Diselenium Tungsten for Manufacturing Ultrathin Flexible Solar Cell

The researchers in Austria Vienna University of Technology first developed a diode made of diselenium tungsten (WSe₂) which can be used in the ultrathin flexible solar cell, according to the experiment.

Mostly, the standard solar cell which is rather bulky and inflexible made of Silicon; although organic materials can apply in photoelectricity, it has quite fast degree of degradation. While graphene is considered to be one of the prospects for the development of electronic materials, it is not suitable in making solar cells. That is why the team of Vienna University of technology began looking for other similar materials which is arranged in ultrathin and with better electronic properties.



WSe₂ is similar to grapheme, and its main structure composed of one upper and lower layers of selenium atoms connected to the middle layer of tungsten atoms. About 95% of the light can pass through this thin layer, and 1/10 of the remaining 5% light will be absorbed by the material, and converted into electricity with quite high internal efficiency. If multiple thin layers are stacked on each other, a large part of the incident light can used effectively and may bring beneficial side effect at the same time.

Imagine that, the solar cell stack on your glass curtain, part of the light pass through the building and bringing available power, don’t you think your future life would be brighter?

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