Single-component white-light-emitting materials based on lanthanide coordination assemblies

Area of Science:

• Materials Science
• Photochemistry
• Nanotechnology

Background:

• White light-emitting materials (WLEMs) offer advantages over traditional lighting, including energy efficiency and suitability for thin-film fabrication.
• Single-component emitters based on lanthanide coordination assemblies are desirable for thinner, easily controlled devices but remain rare.
• Lanthanide coordination assemblies are gaining attention for their photoluminescent properties, enabling advancements in WLEMs.

Purpose of the Study:

• To review recent progress in single-component lanthanide coordination assemblies for white light emission.
• To emphasize the photoluminescent color-tuning properties of these materials.
• To explore the origin, generation, and manipulation of photoluminescence in these assemblies.

Main Methods:

• Review of scientific literature on lanthanide coordination assemblies.
• Analysis of photoluminescence mechanisms, including ligand-centered fluorescence and metal-centered emissions.
• Focus on specific lanthanide ions such as samarium (Sm³⁺), europium (Eu³⁺), and dysprosium (Dy³⁺).

Main Results:

• Single-component lanthanide coordination assemblies demonstrate potential as efficient WLEMs.
• Photoluminescent color tuning is achievable through manipulation of ligand and metal-centered emissions.
• Ligand-centered fluorescence in the blue range and metal-centered emissions in the visible region contribute to white light generation.

Conclusions:

• Single-component lanthanide coordination assemblies represent a promising pathway for developing advanced WLEMs.
• Further research into controlling photoluminescence is crucial for optimizing device performance.
• These materials offer a viable alternative for next-generation lighting and display technologies.