub> with high-concentration Tb<sup>3+</sup>/Eu<sup>3+</sup>-doped Ln-MOFs, the optimized composite material, g-C<sub>3</sub>N<sub>4</sub>@Tb<sub>0.95</sub>Eu<sub>0.05</sub>-MOF, demonstrated remarkable improvements in photoluminescence properties. Compared to conventional Gd<sub>0.978</sub>Tb<sub>0.02</sub>Eu<sub>0.002</sub>-MOF, the composite achieved a luminous flux of 1.24 lm, luminous efficacy of 1.66 lm/W, and color rendering index (CRI) of 91.6, representing 10.34-fold, 9.23-fold, and 9.0 enhancements, respectively. Mechanistic studies revealed no energy transfer between g-C<sub>3</sub>N<sub>4</sub> and Ln<sup>3+</sup> ions, enabling stable blue emission from g-C<sub>3</sub>N<sub>4</sub> while high-concentration Tb<sup>3+</sup> and Eu<sup>3+</sup> ions enhanced green and red emissions. This work provides a promising approach for designing high-performance WLEDs.</p><h3>Graphic Abstract</h3>\\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>\",\"PeriodicalId\":536,\"journal\":{\"name\":\"Electronic Materials Letters\",\"volume\":\"21 4\",\"pages\":\"599 - 612\"},\"PeriodicalIF\":2.6000,\"publicationDate\":\"2025-05-21\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Electronic Materials Letters\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s13391-025-00578-4\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Electronic Materials Letters","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s13391-025-00578-4","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Synergistic Enhancement of White Luminescence in WLEDs via g-C3N4-Integrated Ln-MOF Composites with Suppressed Antenna Effect
This study proposes a novel strategy to enhance the performance of white light-emitting diodes (WLEDs) by integrating graphitic carbon nitride (g-C3N4) as an independent blue emitter into Tb3+/Eu3+-doped lanthanide metal–organic frameworks (Ln-MOFs). Traditional Ln-MOF-based WLEDs suffer from low luminous efficiency due to the Antenna Effect, which compromises energy transfer between ligands and lanthanide ions. By incorporating g-C3N4 with high-concentration Tb3+/Eu3+-doped Ln-MOFs, the optimized composite material, g-C3N4@Tb0.95Eu0.05-MOF, demonstrated remarkable improvements in photoluminescence properties. Compared to conventional Gd0.978Tb0.02Eu0.002-MOF, the composite achieved a luminous flux of 1.24 lm, luminous efficacy of 1.66 lm/W, and color rendering index (CRI) of 91.6, representing 10.34-fold, 9.23-fold, and 9.0 enhancements, respectively. Mechanistic studies revealed no energy transfer between g-C3N4 and Ln3+ ions, enabling stable blue emission from g-C3N4 while high-concentration Tb3+ and Eu3+ ions enhanced green and red emissions. This work provides a promising approach for designing high-performance WLEDs.
期刊介绍：
Electronic Materials Letters is an official journal of the Korean Institute of Metals and Materials. It is a peer-reviewed international journal publishing print and online version. It covers all disciplines of research and technology in electronic materials. Emphasis is placed on science, engineering and applications of advanced materials, including electronic, magnetic, optical, organic, electrochemical, mechanical, and nanoscale materials. The aspects of synthesis and processing include thin films, nanostructures, self assembly, and bulk, all related to thermodynamics, kinetics and/or modeling.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
