Researchers at Harvard University in the US have put forward the first thorough theory of how electric fields affect the dielectric response of molybdenum disulphide – a new, technologically important 2D layered material. Their calculations have revealed that the dielectric constant of MoS2 is not fixed but depends very much on the gate voltage applied to the system. The findings will be important for when it comes to designing MoS2-based devices in the future since many of the material’s electronic and optical properties depend on its dielectric constant…..
http://nanotechweb.org/cws/article/tech/57726
