Tuhin Samanta, Amar Nath Yadav, Joo Hyeong Han, Minji Kim, Sung Woo Jang, Noolu Srinivasa Manikanta Viswanath, Won Bin Im
{"title":"Cerium-Sensitized Highly Emissive 0D Cesium Cerium Terbium Chloride Alloy Nanocrystals for White Light Emission","authors":"Tuhin Samanta, Amar Nath Yadav, Joo Hyeong Han, Minji Kim, Sung Woo Jang, Noolu Srinivasa Manikanta Viswanath, Won Bin Im","doi":"10.1002/adom.202400909","DOIUrl":null,"url":null,"abstract":"<p>Recently, lanthanide-based 0D metal halides have garnered considerable attention owing to their applications in light–emitting diodes (LEDs), X-ray imaging, and photodetectors. Among these materials, 0D Cs<sub>3</sub>TbCl<sub>6</sub> (CTC) nanocrystals (NCs) have demonstrated promising performance in X-ray imaging and light-emitting diodes. However, a considerable drawback of CTC NCs is their limited absorption coefficient in the UV-A region (315–380 nm). To address this limitation and enhance the absorption coefficient in the UV-A region, Ce<sup>3+</sup> is incorporated into CTC NCs—advantageous owing to the high absorption coefficient of Ce<sup>3+</sup> in the UV-A region, attributed to—<i>4f</i>-<i>5d</i> orbital coupling. In addition, Ce<sup>3+</sup> ions sensitize the luminescence of CTC NCs and enhance the photoluminescence quantum yield from 75% to 87%. Energy transfer from Ce<sup>3+</sup> to Tb<sup>3+</sup> is investigated at different dopant ratios. Furthermore, Cs<sub>3</sub>CeTbCl<sub>6</sub> (CCTC) NCs have been utilized in white LED devices. Understanding such competitive energy transfer in lanthanide-based perovskite-inspired metal halides will facilitate the development of novel luminescent metal halides for lighting applications.</p>","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":null,"pages":null},"PeriodicalIF":8.0000,"publicationDate":"2024-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adom.202400909","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advanced Optical Materials","FirstCategoryId":"88","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/adom.202400909","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
Recently, lanthanide-based 0D metal halides have garnered considerable attention owing to their applications in light–emitting diodes (LEDs), X-ray imaging, and photodetectors. Among these materials, 0D Cs3TbCl6 (CTC) nanocrystals (NCs) have demonstrated promising performance in X-ray imaging and light-emitting diodes. However, a considerable drawback of CTC NCs is their limited absorption coefficient in the UV-A region (315–380 nm). To address this limitation and enhance the absorption coefficient in the UV-A region, Ce3+ is incorporated into CTC NCs—advantageous owing to the high absorption coefficient of Ce3+ in the UV-A region, attributed to—4f-5d orbital coupling. In addition, Ce3+ ions sensitize the luminescence of CTC NCs and enhance the photoluminescence quantum yield from 75% to 87%. Energy transfer from Ce3+ to Tb3+ is investigated at different dopant ratios. Furthermore, Cs3CeTbCl6 (CCTC) NCs have been utilized in white LED devices. Understanding such competitive energy transfer in lanthanide-based perovskite-inspired metal halides will facilitate the development of novel luminescent metal halides for lighting applications.
期刊介绍:
Advanced Optical Materials, part of the esteemed Advanced portfolio, is a unique materials science journal concentrating on all facets of light-matter interactions. For over a decade, it has been the preferred optical materials journal for significant discoveries in photonics, plasmonics, metamaterials, and more. The Advanced portfolio from Wiley is a collection of globally respected, high-impact journals that disseminate the best science from established and emerging researchers, aiding them in fulfilling their mission and amplifying the reach of their scientific discoveries.