To The New World of Technology NANO TECHNOLOGY by Mr G ID: 811848
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Slide1
WELCOME
To
The New World of Technology
NANO TECHNOLOGY
by
Mr. G.
Yadu
sir
Asst.Prof
.
i
n Physics Dept. Of Physics
Govt. Rajeev
Lochan
College
Rajim
Chhattisgarh
Slide2Synopsis
Introduction Nano particles&Nano Scale.Particles
size, shape and the nature of the surface
Nanotechnology time line
Definition and explanations
A real revolution changes in nanotechnology.
Applications ...
Slide3Introduction of Nanotechnology
The word “Nano” comes from a Greek word “Dwarf” and “technology” reference to dimension of 10
-9.
Nanotechnology reference to ability to works with individual atoms and molecules.
The field of nanotechnology was first proposed by Richard Feynman in 1959 in his influential speech “there is plenty of room at the bottom”.
Slide4Nano particles&Nano
Scale
Slide5particles size, shape and the nature of the surfaceThe size of most atom is 0.1 to 0.2nm.
Nanocluster
,
Nanorod
,
Nanostar
,
Nanoshere
,
Nanocube
etc
Slide6Nature of Surface
Slide7Top-Down &Bottom up Approach
Top-Down Approach:- Physical method to Chemical method
Bottom Up Approach:-
Chemical Method to Physical
method
Slide8Nanotechnology time line
4Century:- “Lycurgus Glass”(Rom)6-15 Century:- Glass window 1857 :- “Ruby gold”
1936 :-Microscope
1947 (IT):- Semiconductor Transistor
1956:- Molecular Engineering
1958:- IC chip
1959:- Feynman “There is plenty at the room of bottom”
1965:-Moore’s law
1974(NT):-
Norio Taniguchi & Nanotechnology
Slide91985:- Buck minister fullerine
Bucky ball, brus descoverd SC Nanocrystl1989:- Manipulates 35
indivisual
zenon
atom to spell IBM
1991:- CNT2006:- Nanocar made by C
60
(
Phenylene
Ethynylene
with 4 C60bucky ball)
Slide10Definition and explanations
Feynman’s famous speech:- Richard Feynman lectured on “there is plenty of room at the bottom”.
Moore’s Law
:- ‘The number of transistors on Integrated Circuits (
Ics
) doubled every 2 years. This is prediction and not a low of physics.
Norio Taniguchi & Nanotechnology :-
The Japanese scientist used this term 1974 to describe the semiconductor process such as thin film deposition on the order of
nanometer
.
He said:- “Nanotech mainly consist of the processing of separation, consolidation and deformation of materials by one atom or one molecules”.
Slide11A real revolution changes in nanotechnology happen
When three major branches works together-nanotechnology, biotechnology & information technology(IT). Nanotech will be able to after self hilling and self assembling model.
Biotechnology will contribute self replicating biological processes
IT will gives system at molecules levels.
Slide12Applications ..
Textiles:- Electro conducting textiles, medical textiles, self-cleaning textiles, UV textiles etc.
Biomedical:-
Control relies of drags, cancer therapy, wound dressing etc.
Health care:-
Imaging, Antibacterial, sun's cream, MRI , UV protection etc.
Food Agriculture:-
Fungicides, food packaging etc.
Industrial:-
Self-cleaning surface, functional
nano
composites etc.
Electronics:- Quantum computer, high desisting data storage, single electrons transistor, Quantum laser etc.Environment :-
Waste water treatment, pollution control monitoring etc.
Renewable energy :-
Paint on solar cells, Hydrogen production etc.
Slide13Thank YouAny Question ???????