A presentation on applications of Carbon Nanotube

1. Welcome to the Nano world of
Carbon Nanotubes
 Presented by
 Md. Tazul Islam
 Student No:0511027

2.  Materials Science is based on SCP3
Which stands for
S=Structure
C=Characterization
P=Properties
=Processing
=performance
The Materials Science
Tetrahedron

3. Fields of Application
 Structural  Metallic and semiconducting
 Electromagnetic nanotubes
 Chemical  Carbon Nanotube
 Mechanical Interconnects
 Polymer Composites  As a vessel for drug delivery

4. Structural
 Combat Jackets
 Space Elevator
 Clothes
 Concrete
 Bridges
 Polyethylene

5. The completed cable would be thickest at the geostationary orbit, where the tension was
greatest, and would be narrowest at the tips to reduce the amount of weight per unit area
of cross section that any point
The cable must be made of a material with a large tensile strength/density ratio.
Carbon nanotubes' theoretical tensile strength has been estimated between 140 and
177 GPa (depending on plane shape), and its observed tensile strength has been
variously measured from 63 to 150 GPa, close to the requirements for space
elevator structures

6. Electromagnetic
 Artificial muscles  Displays
 Buckypaper  Transistors
 Superconductors  Conductive films

7. .
Prototype of NED

8. Nano Emissive Display
NED is basically a thin, flat cathode ray tube with thousands of electron guns
at each pixel. In the past, carbon nanotubes have been pasted or printed
onto a surface but the quality of the resulting display has been disappointing.
On a back plate, only 3 mm behind each sub-pixel, we place a small structure
that contains about one thousand carbon nanotubes arranged such that a
properly applied voltage excites each nanotube to bombard the color
phosphors with electrons.
It will extend the life of large flat panel displays to up to 30,000 hours as well
as reduce the price to half (about 400 $) where plasma starts to see “burn in”
aging effects at only 2,000 hours.

9. Chemical
Water Filter
Hydrogen Storage
Air Pollution Filter
Biotech Container

10. Despite tiny size, they can filter
water more efficiently than current
 Carbon nanotubes used by the researchers are sheets of carbon
atoms
 only seven water molecules can fit across their diameter
 The super smooth inside of the nanotubes allow liquids and
gases to rapidly flow through
 water flow rates is 10,000 times faster than would be predicted
by classical equations
 Salt removal from water, commonly performed through reverse
osmosis, uses less permeable membranes, requires large
amounts of pressure and is quite expensive.
 However, these more permeable nanotube membranes could
reduce the energy costs of desalination by up to 75 percent
compared to conventional membranes used in reverse osmosis.

11. Mechanical
Oscillator Nanotube Slick surface
membrane

13. In Semiconducting Sector
Fig: Arrays of carbon nanotubes in
a semiconductor
When CNTs are fabricated a mixture of metallic and semiconducting nanotubes is
formed. This carbon nanotube can be used as light emitting semiconductors.

14. When excited by a UV laser, titanium dioxide
nanoparticles undergo charge separation,
where some of the semiconductor’s electrons
get trapped—a 3,770 electrons .Electrons
trapped in the titanium dioxide displayed a
blue coloration
For SWCNTs in the titanium dioxide particles, the blue color decreased. This
lack of color meant that some of the electrons trapped in the titanium dioxide
were transferred to the SWCNTs.
Complete transfer consisted of 1 electron
per 32 atoms of carbon atoms (building
blocks of the SWCNTs), and occurred in
just 10 nanoseconds. Such a high electron
capacity turned the SWCNTs into
supercapacitors, which can be useful in
electronics application

15. Carbon nanotube interconnects are used in universal memory. The high density
CMOS RAM can replace conventional RAMs
and flash memory with even better performance.

16. Only in sophisticated fields???
Answer is No

17. In Sports
Tour de France winning bike
NanoDynamics golf ball
This ball is engineered with nanoparticles to
spin less, which should mean less slices and
hooks. The bad news? Lower spin could mean
shorter drives. But NanoDynamics is working
to put more pop into the balls by hardening
their shell.

18. Acknowledgement
http://en.wikipedia.org/wiki/
http://www.google.com.bd/
http://www.azonano.com/details.asp?ArticleID=1108
http://www.wise-intern.org/journal/2007/PfautschFinal07.pdf
http://robotics.uta.edu/mntv/pdf/CarbonNanotubes-PowerPt.pdf
http://physicsworld.com/cws/article/print/1761
http://www.azonano.com/details.asp?ArticleID=980
http://electronicdesign.com/Files/29/10818/Figure_02.gif
http://en.wikipedia.org/wiki/John_Ernst_Worrell_Keely
http://www.springerlink.com/content/d7u067vheerx1dql/
http://www.answers.com/carbon+nanotube&r=67
http://scitation.aip.org/getabs/servlet/GetabsServlet?
prog=normal&id=APPLAB000083000024004996000001&idtype=cvips&gifs=y
es
http://www-als.lbl.gov/als/science/sci_archive/129nanotube.html
http://www.nanowerk.com/spotlight/spotid=4154.php
http://www.nanowerk.com/spotlight/id4154_4.jpg
http://nanotechweb.org/cws/article/tech/22244/1/
http://technocrat.net/d/2006/5/21/3618
http://cleantechnica.com/2008/09/15/carbon-nanotubes-might-be-used-in-
future-water-filters/
http://www.physorg.com/news107419836.html

19. Thanks 2 all
for being patient &
listening