Solid‐state‐lighting (SSL) is a new lighting technology that is rapidly replacing conventional lighting sources because it is much more energy efficient, longer lasting, and contributes significantly to environmental protection. A main branch of SSL technology is light‐emitting diodes (LEDs), and white‐light LEDs (WLEDs) are in the greatest demand for general lighting and illumination applications. Current WLED devices rely heavily on rare‐earth elements (REEs), which will likely suffer from cost and supply risks and environmental consequences in the near future. Crystalline inorganic–organic hybrid materials based on I–VII binary semiconductors represent a promising material class as REE‐free phosphor alternatives. This article provides a brief overview of recent advancement on this material family, with a focus on the rational design, energy‐efficient and low‐cost synthesis, systematic modification, and optimization of their electronic, optical, and thermal properties. A particular emphasis will be made on our own progress over the past several years in developing four classes of CuI(L) structures with substantially improved performance as energy‐saving lighting phosphors. General strategies for structural design, synthesis, and property optimization of these materials will also be discussed.

中文翻译：

---

用于高效节能通用照明技术的基于碘化铜的混合荧光粉

固态照明（SSL）是一种新兴的照明技术，正在迅速取代传统的光源，因为它具有更高的能源效率，更持久的使用寿命，并为环境保护做出了巨大贡献。SSL技术的主要分支是发光二极管（LED），而白光LED（WLED）对常规照明和照明应用的需求最大。当前的WLED器件严重依赖稀土元素（REE），在不久的将来，稀土元素可能会遭受成本和供应风险以及环境后果的困扰。基于I-VII二元半导体的无机无机有机结晶材料代表了有前途的材料类别，可作为无REE磷光体的替代品。本文简要概述了该材料系列的最新进展，重点是合理设计，高效，低成本的合成，系统修改以及优化其电子，光学和热学性质。我们将特别强调我们在过去几年中在开发四类CuI（L）具有显着改善的性能的节能照明磷光体。还将讨论这些材料的结构设计，合成和性能优化的一般策略。