Vienna University of Technology in Austria has been the first developed the diode made by tungsten diselenide (WSe2). According to the experiment, this material can be used for ultra-thin flexible solar cells. It was expected in the market that it will take the place of graphene to become the next new-material concept, scientific experts and related enterprises indicates that the application of prospective studies are currently unclear.

 

Graphene is considered as one of the most promising electronic material, but it’s not suitable for build solar cells, which is why the Vienna University of Technology research team began to look for other similar materials like graphene, they want to find the one material that can be arranged by ultra-thin layers and has better electronic properties. Therefore, the researchers found tungsten diselenide, and its main structure is that the upper and lower layer of selenium connected to an intermediate layer of tungsten atoms, as graphene can absorb light, about 95% of the light can pass through it, but one-tenth of the remaining 5% of the light will be absorbed by the material, and converted into electricity.