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Enabling Visible and Near-Infrared Dual-Mode Emissions in Polycrystalline Gd2Hf2O7 Transparent Ceramics
Hengli Zhu1, Kaipeng Tian2, Jiaren Du1
1International Joint Research Center for Photo-responsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China.
Inorganic Chemistry
|June 22, 2026
Summary
New rare-earth-doped transparent ceramics offer dual-mode luminescence (visible, near-infrared, and upconversion) and excellent durability. These advanced photonics materials show promise for high-power optoelectronics in harsh environments.
Area of Science:
- Materials Science
- Photonics
- Ceramics Engineering
Background:
- Rare-earth-doped transparent ceramics are advanced luminescent materials with potential in photonics.
- Developing materials with stable, dual-mode luminescence is crucial for optoelectronic devices.
Purpose of the Study:
- To prepare and characterize Gd2Hf2O7:Yb3+,Er3+ transparent ceramics.
- To investigate their dual-mode luminescence properties and environmental resilience.
Main Methods:
- Vacuum sintering was used to control Yb3+ concentration in Gd2Hf2O7:Yb3+,Er3+ ceramics.
- Microstructure, luminescence (visible, NIR, upconversion), and hydrothermal aging were analyzed.
Main Results:
- Dense microstructures suppressed light scattering and nonradiative relaxation.
- Simultaneous visible, near-infrared, and upconversion luminescence was achieved.
- Ceramics showed superior environmental resilience and hydrophobic properties compared to commercial phosphors.
Conclusions:
- Gd2Hf2O7:Yb3+,Er3+ transparent ceramics exhibit promising dual-mode luminescence and exceptional durability.
- These materials can overcome stability limitations in harsh environments and high-power optoelectronics.
