final nanotech
TRANSCRIPT
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HISTORY
The idea ofnanotechnology was bornin December 29, 1959when physicist RichardFeynman gave a lectureexploring the idea of
building things at theatomic and molecularscale.
Richard Feynman.
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Because it canbringrevolution inthe current
industrialization andmanufacturingprocesses.
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WHAT IS NANOTECHNOLOGY?
Simply stated, it is theworld of the very small
things, such as moleculesand atoms.
Greek English
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WHAT IS NANOTECHNOLOGY?Nanotechnology is the art and science of
manipulating matter at the nanoscale
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NEED FOR
NANOTECHNOLOGY ? Allows the placement of small structures placedwith
precision,simplicity and low cost
Leads to economic growth
Enhances national security
Improves the quality of life
Leads to create jobs
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CNTs are the alloptropes of carbon with acylindrical nanostructure.
These have been constructed with lengthto diameter ratio upto 28,000,000:1.
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APPLICATIONS:-
To make bullet proofclothes.
In electric circuits.
In solar cells. In paper batteries.
In NRAM (nanoRAM).
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Nano Transistors
Nano Diodes
OLED (Organic Light Emitting Diode)
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Plasma Displays
Quantum Computers
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Fuel Cells
Solar Cells
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Batteries
EnergyCapture andStorage
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NANOGENERATORS
y Ananogenerator is any nanoscale device used togenerate power. Alternatively, a nanogeneratormay be any generator that uses nanoscale tools,
like nano wires, to generate electricity.
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. In this work, we present a direct-write technology toProduce and place piezoelectric PVDF nanofibers at
the same time with the in-situ poling and mechanicalstretching process simultaneously as the foundation fornanogenerators .
Schematic showing the experimental setup for the piezoelectric chargedetection from an individual barium-titanate nano wire.
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A graph showing spikes of electricdischarge as the nano wires are
scanned
NANO WIRES
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Design and fabrication of nano generator
Nanowires made of zinc oxide convert vibrations into electricity
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FABRICATION PROCESS OF THE NANOGENERATOR
. First, two aluminum electrodes areput on the plastic substrate
The aluminum electrodes serve as thecollector for piezoelectricity
measurement.
Secondly, we directly write PVDFNanofiber across two grounded
aluminum electrodes using theN
FES
process.
Finally, silver pastes are applied the two ends ofPVDF nanofiber sothat the bonding between nanofiber and electrodes are reinforcedand the contact resistance is reduced.
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ADVANTAGES AND POTENTIAL APPLICATIONS:
The piezoelectric nano generator could potentially
convert the following into electric energyfor self-powering nano devices and nano systems:
mechanical-movement energy, such as body or
muscle movement or blood pressure;
vibration energy, from acoustic or ultrasonicwaves; and
hydraulic energy, such as from the flow of bodyfluids or blood, the con-traction of blood vessels,or dynamic fluid in nature.
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MECHANICALENERGY
VIBRATIONALENERGY
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HOWMUCH ENERGY A PERSON CAN GENERATE?
The average person's body could, theoretically, generate
100 watts of electricity using a bio-nano generator. However, thisestimate is only true if all food was converted to electricity, and the human body needs some energy consistently, so possiblepower generated is likely much lower. The electricitygenerated by such a device could power devices embedded in thebody (such as pacemakers), or sugar-fed nanorobots.
Mechanical Energy
our body produces:
Blood flow: 0.93watts
Exhaling: 1.00
watts
Inhaling: 0.83
watts
Walking: 67.0
watts
Electrical Energy
available from our
body:
Blood flow: 0.16 watts
Exhaling: 0.17 watts
Inhaling: 0.14 watts
Walking: 11.4 watts
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A NANOGENERATOR SHOWN WITH A PACEMAKER.
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New nanotechnology electrodes
could generate electricity at lowercost than solar arrays
Astudy published in the American
Chemical Society's journal NanoLetters reveals that thermocells basedon carbon nanotube electrodes mighteventually be used for generating
electrical energy from heat discardedby chemical plants, automobiles andsolar cell farms
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With NT, we can create uniquematerials and products whichare:
StrongerLighterCheaperDurablePrecise
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Computers can become a billion times faster and a milliontimes smaller
AutomaticP
ollution Cleanup
Manufacturing at almost no cost
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End of Illnesses (i.e. cancer, heart disease)
Universal Immunity (i.e. aids, flu)
BodySculpting(i.e. change your appearance)
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Loss of jobs (in manufacturing, farming, etc)
Carbon Nanotubes could cause infection of lungs
Oil & Diamonds could become worthless
Atomic weapons could be more accessible anddestructive
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Examples of Future Use of NTElectronic Paper
NokiaMorph
Contact Lens
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National Science and TechnologyCouncil (USA)claims that:
Nanotechnology is an enabling technology that will
change the nature of almost every human-made objectin the next century.
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Only a fool knows everything.Awise man knows how little he knows.