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Surface nanostructuring of alkali-aluminosilicate Gorilla display glass substrates using a maskless process
Rongtao Cao1, Ziyu Zhou2, Sajad Haghanifar3
1Department of Electrical and Computer Engineering, University of Pittsburgh, Pittsburgh, PA, 15261, United States of America.
Nanotechnology
|March 3, 2022
Summary
Researchers created moth-eye nanopillars on Gorilla glass using plasma etching. These nanostructures improve light transmission and offer potential for self-cleaning and anti-fogging applications.
Area of Science:
- Materials Science
- Nanotechnology
- Surface Engineering
Background:
- Alkali-aluminosilicate glass, commonly known as Gorilla glass, is widely used in displays.
- Developing advanced surface structures can enhance glass properties for novel applications.
Purpose of the Study:
- To report the formation of moth-eye nanopillar structures on Gorilla glass.
- To investigate the self-masking plasma etching method for creating these nanostructures.
- To explore the potential functionalities of the resulting nanostructured surfaces.
Main Methods:
- Utilized a self-masking plasma etching technique.
- Employed surface and cross-section chemical composition studies.
- Analyzed the role of carbon fluoride (CF)-induced polymers as self-masking agents.
Main Results:
- Successfully fabricated moth-eye nanopillar structures on alkali-aluminosilicate Gorilla glass.
- Identified CF-induced polymers as the crucial self-masking material during etching.
- Observed enhanced light transmission for wavelengths above 525 nm.
Conclusions:
- The self-masking plasma etching method is effective for creating moth-eye nanopillars on Gorilla glass.
- The nanostructures enhance optical transmission and enable fluid-induced switchable haze.
- Potential applications include self-cleaning, anti-fogging, and stain-resistant surfaces.
