The development of novel, efficient and cost-effective emitters for solid-state lighting devices (SSLDs) is ubiquitous to meet the increasingly demanding needs of advanced lighting technologies. In this context, the emergence of thermally activated delayed fluorescence (TADF) materials has stunned the photonics community. In particular, inorganic TADF material-based compounds can be ad hoc engineered by chemical modification of the coordinated ligands and the type of metal centre, allowing control of their ultimate photo-/electroluminescence properties, while providing a viable emitter platform for enhancing the efficiency of state-of-the-art organic light-emitting diodes (OLEDs) and light-emitting electrochemical cells (LECs). By presenting an overview of the state of the art of all metal complex-based TADF compounds, this review aims to provide a comprehensive, authoritative and critical reference for their design, characterization and device application, highlighting the advantages and drawbacks for the chemical, photonic and optoelectronic communities involved in this interdisciplinary research field.

中文翻译：

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基于金属络合物的 TADF：设计、表征和照明器件


为固态照明设备 （SSLD） 开发新颖、高效且具有成本效益的发射器无处不在，以满足对先进照明技术日益增长的需求。在此背景下，热激活延迟荧光 （TADF） 材料的出现震惊了光子学界。特别是，基于无机 TADF 材料的化合物可以通过对配位配体和金属中心类型进行化学改性进行临时工程改造，从而控制其最终的光/电致发光特性，同时为提高最先进的有机发光二极管 （OLED） 和发光电化学电池 （LEC） 的效率提供可行的发射器平台。通过概述所有基于金属络合物的 TADF 化合物的最新技术，本文旨在为其设计、表征和器件应用提供全面、权威和关键的参考，突出该跨学科研究领域涉及的化学、光子和光电界的优缺点。