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MgF2:Mn2+: novel material with mechanically-induced luminescence
Jingjing Ning1, Yuantian Zheng2, Yinti Ren1
1Hebei Key Laboratory of Optic-electronic Information and Materials, College of Physics Science and Technology, Hebei University, Baoding 071002, China.
Science Bulletin
|December 22, 2022
Summary
This study introduces a new mechanoluminescent (ML) material, MgF2:Mn2+, that emits light under mechanical force without UV pre-charging. This novel material enables transparent ML films for advanced applications.
Area of Science:
- Materials Science
- Optoelectronics
- Solid-State Physics
Background:
- Mechanoluminescent (ML) materials convert mechanical energy directly into light.
- Current ML materials often require UV pre-irradiation and are limited to sulfide/oxide bases.
- Practical applications are hindered by these limitations.
Purpose of the Study:
- To develop a novel ML material emitting light without UV pre-charging.
- To investigate the luminescence properties of MgF2:Mn2+.
- To demonstrate piezophotonic applications and create transparent ML films.
Main Methods:
- Synthesis and characterization of MgF2:Mn2+.
- Investigation of luminescence under mechanical stimulation.
- Fabrication of transparent ML films using polydimethylsiloxane (PDMS) matrices.
Main Results:
- MgF2:Mn2+ exhibits bright red ML emission under dynamic force without UV pre-charging.
- Systematic study confirmed its luminescence properties.
- A highly transparent ML film was successfully fabricated by incorporating MgF2:Mn2+ into PDMS.
Conclusions:
- MgF2:Mn2+ is a promising novel ML material overcoming limitations of existing ones.
- The transparent ML film opens avenues for flexible optoelectronics, artificial skin, and sports analytics.
- This work advances the field of self-powered, light-emitting materials.
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