Unveiling plasmonic marvels: Enhanced up-conversion efficiency in Y2SiO5:Pr3+ phosphors through controlled shell encapsulation

초록

In the pursuit of efficient up-conversion materials, praseodymium-doped yttrium orthosilicate (Y<inf>2</inf>SiO<inf>5</inf>:Pr3+) stands out, yet its potential is hindered by limited conversion efficiency. To overcome this challenge, we harness the power of plasmonic particles, which have the ability to amplify light in up-conversion nanomaterials. However, the ever-looming quenching effect threatens these enhancements. In our study, we introduce a novel approach by synthesizing hollow shell Y<inf>2</inf>SiO<inf>5</inf>-coated particles with precise control over shell thickness. This innovation not only boosts photoluminescence intensity but also serves as a protective barrier, preventing quenching effects by isolating plasmonic particles from up-conversion nanoparticles. Our results reveal that this strategic synergy, combining Y<inf>2</inf>SiO<inf>5</inf> with AgAu<inf>3</inf>@SiO<inf>2</inf> nanoparticles, promises a substantial increase in efficiency. By effectively nullifying quenching effects and maintaining optimal SiO<inf>2</inf> content, this approach marks a significant stride in enhancing Y<inf>2</inf>SiO<inf>5</inf> up-conversion efficiency through the integration of plasmonic materials. © 2024 Acta Materialia Inc.

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