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GRAPHENETHE MATERIAL OF THE FUTURE,
TODAY NEVADA LITTERELL
WILLIAM RAY
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WHAT IS GRAPHENE?
• GRAPHENE: GRAPHENE IS A FULLERENE CONSISTING OF BONDED CARBON ATOMS IN SHEET FORM, 1 ATOM THICK.
• IT CAN COST $60 PER SQUARE IN
• YOU MIGHT RECOGNIZE IT AS THIS
• A SINGLE LAYER OF THIS
IS USED FOR WHEN STACKED
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HISTORY
http://bucky-central.me.utexas.edu/RuoffsPDFs/235.pdf
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ADVANTAGES MECHANICAL PROPERTIES
• YOUNG’S MODULUS: 1-TPA• A TERAPASCAL IS ROUGHLY EQUIVALENT TO 2,270,156 ELEPHANTS
SIMULTANEOUSLY BALANCING ON A SINGLE SQUARE FOOT OF SURFACE AREA.
• BY ADDING JUST 1% CONCENTRATION OF CARBON NANOTUBES TO CARBON FIBERS, THE MATERIAL STRENGTH INCREASED BY 64%
• ELASTIC STIFFNESS 2ND ORDER: 340 N/M
3RD ORDER: -690 N/M
• BREAKING STRENGTH: 42 N/M
• THERMAL CONDUCTIVITY: 5000 W/MK
• MINIMUM METALLIC CONDUCTIVITY
• BIPOLAR SUPERCONDUCTIVITY
• NATURAL RADAR EVASIVITY
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QUANTUM HALL EFFECT
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RAMAN SPECTROSCOPY
WHAT IS RAMAN SPECTROSCOPY YOU MIGHT ASK?
• THE RAMAN SPECTROSCOPY INVOLVES EMITTING LIGHT AT A MOLECULE. WHEN THE LIGHT REACTS WITH THE MOLECULE, THE LIGHT FREQUENCY WILL SHIFT AWAY FROM THE WAVELENGTH, WHICH WILL GIVE THE DIFFERENCE IN ENERGY OF THE MOLECULE.
• USING RAMAN SPECTROSCOPY, WE ARE ABLE TO MEASURE THE TEMPERATURE, CHARACTERIZE MATERIALS, AND CHECK OUT THE CRYSTALLOGRAPHIC ORIENTATION OF A SAMPLE.
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• GRAPHENE ANODE IN A LITHIUM-ION BATTERY
• ULTRA-CAPACITORS WITH BETTER PERFORMANCE THAN BATTERIES
• COMPONENTS WITH HIGHER STRENGTH-TO-WEIGHT RATIO
• LOW-COST WATER DESALINATION
• MORE EFFICIENT AND LOWER COST SOLAR CELLS
• ELECTRODES W/HIGHER SURFACE AREA AND LOWER RESISTANCE
• SENSORS TO DIAGNOSE DISEASES
• CHEMICAL SENSORS EFFECTIVE AT DETECTING EXPLOSIVES
• MEMBRANES MORE EFFECTIVE AT SEPARATION OF GASES (NANOSCALE PORES)
• TRANSISTORS THAT OPERATE AT HIGH FREQUENCY
• STORING HYDROGEN FOR FUEL CELL-POWERED CARS
• OPTICAL LENSES
MODERN USES FOR GRAPHENE
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http://batman.wikia.com/wiki/File:Batmanbegins.jpg
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http://www.ipo.gov.uk/informatics-graphene-2013.pdf
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http://www.ipo.gov.uk/informatics-graphene-2013.pdf
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HERE WE SEE DR. SHELTON COOPER TRYING TO ISOLATE THE TERMS OF AN EQUATION PERTAINING TO HIS RESEARCH ON GRAPHENE APPLICATIONS
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DISADVANTAGES
• PRODUCTION TIME, LABOR, AND COSTS
• SUFFERS FROM ZERO-ENERGY BAND GAP, EVEN AT CHARGE NEUTRALITY POINT• THIS RESTRICTS IT FROM BEING USED IN LOGIC APPLICATIONS
• ENVIRONMENTAL IMPACT• GRAPHENE DISSOLVES IN GROUND WATER, BUT SPREADS IN SURFACE
WATER.
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REFERENCES
TOO MANY TO LIST.
JUST KIDDING. HERE THEY ARE…