Molecular Reconfiguration of Disordered Tellurium Oxide Transistors with Biomimetic Spectral Selectivity

Area of Science:

• Materials Science
• Semiconductor Devices
• Neuromorphic Computing

Background:

• Reconfigurable devices are crucial for next-generation semiconductor platforms, offering enhanced data processing and reduced power consumption.
• Existing 2D materials for such devices often require complex operating rules and additional components.
• There is a need for simpler, highly functional reconfigurable materials.

Purpose of the Study:

• To introduce a novel p-type disordered tellurium oxide material for dual-mode reconfigurable devices.
• To demonstrate its capability as both a logic transistor and a neuromorphic device.
• To explore its application in advanced vision systems.

Main Methods:

• Fabrication of a p-type disordered tellurium oxide film.
• Utilizing oxygen molecule adsorption and laser-induced desorption to modulate carrier concentration.
• Characterization of transistor performance and neuromorphic functionalities.

Main Results:

• The device achieved high-performance p-type characteristics with a field-effect hole mobility of 10.02 cm² V^-1 s^-1 and an I_on/I_off ratio > 10⁶.
• Demonstrated biomimetic bee vision, responding specifically to blue-to-ultraviolet light.
• Achieved in-sensor denoising and invisible image recognition in static and dynamic scenarios.

Conclusions:

• Disordered tellurium oxide offers a promising pathway for dual-mode reconfigurable devices.
• The material enables high-performance logic and advanced neuromorphic functionalities.
• This technology has potential applications in efficient, intelligent vision systems.