Overview,Graphene,Latest,Devel technology An Overview on Graphenes Latest Developments in Electronic
Active shredder safety technology for the small office. Shreds 15sheets per pass into 5/32" x 1-1/2" cross-cut particles (Security Level3). Patented SafeSense® Technology stops shredding when hands touch thepaper opening. Designated shredde The electronic cigarette is not new. People who buy electronic cigarette knows that this product has been in the market for years now. Despite some sectors apparently trying to shoot the product down from the shelves, the popularity of elect
Graphene is an allotrope of carbon, whose structure is one-atom-thickplanar sheets of sp2-bonded carbon atoms that are densely packed in a honeycombcrystal lattice, therefore it is considered as the future silicon. In 1970s, Scientists began making flakes of graphene, the atomic-scalelattice of carbon atoms. As an ultra-thin material, Graphene has a host of promising applications,from high-bandwidth communication to a new generation of low-cost smartphoneand television displays. One promising application for graphene is in making new parts of theradio-frequency spectrum available for consumer electronics applications, saidRichard Doherty, president of Envisioneering Inc., an industry consulting firm. It allows you to tame a spectrum that before was the wild, wild West, hesaid. For example, it might make possible a new class of Wi-Fi-stylecommunications gear for wireless applications, or allow set-top cable boxes tobe redesigned to send and receive ever-larger amounts of high-resolution videoand data. According to Newest study on Graphene material , IBM, the computertechnology giant said on last Thursday that they have designed high-speedcircuits from such material. Moreover, a report from the journal Science tellsus that IBMs G circuit is known as a broadband frequency mixer that was builton a waferof silicon. Such circuits are widely used in all kinds of communicationsproducts by shifting signals from one one frequency to another.Mr. Doherty added that display manufacturers were especially interested ingraphene because the current wave of displays based on OLEDs, or organiclight-emitting diodes, have limited lifespans. In the past I.B.M. has created stand-alone graphene transistors, but notcomplete electronic circuits. However, this time the I.B.M. researchersdescribe a demonstration in which they deposited several layers of graphene ona silicon wafer, then created circuits based on graphene transistors andcomponents known as inductors. They demonstrated frequency mixing up to speedsof 10 gigahertz. Phaedon Avouris, IBMs leader chemical physicist said while I.B.M. was nowable to build circuits from the material, it was still learning reliable waysto make large quantities of graphene film. It is now possible to heat a siliconcarbide wafer to about 1,300 degrees Celsius (nearly 2,400 Fahrenheit), causingthe silicon atoms on the surface to evaporate and the remaining carbon atoms torearrange themselves into the hexagonal graphene shape. Meantime, it is still a problem for IBM to get the graphene due to thehigh cost of the silicon carbide wafers according to Dr. Avouriss comment. Articlesource: http://www.hqew.net/article/showdetails-article-206.html
Overview,Graphene,Latest,Devel