Below is a compilation of research results from scientists all over the world. All values are for Single Wall Carbon Nanotubes (SWNT's) unless otherwise stated. Click on the group heading for each section for a more detailed description, images, and more.

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Equilibrium Structure
Average Diameter of SWNT's			1.2-1.4 nm	^[1]
Distance from opposite Carbon Atoms (Line 1)			2.83 Å	^[1]
Analogous Carbon Atom Separation (Line 2)			2.456 Å	^[1]
Parallel Carbon Bond Separation (Line 3)			2.45 Å	^[1]
Carbon Bond Length (Line 4)			1.42 Å	^[1,23]
C - C Tight Bonding Overlap Energy			~ 2.5 eV	^[23,24]
Group Symmetry (10, 10)			C_5V	^[2]
Lattice: Bundles of Ropes of Nanotubes		Triangular Lattice (2D)		^[2]
Lattice Constant			17 Å	^[2]
Lattice Parameter:
	(10, 10) Armchair		16.78 Å	^[3]
	(17, 0) Zigzag		16.52 Å	^[3]
	(12, 6) Chiral		16.52 Å	^[3]
Density:
	(10, 10) Armchair		1.33 g/cm³	^[3]
	(17, 0) Zigzag		1.34 g/cm³	^[3]
	(12, 6) Chiral		1.40 g/cm³	^[3]
Interlayer Spacing:
	(n, n) Armchair		3.38 Å	^[3]
	(n, 0) Zigzag		3.41 Å	^[3]
	(2n, n) Chiral		3.39 Å	^[3]
.
Optical Properties
Fundamental Gap:
	For (n, m); n-m is divisible by 3 [Metallic]		0 eV	^[13,19]
	For (n, m); n-m is not divisible by 3 [Semi-Conducting]		~ 0.5 eV	^[13,19,23]
.
Electrical Transport
Conductance Quantization		n x (12.9 k)^-1		^[4,5,19]
Resistivity		10^-4 -cm		^[2]
Maximum Current Density		10¹³ A/m²		^[5,12]
.
Thermal Transport
Thermal Conductivity		~ 2000 W/m/K		^[6,15,16]
Phonon Mean Free Path		~ 100 nm		^[15]
Relaxation Time		~ 10^-11 s		^[15]
.
Elastic Behavior
Young's Modulus (SWNT)		~ 1 TPa		^{[3,7,8,9,12,13]}
Young's Modulus (MWNT)		1.28 TPa		^[8]
Maximum Tensile Strength		~30 GPa		^[18]

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Average Diameter of SWNT's

1.2-1.4 nm

Distance from opposite Carbon Atoms (Line 1)

2.83 Å

Analogous Carbon Atom Separation (Line 2)

2.456 Å

Parallel Carbon Bond Separation (Line 3)

2.45 Å

Carbon Bond Length (Line 4)

1.42 Å

C - C Tight Bonding Overlap Energy

~ 2.5 eV

Group Symmetry (10, 10)

C5V

Lattice: Bundles of Ropes of Nanotubes

Triangular Lattice (2D)

Lattice Constant

17 Å

Lattice Parameter:

(10, 10) Armchair

16.78 Å

(17, 0) Zigzag

16.52 Å

(12, 6) Chiral

16.52 Å

Density:

(10, 10) Armchair

1.33 g/cm3

(17, 0) Zigzag

1.34 g/cm3

(12, 6) Chiral

1.40 g/cm3

Interlayer Spacing:

(n, n) Armchair

3.38 Å

(n, 0) Zigzag

3.41 Å

(2n, n) Chiral

3.39 Å

Fundamental Gap:

For (n, m); n-m is divisible by 3 [Metallic]

0 eV

For (n, m); n-m is not divisible by 3 [Semi-Conducting]

~ 0.5 eV

Conductance Quantization

n x (12.9 k)-1

Resistivity

10-4 -cm

Maximum Current Density

1013 A/m2

Thermal Conductivity

~ 2000 W/m/K

Phonon Mean Free Path

~ 100 nm

Relaxation Time

~ 10-11 s

Young's Modulus (SWNT)

~ 1 TPa

Young's Modulus (MWNT)

1.28 TPa

Maximum Tensile Strength

~30 GPa

Jump To

C_5V

1.33 g/cm³

1.34 g/cm³

1.40 g/cm³

n x (12.9 k)^-1

10^-4 -cm

10¹³ A/m²

~ 10^-11 s