December 2016 Current Affairs

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September 2016 Current Affairs
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August 2016 Current Affairs
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Chinese researchers introduce Graphene based all-weather solar cell

Chinese researchers introduce Graphene based all-weather solar cell
11 April 2016 Current Affairs: Chinese researchers have developed Graphene based all-weather solar cell that can generate electricity even during rains. The new approach for making an all-weather solar cell by using the ‘wonder material’ graphene was developed by the team of researchers from the Ocean University of China and Yunnan Normal University.The new all-weather solar cell is made up of highly efficient dye-sensitised solar cell coated with a very thin film of graphene. Graphene is a two-dimensional (2D) form of carbon in which the atoms are bonded into a honeycomb arrangement. Chinese researchers had used the phenomenon of graphene’s behavioural changes in aqueous solution. In aqueous solution graphene can bind positively charged ions with its electrons. Researchers used this to obtain power from the impact of raindrops on graphene electrodes. At the point of contact between the grapheme and raindrop, water becomes enriched in positive ions and the graphene becomes enriched in delocalised electrons. It results in a feature known as a pseudocapacitor i.e. double-layer made of electrons and positively charged ions. It also results in generating difference in potential associated, i.e. a phenomenon is sufficient to produce a voltage and current.


December 2016 Current affairs

November 2016 Current affairs
30 NOV
NEWS
29 NOV
NEWS
28 NOV
NEWS
26 NOV
NEWS
25 NOV
NEWS
24 NOV
NEWS




October 2016 Current affairs
31 OCT
NEWS
27 OCT
NEWS
26 OCT
NEWS
25 OCT
NEWS
24 OCT
NEWS
22 OCT
NEWS

September 2016 Current affairs
30 SEP
NEWS
29 SEP
NEWS
28 SEP
NEWS
27 SEP
NEWS
26 SEP
NEWS
24 SEP
NEWS

August 2016 Current affairs
31 AUG
NEWS
30 AUG
NEWS
29 AUG
NEWS
27 AUG
NEWS
26 AUG
NEWS
25 AUG
NEWS



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