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Related Experiment Video

Updated: Jan 29, 2026

Synthesis of Core-shell Lanthanide-doped Upconversion Nanocrystals for Cellular Applications

Synthesis of Core-shell Lanthanide-doped Upconversion Nanocrystals for Cellular Applications

Published on: November 10, 2017

Multi-Emissive Lanthanide-Based Coordination Polymers for Potential Application as Luminescent Bar-Codes.

Jinzeng Wang¹, Yan Suffren¹, Carole Daiguebonne¹

¹Univ Rennes, INSA Rennes, ENSCR, CNRS UMR6226 "Institut des Sciences Chimiques de Rennes″ , F-35000 Rennes , France.

Inorganic Chemistry

|February 8, 2019

Summary

Lanthanide coordination polymers exhibit bright luminescence and tunable properties. A novel material with six lanthanide ions shows rich visible and NIR emissions, ideal for luminescent bar-codes.

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Area of Science:

Materials Science
Inorganic Chemistry
Luminescence

Background:

Lanthanide-based coordination polymers offer unique luminescent properties.
Isostructural polymers [Ln₂(mip)₃(H₂O)₈·4H₂O]∞ are synthesized from lanthanide chlorides and 5-methoxyisophthalate.
Homo-lanthanide compounds display high luminescence brightness.

Purpose of the Study:

To design hetero-lanthanide coordination polymers with tunable luminescence.
To investigate the luminescent properties of a multi-lanthanide molecular alloy.

Main Methods:

Synthesis of isostructural lanthanide coordination polymers in water.
Preparation of a molecular alloy containing six different lanthanide ions (Nd³⁺, Sm³⁺, Eu³⁺, Gd³⁺, Tb³⁺, Dy³⁺).
Spectroscopic analysis of luminescence properties under UV excitation (λexc = 325 nm).

Main Results:

The synthesized coordination polymers exhibit high luminescence brightness.
A hetero-lanthanide alloy demonstrated tunable luminescence properties.
The alloy displayed approximately 20 emission peaks in visible and NIR regions at room temperature.

Conclusions:

Weak intermetallic energy transfer enables the design of hetero-lanthanide materials.
The multi-lanthanide alloy exhibits an unprecedented richness of emission spectra.
These findings suggest potential applications in luminescent bar-coding.