Deep Eutectic Solvent Matrix for Hybrid Indium Chloride Glasses With Tunable Luminescence
Ya Jiang1, Zhishan Luo1, Yulian Liu1
1Department of Chemistry and Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology (SUSTech), Shenzhen, China.
Angewandte Chemie (International Ed. in English)
|July 21, 2026
Summary
Researchers developed a deep eutectic solvent (DES) strategy to create novel hybrid metal halide (HMH) glasses. This method suppresses crystallization, enabling advanced photofunctional materials with tunable luminescence for anti-counterfeiting applications.
Area of Science:
- Materials Science
- Photonic Materials
- Glass Chemistry
Background:
- Hybrid metal halide (HMH) glasses show promise for photonic applications.
- High crystallization propensity hinders HMH glass development.
Purpose of the Study:
- To overcome crystallization barriers in HMH glasses.
- To develop a novel strategy for fabricating amorphous HMH glasses with tunable luminescence.
Main Methods:
- A deep eutectic solvent (DES)-mediated strategy using 3-aminopiperidine dihydrochloride and 2-hydroxypropionamide.
- Kinetically suppressing long-range ordering via a dynamically crosslinked hydrogen-bonding network.
- Incorporating [SbCl6]3- centers and organic fluorophores for luminescence modulation.
Main Results:
- Fabrication of amorphous indium chloride glasses with suppressed crystallinity.
- Achieved efficient intersystem crossing and minimized nonradiative dissipation.
- Demonstrated broad-spectrum luminescence (blue to red) with a maximum lifetime of 283.41 ms and 46.90% photoluminescence quantum yield.
- Integrated prompt fluorescence, self-trapped exciton emission, and room-temperature phosphorescence.
Conclusions:
- Deep eutectic solvent (DES) chemistry is a versatile approach for customizing HMH glasses.
- The developed glasses offer potential for multilevel anti-counterfeiting and spatiotemporal information encoding.
- Paved the way for programmable, high-performance photofunctional materials.
