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Inorganic Photonic Microspheres with Localized Concentric Ordering for Deep Pattern Encoding and Triple Sensory
Wenbin Niu1, Xiao Wang1, Yu Zheng1
1State Key Laboratory of Fine Chemicals, Dalian University of Technology, West Campus, 2 Linggong Rd., Dalian, 116024, China.
Small (Weinheim an Der Bergstrasse, Germany)
|October 27, 2020
Summary
New robust inorganic photonic microspheres exhibit angle-independent structural colors and multi-functional optoelectronic properties. These advanced materials enable deep pattern encoding for anti-counterfeiting and novel optoelectronic microsensors for real-time monitoring.
Area of Science:
- Materials Science
- Nanotechnology
- Optoelectronics
Background:
- Photonic microspheres are versatile building units for optical applications.
- Existing microspheres often lack robustness and multi-functionality.
Purpose of the Study:
- To develop a new class of robust inorganic photonic microspheres.
- To explore their use in deep pattern encoding and multi-sensory optoelectronic devices.
Main Methods:
- Fabrication of inorganic photonic microspheres with localized concentric ordering architecture.
- Utilizing chemical interactions to form lamellar inorganic layers.
- Demonstration of pattern encoding and optoelectronic sensing capabilities.
Main Results:
- Microspheres exhibit orientation- and angle-independent structural colors.
- Achieved superior mechanical robustness, solvent resistance, and thermal stability.
- Successfully constructed encoded photonic patterns for anti-counterfeiting and demonstrated a single microsphere optoelectronic sensor for triple environmental stimuli.
Conclusions:
- The developed photonic microspheres are robust and multifunctional.
- They offer a new platform for complex pattern encoding and multi-parametric sensing.
