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Manganese-Doped Nanocrystals for Smartphone-Based X-ray Imaging and Optical Storage
Weiwei Peng1, Denghao Li1, Lei Lei1
1Key Laboratory of Rare Earth Optoelectronic Materials and Devices of Zhejiang Province, Institute of Optoelectronic Materials and Devices, China Jiliang University, Hangzhou 310018, People's Republic of China.
Inorganic Chemistry
|September 19, 2025
Summary
We developed novel manganese and gadolinium codoped sodium yttrium fluoride (NaYF4) nanocrystals. These engineered nanoparticles offer improved luminescence for smartphone X-ray imaging and data storage applications.
Area of Science:
- Materials Science
- Nanotechnology
- Luminescence
Background:
- Lanthanide-doped materials have narrow emission bands, hindering spectral matching with smartphone cameras.
- Existing materials limit efficiency in visible light-based imaging systems.
Purpose of the Study:
- To enhance luminescence performance and practical applicability of nanomaterials for smartphone integration.
- To develop a material with tunable emission wavelengths for CMOS sensor compatibility.
Main Methods:
- Synthesized Gd3+, Mn2+ codoped NaYF4 nanocrystals using a hydrothermal method.
- Regulated crystal phase and emission wavelength (526-570 nm) via doping.
- Embedded nanocrystals in a PDMS film for flexible X-ray imaging.
Main Results:
- Achieved precise spectral matching with human eye sensitivity and CMOS sensors.
- Gd3+ doping enhanced Mn2+ luminescence intensity through energy transfer.
- Demonstrated smartphone-based X-ray imaging and thermally stimulated data storage.
Conclusions:
- NaYF4:Gd3+, Mn2+ nanoparticles offer cost-effective luminescent solutions.
- This work advances lanthanide-transition metal codoped fluoride research.
- Developed materials enable new applications in imaging and information storage.
