银纳米颗粒增强掺杂锂铝硅玻璃的白光发射

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Abstract：Sm 13+ -doped materials exhibit red and orange emissions in the visible lightregion，showing broad application prospectsinboth laseranddisplaymaterialfields.However，theinherentsmallemissionandabsorptioncrosssections of Sm 3+ result in low luminous efficiency，posing challenges for achieving high-quality solid-state lighting. Here，the excellent white emission of Sm 3+ doped lithium aluminum silicate （LAS）glass was realized by introducing theAg aggregates through Ag ion exchange.Under 395 nm excitation，the Ag-doped samples exhibit significant fluorescence enhancement with color coordinates close to theequal energy white point E（O.33，0.33）and a color rendering index（CRI） of 81.8. The study reveals that the surface plasmon resonance（SPR）effect of Ag nanoparticles enhances the luminescence of Sms+ ，while the energy transfer mechanism between Ag+ and Sm³+ also promotes fluorescence enhancement. By adjusting the concentration of AgNO3 and the exchange time，a series of high-quality fullspectrum white light emissions were obtained，indicating that the Ag ion-exchanged Sm 13+ -doped LAS glass has good application potential inthe developmentofsolid-state lightingdevices.Moreover，variations intheexcitation wavelength can effectively tunetheemisioncolor，furtherdemonstrating the tunabilityand practicalityofthis material in optoelectronic applications.

Key Words：Ag NPs；luminescent properties;rare earth ions;lithium aluminum silicate glass CLC number：O433.54 Document code：A DOI：10.37188/CJL.20250047 CSTR：32170.14.CJL.20250047

摘要：掺杂 Sm3+ 的材料在可见光区域会发出红色和橙色光，在激光和显示材料领域具有广阔的应用前景。（剩余35457字）