Research

2D Materials Manufacturing

Two-dimensional (2D) transition metal dichalcogenide (TMDC) materials like MoS2 and WS2 bear a tantalizing potential to revolutionize the semiconductor industry. However, one major challenge for exploring 2D TMDC materials to develop novel devices lies in the lack of capabilities to manufacture high-quality these materials. We are interested in developing capabilities to manufacture wafer-scale, high-quality 2D TMDC materials in cost-effective and scalable ways.

Optical images of 2D TMDC films with size up to 2-inch wafer scale.


2D Materials Photonics

2D TMDC materials provide a remarkable excitonic system with exciton binding energy more than one order of magnitude higher than conventional semiconductors. Therefore, they may enable the development of novel atomic-scale photonic devices like lasers or LEDs that would feature extreme flexibility, high efficiency, and low cost. We are interested in understanding the excitonic physics and  light-matter interaction properties  of 2D TMDC materials.

Light-matter interaction in 2D TMDC materials


2D Materials Flexible Circuitry

2D TMDC materials is the ideal materials to develop flexible high-performance integrated circuits due to its genetic combination of high flexibility and high functionalities. We are interested in developing flexible memory and logic circuits with wafer-scale 2D materials films.


2D Materials Catalysis

Transition metal dichalcogenide materials have been widely considered to be  promising low-cost catalysts for water splitting and fuel cells. The atomically thin dimension of these materials may provides  opportunities to rationally optimize the catalytic performance by engineering the catalyst at the truly atomic level. We are interested in gaining better understanding for the fundamentals of catalysis by taking the advantage of 2D TMDC materials’ atomically controlled physical features and rationally design novel catalysts based on the understanding.

Excellent Catalytic Performance of Monolayer MoS2 Films with Little Edge Sites


2D Materials Interface Science

2D  materials may provide new opportunities for the study and control of interfacial processes, such as friction, wetting, and interfacial thermal conductance. In essence, 2D materials provide an interface with physical features controlled in atomic-scale precision.   We are interested in pursuing better understanding for interfacial science by leveraging on the unique physical features of 2D materials. These may include interfacial thermal conductance, wetting, and surface friction.