Manipulating Optical Absorption of Indium Selenide Using Plasmonic Nanoparticles

Area of Science:

• Materials Science
• Optoelectronics
• Nanotechnology

Background:

• Indium selenide materials are crucial for optoelectronic devices.
• Tuning optical absorption is key to improving device performance.
• Plasmonic resonance offers a pathway for light manipulation.

Purpose of the Study:

• To investigate the use of periodic gold nanoparticles (Au NPs) to tune optical absorption in indium selenide.
• To analyze the impact of nanostructure parameters on plasmonic resonance and absorption.
• To achieve significant absorption enhancement in the visible spectrum.

Main Methods:

• Electromagnetic simulations were employed to model optical absorption.
• The influence of gold nanoparticle size and period was systematically analyzed.
• The effect of silicon oxide thickness and insulator spacer on plasmonic resonance was studied.

Main Results:

• Optical absorption of indium selenide can be effectively manipulated by tuning plasmonic resonance.
• Nanoparticle size, period, silicon oxide thickness, and insulator spacer critically affect plasmonic resonance.
• A high absorption enhancement was achieved across the visible spectrum via nanostructure optimization.

Conclusions:

• Periodic Au NPs are a viable strategy for enhancing optical absorption in indium selenide devices.
• Systematic optimization of nanostructures allows for precise control over light absorption.
• This approach holds promise for advancing the performance of indium selenide-based optoelectronics.