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Tuesday 17 December 2013

A new promise for Electronics

Comparison of graphene oxide before (left) and after (right)
A team of researchers from MIT and University of Berkeley have found a new simple inexpensive method for a variety of applications. 

Do you wanna know the Hero of the Story? :) Yes, Ofcourse. Its Graphene, a two-dimensional array of carbon atoms. The new method was published in Journal Nature Chemistry  which was co-authored by MIT students Priyank Kumar, Neelkanth Bardhan and MIT professors Jeffrey Grossman and Angela Belcher and other two authors from Berkley. 

In fact, pure graphene lacks some key properties needed for electronic devices, solar power and sensors. But when it is modified through the addition of oxygen, it can provide all the essential properties required. The group did a new approach in which they exposed the material to relatively low temperatures. But the key point is, they havent used any chemical treatments. The low-temperature annealing process itself modified the distribution of the oxygen atoms, causing them to form clusters and leaving the areas of pure graphene between them without introducing any sort of disorder to its structure. The material earns a lot of capabilities such as ability to absorb visible light, becomes much electrical sensitive and further more which can be used in wide variety of applications such as solar cells etc. 

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