1. TOPIC: GRAPHENE
Date: August 15, 2016.
Hashibur Rahman
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2. Introduction
 What is Graphene
 Discovery
 Graphene’sstructure
 features
 Applications
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3. What is Graphene
 Graphene is an allotrope of carbon
 It forms of a two-dimensional, atomic-scale, honey-
comb lattice.
 One atom forms each vertex.
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4. Atomic structure
 2-dimensional,crystalline
 allotropeof carbon
 Allotrope:property of
chemical elements to exist
in two or more forms
 Singlelayer of graphite
 Honeycomb (hexagonal)
lattice
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5. Graphene’sThickness and transparency
 It is just one-atom thick
 Absorbs 2.3% of light
 It can be seen with the naked eye.
 It can potentiallybe used to create semi-
transparent electronics.
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6. Discovery
• Graphenetheory first explored
by P.R. Wallce (1947)
• The material was later
rediscovered, isolated and
characterized in 2004 by
Andre Geim and Konstantin
Novoselov.
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7. Some amazing features
 It is ultra-light yet immensely tough.
 It is 200 times stronger than steel, but it is incredibly
flexible.
 It is the world’s most superb conductor and can act as a
perfectbarrier - not even helium can pass through it.
 It is the world's first 2D and thinnest material and is
one million times smaller than the diameter of a single
human hair.
 It is electricallyand thermally conductive but also
transparent.
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8. Applications
Batterycharging
 Quick battery charging solution
 20 sec to recharge
 Capableof retaining charges longer
 FlexibleSmall battery size
 Easy to recycle
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9. Applications
Electronics
 Small Transistors
 Graphene Semiconductors
are more faster than silicon chips
 Wearabletechnology
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10. Applications
Compositesand coatings
 Rust-free future
 Weatherproofingand packaging
 Aeronautical
 Graphenefor sport
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11. Applications
Biomedical
 Medicalscience
 Drug delivery
 Targeted drug delivery; improved brain penetration;
DIY health-testing kits and 'smart' implants.
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12. Conclusion
 Graphene was first isolated from graphite in at The
University of Manchester in 2004. Its range of superlative
properties, including fantastic strength, conductivity,
flexibility and transparency, has paved the way for
applications ranging from water filtration to bendable
smart phones; from rust-proof coatings to anti-cancer drug
delivery systems.
 Combininggraphene with other materials, which
individually have excellent characteristics complimentary
to the extraordinary properties of graphene, has resulted in
exciting scientific developments and could produce
applications as yet beyond our imagination.
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13.  http://www.graphene.manchester.ac.uk/latest/?archiv
e=twelvemonths&id=16897
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14. Thank You
.
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