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Smart Multimodal Optical Film from Visible-Light-Excited Phosphorescent Materials for Daytime Light Intensity
Qi Feng1, Yiyao Liu1, Fei Pang2
1State Key Laboratory of Advanced Fiber Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China.
ACS Applied Materials & Interfaces
|March 9, 2026
Summary
Researchers developed a smart multimodal optical film (SMOF) using phosphorescence nanoparticles in a silicone matrix. This film
Area of Science:
- Materials Science
- Optics
- Nanotechnology
Background:
- Smart optical films offer multi-modal optical properties for advanced devices.
- Fabricating such films is challenging due to complex structures and synthesis.
Purpose of the Study:
- To develop a novel smart multimodal optical film (SMOF) with tunable optical properties.
- To overcome limitations of UV excitation by utilizing visible-light excitation and mechanical deformation.
Main Methods:
- Fabricated SMOF by embedding visible-light-excited phosphorescence nanoparticles (CD-SiO2 NPs) within a polydimethylsiloxane (PDMS) matrix.
- Investigated optomechanical switching behavior through mechanical deformation and visible-light excitation.
Main Results:
- SMOF exhibits tunable UV-vis transmittance, fluorescence, and phosphorescence under visible light.
- Mechanical deformation induces cracks and voids, enhancing light scattering and photoluminescence intensity.
- Achieved broadband transmittance regulation and amplified photoluminescence intensity via optomechanical coupling.
Conclusions:
- The developed SMOF is a multifunctional platform with stimuli-responsive properties.
- Potential applications include privacy protection, UV shielding, and persistent-luminescence-based safety systems.
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