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AIE-Active Zr-Organic Gels for Luminescent Solar Concentrators
Haijiang Bian1, Zipeng Wang1, Qiang Jing2
1School of Environmental and Material Engineering Yantai University, Yantai 264005, China.
Inorganic Chemistry
|May 30, 2025
Summary
This study presents a novel zirconium-based organic gel (Zr-Gel) with aggregation-induced emission (AIE) properties. The Zr-Gel demonstrates high quantum yield and potential for advanced optoelectronic devices and luminescent solar concentrators (LSCs).
Area of Science:
- Materials Science
- Organic Chemistry
- Nanotechnology
Background:
- Metal-organic gels (MOGs) are advanced soft materials with tunable properties due to their metal-ligand frameworks.
- These materials offer high functionalization, plasticity, and chemical stability, making them attractive for various applications.
- Aggregation-induced emission (AIE) is a phenomenon where molecules become more luminescent upon aggregation, offering unique optical properties.
Purpose of the Study:
- To synthesize and characterize a novel zirconium-based organic gel (Zr-Gel) exhibiting AIE.
- To evaluate the luminescent properties of the Zr-Gel, including its excitation range, intensity, Stokes shift, and quantum yield.
- To demonstrate the potential of Zr-Gel in optoelectronic devices, specifically as luminescent solar concentrators (LSCs).
Main Methods:
- A straightforward solvothermal route was employed for the large-scale synthesis of the Zr-Gel.
- The luminescent properties of the Zr-Gel were systematically investigated and compared to its constituent ligand and related metal-organic frameworks (MOFs).
- Zr-Gel-based filled luminescent solar concentrators (LSCs) were fabricated and tested under simulated sunlight to assess their optical conversion efficiency.
Main Results:
- The synthesized Zr-Gel exhibited a broader excitation range and higher excitation intensity compared to the pure H4ETTC ligand.
- The Zr-Gel demonstrated a high quantum yield of 84.24% and a Stokes shift of approximately 0.50 eV.
- Zr-Gel-based LSCs achieved an optical conversion efficiency (ηopt) of 1.70%, outperforming control LSCs.
Conclusions:
- The developed Zr-Gel is a highly efficient AIE material with excellent luminescent properties, suitable for optoelectronic applications.
- The Zr-Gel's performance in LSCs highlights the significant potential of MOGs for renewable energy technologies.
- This study validates the superior performance of Zr-Gel and paves the way for further exploration of MOGs in advanced material applications.
