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Updated: Jan 28, 2026
06:15
Author Spotlight: Advancements and Applications in Nanoparticle Synthesis Through Laser Ablation in Liquids
Published on: June 16, 2023
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High-Brightness, Wide-Gamut, and High-Resolution Structural Colors via Ultrafast Laser Oxidation of Ti/TiO2 Films
Ruiyi Chen1,2, Wei Lyu3, Xiaoyu Sun1,4
1Zhejiang Key Laboratory of 3D Micro/Nano Fabrication and Characterization, Department of Electronic and Information Engineering, School of Engineering, Westlake University, Hangzhou, Zhejiang, China.
Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
|January 27, 2026
Summary
Researchers developed a novel method for creating vibrant structural colors using ultrafast laser processing of titanium-titanium dioxide-titanium thin films. This technique offers high resolution and durability for diverse applications.
Area of Science:
- Materials Science
- Nanotechnology
- Optics
Background:
- Scalable fabrication of high-brightness, wide-gamut, and high-resolution structural colors is challenging.
- Current methods often rely on complex nanofabrication or coating techniques.
Purpose of the Study:
- To demonstrate a facile and flexible approach for generating vivid structural colors.
- To explore ultrafast laser processing of Ti-TiO2-Ti sandwich-structured thin films for color generation.
Main Methods:
- Utilized ultrafast laser processing on Ti-TiO2-Ti multilayer thin films.
- Controlled oxidation of titanium dioxide (TiO2) layers by tuning laser fluence.
- Investigated optical properties including absorption and reflection enhancement peaks.
Main Results:
- Achieved vibrant structural colors with high reflectivity (up to 60%) and a wide color gamut (>80% sRGB).
- Demonstrated precise color control with a color difference (ΔE) less than 3.
- Attained ultra-high resolution up to 30,000 DPI.
- Exhibited excellent thermal stability and corrosion resistance.
Conclusions:
- Ultrafast laser processing provides a scalable and flexible method for producing high-quality structural colors.
- The developed technique holds significant potential for applications in art, anti-counterfeiting, signage, and flexible photonic devices.
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