Multi-color luminescence stimulus-responsive materials based on lanthanide (Ln³⁺) complexes have attracted increasing interest because of their considerable potential applications in various fields. However, enabling materials with rapidly stimulus-responsive property remains a challenge. Herein, luminescent elastomers were prepared via the coordination of Ln³⁺ ions to nitrogen atoms from terpyridine moieties tethered to the polymer chains composed of polydimethylsiloxane (PDMS) and hexamethylene diisocyanate (HDI) segments. The emitting color of the luminescent elastomers can be simply modulated by changing the excitation wavelengths and altering the Eu³⁺/Tb³⁺ molar ratio. The break/recovery of “antenna effect” between Ln³⁺ and Terpyridyl upon acid-base vapor endow the materials with fast luminescence off/on switching ability. Furthermore, the luminescent elastomers display fast self-healing capability at room temperature due to the attendance of the dynamic Ln-ligand coordination and sufficient mobility of the flexible polymer chains. This work opens up new possibilities for future information encryption to carry more codes by combining the multi-color ability as well as luminescence off/on switching property, and showing the potential application as a powerful tool in the base-acid detector fields.

^{基于镧系元素(Ln 3+} ) 配合物的多色发光刺激响应材料因其在各个领域的巨大潜在应用而引起了越来越多的关注。然而，使材料具有快速刺激响应特性仍然是一个挑战。在此，通过Ln ³⁺离子与来自三联吡啶部分的氮原子的配位制备发光弹性体，该三联吡啶部分束缚在由聚二甲基硅氧烷（PDMS）和六亚甲基二异氰酸酯（HDI）链段组成的聚合物链上。^{通过改变激发波长和改变Eu 3+} /Tb ³⁺摩尔比可以简单地调节发光弹性体的发光颜色。Ln之间“天线效应”的中断/恢复酸碱蒸气中的^{3+和 Terpyridyl 赋予材料快速发光开关能力。}此外，由于动态的 Ln-配体配位和柔性聚合物链的足够流动性，发光弹性体在室温下显示出快速的自愈能力。这项工作通过结合多色能力和发光开关特性，为未来信息加密携带更多代码开辟了新的可能性，并展示了在碱酸检测器领域作为强大工具的潜在应用。