СИНТЕЗ, РАЗМЕРНЫЕ И ОПТИЧЕСКИЕ СВОЙСТВА КВАНТОВЫХ ТОЧЕК NaYF₄:Yb/Er
The paper presents the results of the synthesis of NaYF₄ quantum dots doped with Er³⁺ and Yb³⁺ ions by the solvothermal synthesis method. The particle size was determined by dynamic light scattering (DLS): nanoparticles with a diameter of ~1.3 nm and aggregates of about 3.8×10⁵ nm were detected. Optical analysis showed intense anti-Stokes emission with a maximum at 582 nm, caused by the effective energy transfer Yb³⁺ → Er³⁺. The presence of yellow emission distinguishes the obtained materials from typical NaYF₄:Yb/Er systems, where green and red bands predominate.
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