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Multifunctional Optoelectronic Devices and Physics

Optoelectronics is one ofthe cornerstones of information technology in the post-Moore era. According to research data from LightCounting, global mobile data traffic has been growing at a rate of 60% annually in the past five years, while the bandwidth of optoelectronic devices has only been increasing by 10% annually, creating a significant contradiction in matching the big data demands. Traditional semiconductor optoelectronic materials are limited in aspects such as size scaling and heterogeneous integration due to factors like the short-channel effect and lattice constantmatching, which call for the new device architecture to develop high-performance, low-power optoelectronic devices.

In recent years, frontier optoelectronic materials, represented by 2D semiconductors, have achieved notable progress. They possess excellent optoelectronic properties such as atomic-level thickness, high carrier mobility, and strong light-matter interaction. The interlayer interaction in these materials is governed by van der Waals forces, allowing for seamless heterogeneous integration with traditional semiconductors through low-temperature back-end-of-line technology. These characteristics provide opportunities for developing new optoelectronic devices that meet the requirements of the post-Moore era and exploring new device physics.

We are now focusing on these research topics:

1. 2D TFT technology and display system.

2. Multifunctional optoelectronic system that fuses display, sensor, and computing functions.

3. Polaritonic device physics and optoelectronic integrated circuit (OEIC).