Mayavan Abinaya, Kannan Aarthi, Gandhi Sakthivel
Department of Chemistry, School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur, 613401, India.
Centre for Nanotechnology & Advanced Biomaterials, SASTRA Deemed University, Thanjavur, 613401, India.
Front Optoelectron. 2025 Apr 9;18(1):8. doi: 10.1007/s12200-025-00150-w.
Silica nanoparticles were used to develop a bluish-green emitting BaSiO:Eu phosphor, demonstrating their potential for white light applications. The phosphor showed a 48% enhancement of emission intensity compared to conventional silica-assisted phosphors. The use of silica nanoparticles as a precursor could lead to the creation of a more homogeneous distribution of cations and dopant ions. This uniform distribution could facilitate the proper infusion of dopants into the crystal host, resulting in improved emission. The phosphor exhibited high thermal stability, with 56% of its luminescence intensity maintained even at 190 °C compared to room temperature. To reduce thermal stress, a flexible remote phosphor has been developed successfully using optimized silica nanoparticles assisted BaSiO:Eu phosphor.
二氧化硅纳米颗粒被用于开发一种发出蓝绿色光的BaSiO:Eu磷光体，展示了其在白光应用方面的潜力。与传统的二氧化硅辅助磷光体相比，该磷光体的发射强度提高了48%。使用二氧化硅纳米颗粒作为前驱体可导致阳离子和掺杂离子形成更均匀的分布。这种均匀分布有助于将掺杂剂适当注入晶体基质中，从而改善发光。该磷光体表现出高热稳定性，即使在190°C时，与室温相比仍保持其发光强度的56%。为了降低热应力，已成功使用优化的二氧化硅纳米颗粒辅助BaSiO:Eu磷光体开发出一种柔性远程磷光体。
