Lanthanide-guided multi-color controllable composite phosphors with warm white light and multi-channel fluorescence labeling application strategy

Due to the difficulty of luminescence intensity optimization and color control, the research on the regulatable warm white light emitting devices and fluorescent labels for multi-color detection is ongoing. The Ln 3+ -Bi 2 (PTA) 3 /Bi 2 O 3 phosphors with rod-shaped structure were prepared by one-step hydrothermal method, and the incorporation of Bi 2 O 3 and terephthalic acid (PTA) ligand effectively magnifies the absorption ability for the photons to enhance the emission intensity. The mono lanthanide-doped Dy-Bi 2 (PTA) 3 /Bi 2 O 3 exhibits pure cool white light, and it can be transformed to warm white light with the co-doped Eu 3+ amount increasing. Eu 3+ -Tb 3+ -Bi 2 (PTA) 3 /Bi 2 O 3 can emit red and green light, which is used as the multi-color fluorescence labeling, and the mixed formed yellow light fills the blank of the yellow lighting device.