Room-temperature phosphorescence (RTP) materials renowned for their long emission lifetime have garnered tremendous research interest not only for elucidating their underlying mechanisms but also for exploring their potential applications in anti-counterfeiting, encryption, and bioimaging. Nevertheless, the RTP color of most organic materials has been limited to blue, green, and yellow. In this study, a series of red RTP materials have been successfully fabricated at a large scale through a straightforward molecular doping strategy. Remarkably, the doped materials exhibited red RTP at 622 nm and 678 nm with an ultralong lifetime of 373 ms and an efficiency of 5.21 %, which was among the best performances reported for organic RTP materials. The systematic investigation unveiled that the efficient RTP emanated from the robust interactions between the emitter and matrix molecules as well as the formation of D/A exciplexes. Furthermore, the red RTP materials could be easily manufactured into diverse forms, including fine powders, aqueous inks, and nanoparticles. Their multifunctional applications in fingerprint recognition, encryption, and live bioimaging were demonstrated. With distinctive advantages such as red RTP, ultralong lifetime, scalable production, and cost-effectiveness, these RTP materials pave the way for the extensive utilization of organic RTP materials in various engineering sectors.

中文翻译：

---

通过分子掺杂策略可扩展制造红色室温磷光材料，用于多种应用


室温磷光（RTP）材料以其长发射寿命而闻名，引起了巨大的研究兴趣，不仅是为了阐明其基本机制，而且还为了探索其在防伪、加密和生物成像方面的潜在应用。然而，大多数有机材料的RTP颜色仅限于蓝色、绿色和黄色。在这项研究中，通过简单的分子掺杂策略成功地大规模制造了一系列红色RTP材料。值得注意的是，掺杂材料在 622 nm 和 678 nm 处表现出红色 RTP，具有 373 ms 的超长寿命和 5.21% 的效率，这是有机 RTP 材料报道的最佳性能之一。系统研究表明，有效的 RTP 源于发射体和基质分子之间的强大相互作用以及 D/A 激基复合物的形成。此外，红色RTP材料可以很容易地制成多种形式，包括细粉、水性墨水和纳米颗粒。展示了它们在指纹识别、加密和活体生物成像方面的多功能应用。这些RTP材料具有红色RTP、超长寿命、可规模化生产和成本效益等独特优势，为有机RTP材料在各个工程领域的广泛应用铺平了道路。