2D Photodetector

 

Scientists have developed a breakthrough method to mass-produce high-performance two-dimensional (2D) semiconductor materials. This innovation could lead to faster, more tunable photodetectors and advanced light-sensing technologies for future electronic devices.

Two-dimensional semiconductors are materials just one atom thick. They are essential for developing lightweight, energy-efficient electronics. While many 2D n-type semiconductors exist, high-quality p-type versions—critical for balanced circuit performance—have been much harder to create.

The researchers identified tellurium as a promising p-type material. It demonstrated excellent conductivity, with record-high carrier mobility, and greater stability in air than current alternatives like black phosphorus. These properties make it highly suitable for long-term, high-speed applications.

Devices built with 2D tellurium are not only fast and efficient but also tunable, allowing them to be adapted for various uses, including high-frequency circuits, energy harvesting, and photodetection systems.

This marks a major step toward thinner, smarter electronics.