Aug 28, 2012 19:14 Tetsuo Nozawa, Nikkei Electronics.
Sony Corp developed a machine that produces graphene, which is two-dimensionally connected carbon atoms, by using a roll-to-roll method and made a graphene sheet with a width of 23cm and a length of 100m.
It is the largest area of graphene sheet in the world. Sony will deliver a lecture on the technologies used to realize the sheet and the results of the production at the 73rd JSAP Autumn Meeting, 2012, which the Japan Society of Applied Physics (JSAP) will organize at Ehime University from Sept 11 to 14, 2012 (lecture number: 14a-C1-11).
Thus far, South Korea-based manufacturers and research institutes have been leading the development of large-area graphene. But, due to the use of a high-temperature (1,000°C) manufacturing process for a chemical vapor deposition (CVD) method, they have not yet succeeded in using a roll-to-roll method to make a large-area graphene.
