The two-dimensional (2D) materials have gained tremendous attention worldwide especially after the exfoliation of graphene in 2004 by Geim and Noveslov in the United Kingdom (UK). Until now, there are over 174000 papers have been published on graphene Thus, numerous methods beyond the scotch tape technique have been employed to synthesis 2D materials.

Among these materials, there are metal oxides and transition metal dichalcogenides (TMDCs) materials. Indeed, they possess remarkable properties such as the high surface-to-volume ratio, high-carrier mobility, and high Young's modulus. Owing to these fascinating features of these 2D materials, they have been used in several applications citing electrochemical energy storage, sensors, electronic and piezoelectric devices, etc... 

In our group, we work with transition metal dichalcogenides (TMDCs) materials, especially molybdenum disulphide and tungsten disulfide. Based on these materials, we have created efficient gadgets useful for optoelectronic, electrochemical, and chemical sensing fields.

The elaboration of our TMDCs materials is achieved through two techniques that belong to different approaches.  The first one is the ultrasonic technique that belongs to the top-down approach while the second is a bottom-up technique known as chemical vapor deposition (CVD).