25-08-2017, 09:32 PM
GRAPHENE
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Introduction:
Carrier mobility in graphene
(a) Conductance of a
suspended graphene
sample before (blue) and
after (after) annealing as a
function of carrier density.
(b) Mobility displayed as a
function of n exceeds.
Further developments for graphene devices
Opening a sizeable and well-defined bandgap
Making large-area graphene transistors
Fabricating graphene nanoribbons with well-defined widths and clean edges
Conclusion
• graphene possesses a combination of special properties which
happen to answer several limitations of currently known materials
and systems
• By method of CVD on nickel/Si layer, electronically and mechanically
advantageous graphene layer was created, and applicational possibility
was confirmed
• Although graphene has a high electron mobility and another many
pros, transistors with large-area-graphene cannot be switched off,
making them unsuitable for logic applications.