Effect of Low-Pressure Plasma Treatment Parameters on Wrinkle Features

Area of Science:

• Materials Science
• Surface Engineering
• Plasma Physics

Background:

• Surface wrinkles on optical adhesives can improve mechanical and optical properties of optoelectronic devices.
• Controlling wrinkle characteristics is crucial for optimizing device performance.

Purpose of the Study:

• To investigate the impact of plasma gas type, power, flow rate, and treatment duration on wrinkle features.
• To understand how different plasma parameters influence wrinkle wavelength and height.

Main Methods:

• Optical adhesive samples were treated using low-pressure plasma with oxygen, argon, and nitrogen.
• Variations in plasma power, gas flow rate, and treatment time were systematically applied.

Main Results:

• Oxygen and argon plasma treatments resulted in the lowest and highest wrinkle wavelengths, respectively.
• Increasing nitrogen and oxygen plasma power enhanced wrinkle wavelength and height.
• Increasing argon plasma power increased wrinkle wavelength but decreased height, attributed to ion properties.

Conclusions:

• Plasma treatment offers a method for controlling surface wrinkle characteristics.
• Tailoring plasma gas composition and power allows for independent control of wrinkle wavelength or height.
• Understanding these correlations is key to optimizing optoelectronic device performance.