Breaking the concentration quenching limit of lanthanide emitter through multi-coupling of confined quasi-0D & 2D energy migration

IF 10.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Science China Chemistry Pub Date : 2024-11-11 DOI:10.1007/s11426-024-2319-9

Yuanchao Lei, Shanshan Zhou, Jianxi Ke, Licheng Yu, Youchao Wei, Yongsheng Liu, Maochun Hong

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引用次数: 0

Abstract

The widespread applications of lanthanide-doped materials have fuelled a growing demand for precise control over the luminescence characteristics of these materials. However, the limitation imposed by concentration quenching remains a major obstacle in achieving efficient luminescence from lanthanide-doped materials. Herein, a novel strategy utilizing Sc₂O₃:Ln³⁺ microflowers to enable confined energy migration in both microscopic quasi-zero-dimensional (0D) and mesoscopic two-dimensional (2D) multi-coupling systems is proposed to overcome the concentration quenching limit of lanthanide emitters and achieve a remarkable doping amount of 48.14% on a single particle without resorting to complex core/multishell structure. Mechanistic studies reveal that the multi-confinement structure effectively restricts the range of energy migration and significantly reduces excitation energy migration to defects. Based on these highly doped Sc₂O₃ microflowers, full spectrum and power-dependent tunable multi-color lanthanide emission in a single particle is successfully achieved. Furthermore, the 2D-encoded patterns derived from these microflowers hold great promise for anti-counterfeiting applications. Our findings emphasize the multi-coupling of confined quasi-0D & 2D energy migration within a well-designed structure, providing valuable insights into concentration quenching mechanisms. This also opens up new opportunities for multi-level anti-counterfeiting systems and information security.

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来源期刊

Science China Chemistry CHEMISTRY, MULTIDISCIPLINARY-

CiteScore

14.40

自引率

7.30%

发文量

3787

审稿时长

2.2 months

期刊介绍： Science China Chemistry, co-sponsored by the Chinese Academy of Sciences and the National Natural Science Foundation of China and published by Science China Press, publishes high-quality original research in both basic and applied chemistry. Indexed by Science Citation Index, it is a premier academic journal in the field. Categories of articles include: Highlights. Brief summaries and scholarly comments on recent research achievements in any field of chemistry. Perspectives. Concise reports on thelatest chemistry trends of interest to scientists worldwide, including discussions of research breakthroughs and interpretations of important science and funding policies. Reviews. In-depth summaries of representative results and achievements of the past 5–10 years in selected topics based on or closely related to the research expertise of the authors, providing a thorough assessment of the significance, current status, and future research directions of the field.