Self-assembled heavy lanthanide orthovanadate architecture with controlled dimensionality and morphology

Area of Science:

• Materials Science
• Nanotechnology
• Inorganic Chemistry

Background:

• Controlling nanoparticle morphology is crucial for tailoring material properties.
• Solution-based synthesis offers versatile routes for nanomaterial fabrication.

Purpose of the Study:

• To develop a scalable method for synthesizing Yttrium Vanadate (YVO4) with diverse morphologies.
• To investigate the influence of synthesis parameters on YVO4 nanostructure formation.
• To explore the optical properties of YVO4 nanostructures as a function of their size and shape.

Main Methods:

• Complexing-agent-assisted solution route for large-scale synthesis.
• Tuning reaction time, complexing agent/Y3+ molar ratio, and complexing agents to control morphology.
• Synthesis of other lanthanide orthovanadates (LnVO4) by adjusting rare earth precursors.

Main Results:

• Achieved nearly monodisperse YVO4 architectures (persimmon-like, cube-like, nanoparticles) on a large scale.
• Demonstrated effective control over shape and size by adjusting reaction conditions.
• Confirmed that lanthanide orthovanadate morphology is dictated by rare earth ion-complexing agent interactions.
• Observed size- and shape-dependent optical properties (UV absorption, photoluminescence) in YVO4 nanopersimmons.

Conclusions:

• A versatile complexing-agent-assisted solution method enables the large-scale synthesis of YVO4 and other LnVO4 nanostructures with controlled morphologies.
• The study highlights the significant impact of synthesis parameters and ion-ligand interactions on nanostructure formation.
• The tunable optical properties of YVO4 nanopersimmons suggest potential applications in various fields.