WELCOME. ELECTRONIC CIRCITS USING GRAPHENE CONTENTS ABSTRACT INTRODUCTION TO GRAPHENE HISTORY OF GRAPHENE IN ELCTRONIC CIRCUITS FABRICATION OF GRAPHENE.

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Presentation transcript:

WELCOME

ELECTRONIC CIRCITS USING GRAPHENE

CONTENTS ABSTRACT INTRODUCTION TO GRAPHENE HISTORY OF GRAPHENE IN ELCTRONIC CIRCUITS FABRICATION OF GRAPHENE USING CARBON NANO TUBES FABRICATION OF GRAPHENE USING BORON NITRATE EXPERIMENTAL GRAPHS ADVANTAGES APPLICATIONS CONCLUSION REFERENCES

ABSTRACT ELECTRONICS IS “POWERFULL”. GRAPHENE USED IN MODERN TECHNOLOGY. FABRICATION METHODS OF GRAPHENE APPLIATIONS IN MODERN TECHNOLOGY.

INTRODUCTION TO GRAPHENE THIN,MONOLAYER OF GRAPHITE.. HONEY COMB LIKE STRUCTURE. GRAPHITE+ENE(SINGLE LAYER CARBON). Sp2 BONDING. WRAPED INTO 1D,2D,3D.

2-D GRAPHENE 3-D GRAPHENE

HISTORY OF GRAPHENE IN ELCTRONIC CIRCUITS GRAPHENE EXISTS SINCE X-RAY CRYSTALLOGRAPHY. THERMODYNAMICALLY UNSTABLE. LOW ENERGY STATES. ISOLATED USING ADHESIVE TAPES. WEAK VANDER WAALS FORCES.

ISOLATED GRAPHENE LAYER

FABRICATION OF GRAPHENE USING CARBON NANOTUBES NANO RIBBONS MADE OF GRAPHENE MEMORY CELL (MEMORY CHIP) SIZE IS LESS INCREASE CAPACITY OBEYS MOORES LAW SIZE LESS THAN 10nm

AT 10nm SCALE

FABRICATON PROCESS DEPOSITE V2O5 NANOFIBRE TOP OF NANO GRAPHENE. ITCHING WITH ARGON ION SMOOTH EDGES. V2O5 REMOVED. NANO RIBBONS PLACED ALONG THE SINGLE WALLED CARBON NANO TUBE (SWNT)

GRAPHENE NANORIBBONS ENCAPSULATED IN “SINGLE-WALLED CARBON NANOTUBES”

ADVANTAGES OF USING NANO RIBBONS PROPERTIES CHANGES BY VARYING WIDTH, ANGLE OF NANO RIBBONS. IT FLIPS BETWEEN BIT 1(ON) AND BIT 0(OFF) STATES HIGH FREQUENCY ROBUST AND VERSATILE STATIC AND DYNAMIC MEMORIES MANUFACTURED.

FABRICATION USING BORON NITRATE 2 LAYER GRAPHENE SANDWITCHED BETWEEN 2 BORON NITRATE LAYERS FORM 4 LAYERED STRUCTURE GRAPHENE AS INSULATOR

BN-GRAPHENE-BN TOPPED WITH OTHER GRAPHENE LAYER. GRAPHENE’S ELECTRON HOLE PUDDEL SCREENED WITH 2nd LAYER GRAPHENE.

ADVANTAGES OF USING BORON NITRATE BORON ATOMS SMALL IN SIZE, AND NITROGEN ATOMS LARGER IN SIZE THAN CARBON ATOMS. PROPER WIDEBAND GAPE INSULATOR RESISTENCEQUANTUM>(h/(e*e))

EXPERIMENTAL GRAPHS

GENERAL ADVANTAGES FLEXIBLE(THERMALLY UNSTABLE) HARD(200 TIMES STRONGER) HIGH CAPACITY (LARGE STORAGE) HIGH SPEED (LESS TRANSITION TIME) HIGH THERMAL RESISTANCE

APPLICATIONS ELCTRONIC MARKET( COMPUTERS, PHONES). OLED (ORGANIC LIGHT EMITTING DIODES). NIGHT VISION SYSTEM. CO-AXIAL CABLES. MEMORY DEVICES. ENERGY STORAGE BATTERIES.

CONCLUSION “ELCTRONICS” BECOMES POWERFULL IF GRAPHENE USED IN MODERN TECHNOLOGY FOR ELECTRONIC DEVICES.

REFERENCES “Nature Physics”, AndreGeim & Novoselov,2011. “Graphene spurs next generation chips”, Hindu Newspaper, October13,2011.

THANKING YOU

QUARIES?