New Nano Scale Thin Transparent Film Material Has High Conductivity

                      A team of researchers, led by the University of Minnesota, has discovered a new nano scale thin film material with the highest-ever conductivity in its class.The discovery is reported in Nature Communications–‘Wide Band gap BaSnO3(Barium Stannate).The researchers used barium and tin because of their cost-effectiveness and abundance on the earth. Films with Room Temperature Conductivity Exceeding 104 Scm-1

These nano-scale thin films so created can help in the making of more powerful, faster, and smaller electronics. The cost of Indium is high, but Indium is currently used to create transparent conductors for various electronic devices including electronic displays, touch screens, smart phones, and solar cells. The new film is the result of a process of synthesis that combines elements such as barium, tin, and oxygen, which helps reduce the price of the final product.

The material has a large bandwidth, which means light can easily pass through it – something that also helps make it transparent to human eyes. Generally, materials with a high bandwidth are known for their low conductivity or low transparency, which is why the finding is particularly interesting. According to Bharat Jalan, a chemical engineer at the University of Minnesota, the technology could be used in a variety of electronics, touch screens, and even solar cells.

We were quite surprised at how well this unconventional approach worked the very first time we used the tin chemical precursor,” said University of Minnesota chemical engineering and materials science graduate student Abhinav Prakash, the first author of the paper. “It was a big risk, but it was quite a big breakthrough for us.”

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