Enhancing Light-Matter Interactions In Mos2 By Copper Intercalation

Abstract

Researchers at the University of California, Davis have developed layered 2D MoS2 nanostructures that have their light-interactive properties improved by intercalation with transition and post-transition metal atoms, specifically Copper and Tin.

Full Description

The technology involves photodetectors made of 2-dimensional vertically-aligned MoS2 layers. The van der Waals gap in at least two layers of MoS2 is intercalated with metal atoms such as Copper and Tin to enhance light-matter interactions. These intercalated atoms introduce electronic states near the MoS2’s conduction band, boosting the photodetector's efficiency, especially in the near-infrared spectrum.

Applications

• Optical sensors such as photodetectors 
• Night-vision image intensifiers 
• Technologies operating in low-light conditions or high vegetation terrain.

Features/Benefits

• Enhanced light-matter interactions in near-infrared spectrum 
• Improved photodetector efficiency 
• Increased photoresponsivity and absorption capabilities in the infrared range. 
• Addresses weak absorption in IR spectral region of 2D MoS2 devices 
• Solves inefficient light-interactive properties of 2D MoS2 structures.

Patent Status

Additional Patents Pending