饵敏化的纳米粒子宽带近红外发光

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Abstract：Broadband near-infrared（NIR）luminescent materials have shown great promise in applications such as optical communication，biomedicine，and optoelectronic devices.However，the current research is focusedonphosphorsand glases，anditisimportanttodevelopbroadbandNIRluminescentnanomaterials.Here，wereportanerbium-sensitizedcore-shell nanocrystal design forbroadband NIRemision.Basedonthestructural design with suitable dopings of Tm³+ and Ho3+ ，the broadband NIR emission covering 1.5-2.1 μm region is achieved under 980 nm and 808 nm excitations.Moreover，the emission intensity is further enhanced by introducing Yb3+ and Nd³+ into the sample，respectively，and the energy transfer processes betweenthem are systematically discussed.Our results presenta novel approach for developing broadband NIR luminescent materials and devices.

Key Words：broadband near-infrared luminescence;lanthanide ions；core-shellstructure；energy transfer

CLCnumber：O482.31 Documentcode：A

DOI：10.37188/CJL.20250055 CSTR：32170.14.CJL.20250055

摘要：宽带近红外发光材料在光通信、生物医学、光电器件等领域具有重要应用。（剩余19533字）