Multiresponsive Luminescence Materials: Richer Color Than Chameleon Materials

摘要

Developing light-harvesting materials with tunable emission colors is highly desirable in applications requiring a specific color on-demand. The modulation in material composition, structures, and polymerization can provide a useful tool for producing a wide range of emission colors. However, controlling the color gamut in a ready-made material remains a formidable challenge. Here, several germinate-based phosphors are reported that provide precise dynamic emission color tuning in the visible color range through the optical multiplexing of lanthanides and other ion dopants, such as lead (Pb2+) and manganese (Mn2+). The emission gamut of the developed germinate-based materials in the full visible color range can be tuned on demand by adjusting the excitation wavelength, thereby allowing dynamic synergistic multicolor, multitemporal, and multimodal integration with ready-made materials. The multicolored photoluminescence property of the developed phosphors is related to the different interaction modes of dopants in the crystals. Furthermore, the applications of color-tunable phosphors in multicolor display and anticounterfeiting are demonstrated. These findings provide valuable insights toward developing next-generation smart luminescent materials and sensors.