Electrodeposition

Pulsed LASER deposition

Carbon Nano tubes

IntroductionCNT is a tubular form of carbon with diameter as

small as 1nm.Length: few nm to microns.

CNT is configurationally equivalent to a two dimensional graphene

sheet rolled into a tube.

Structure

Armchair (n,m) = (5,5) = 30

Zig Zag (n,m) = (9,0) = 0

Chiral (n,m) = (10,5)0 < < 30

Graphite Diamond Fullerenes

Synthesis• Arc evaporation method

( Plasma arcing )• Pulsed LASER deposition• Chemical vapor deposition (CVD)

Arc evaporation method ( Plasma arcing )

Pulsed LASER deposition

Chemical vapor deposition (CVD)

Properties• Physical

High Strength , High Resistance & thermal conductivity • Mechanical withstand strain on tension, recover structural distortion• Electrical

metals or semi condutors

Applications

• Energy storage• Hydrogen storage• Electrochemical super capacitors• Field emitting devices• Transistors• Nano probes and Sensors• Composite materials