Design of Eu(TTA)3phen-incorporated SiO2-coated transition metal oxide nanoparticles for efficient luminescence and magnetic performance. Issue 9 (10th February 2023)

• Record Type: Journal Article
• Authors: Hong, Yun-Kun; Kim, Hyun Tae; Park, Yoonsu; Jeong, Wooseok; Kim, Minyoung; Hwang, Eunseo; Hwang, Yun Jae; Lee, Min-Ho; Ha, Don-Hyung
• Is Part Of: Nanoscale. Volume 15:Issue 9(2023)
• Page Start: 4604
• Page End: 4611
• Publication Date: 2023-02-10
• Subjects: Nanoscience -- Periodicals; Nanotechnology -- Periodicals; 620.505
• DOI: 10.1039/d2nr05439f
• Languages: English
• ISSNs: 2040-3364

Abstract

Abstract : We demonstrate the design of multifunctional nanoparticles (NPs) via double layer approach. This approach is suitable for applying the synthesis of luminescent and magnetic NPs with long-term luminescence stability and paramagnetic properties. Abstract : The development of multifunctional nanoparticles (NPs) combining individual properties, such as magnetic, luminescence, and optical properties, has attracted significant research interest. In this study, europium (Eu)-incorporating iron oxide nanoparticles (IONPs) with Eu(TTA)3 phen (ET-SIOPs) were successfully designed and shown to have luminescence and magnetic properties. The proposed synthetic method has three steps: (1) IONP synthesis, (2) SiO2 layer coating (1st coating), and (3) Eu–SiO2 layer coating (2nd coating). The morphology of the ET-SIOPs was well preserved after the 2nd coating was conducted. According to the photoluminescence (PL) spectra in the range of 500 to 700 nm, the Eu-incorporating SIOPs with Eu(TTA)3 phen (ET-SIOPs) exhibited the highest emission intensity compared to the Eu-incorporating SIOPs synthesized with other Eu precursors. Furthermore, the ET-SIOPs exhibited long-term luminescence stability of 6 months. In addition, this method of double-layer coating can be applied to other materials synthesized with different compositions and shapes, such as MnO and SiO2 NPs. The findings of this study will not only provide new insights for the synthesis of luminescent-magnetic NPs with long-term luminescence stability and paramagnetic properties, but can also be applied for the design of various multifunctional NPs.