Matt Kennedy - 2008
Index
Quantum Dot Presentation
• The Quantum Dot• Background• Where We Are Now• Future
The Quantum DotBasically a single electron trapped inside
a cage of atoms
When the dot is exposed to a pulse of light at the right wavelength and time, the electron is raised to an excited state
A second burst of light causes the electron to fall back to its ground state
These dots then have the ability to glow
Light Emitting Quantum Dots
The Quantum Dot
The Quantum Dot
Quantum dots, are a special class of materials known as semiconductors
Semiconductors are a cornerstone of the electronics industry and make possible personal computers
Quantum dots special because they are so small, 4,000,000 dots take up 2cm
Semiconductor Wafer
The Quantum Dot
At these small sizes quantum dots enable never before seen applications to science and technology
New markets and applications emerge as we continue to innovate, work and master the quantum dot technology
Background“The early semiconductor work
of Bell Labs in 1947 led to a whole revolution in electronics”
“When we discovered quantum confinement in nanocrystals in the early 80’s, we knew this would be an exciting area of scientific exploration and discovery” Dr. Alexander Efros
Background
“Explorations into the science of quantum dots began decades ago”
“The technology is finally gaining momentum”
Where We Are Now
We are at the beginning stages of the quantum dot future
Research into harnessing the dots potential is well underway
The following illustrate what technology's are to come
FutureDisplays
Unlike traditional LCDs, which must be lit from behind, quantum dots generate their own light
Depending on their size, the dots can be "tuned" to emit any colour in the rainbow Light Emitting Quantum Dot
Solution
FutureDisplays
The colours of light they produce are much richer than that of other sources
The dots in the near future will be used for extremely thin, bright flat-panel displays
Later on the dots will be built into flexible screens
FutureDisplays
Imagine a foldable wide screen TV, or a truly foldable phone, right in your pocket
Image a future where instead of paint, you have walls which are screens
FutureFoldable Display Example
Foldable / Solar Cell Phone
FutureDisplays
Imagine walls that can display movies or the latest TV show
Walls that can change colours to your mood, and help you get to sleep
Furniture coated with a paint, which can be programmed to show act as a computer or TV
Future
The opportunities are endless
FutureSolar Cells
The solar cell industry is advancing at a rapid pace, spurred on by the increasing need for new and clean sources of power
Quantum dot based solar are poised to play a leading role in this revolution
FutureSolar Cells
Leading researchers and institutions are investigating various ways in which quantum dots can be incorporated into semiconductor surfaces
Or inks and deposited onto low cost materials
FutureSolar Cells
Quantum dots are cost effectively produced in bulk via chemical manufacturing techniques
This will ultimately lead to lower cost higher output cells
FutureSolar Cells
Imagine painting on your roof, a invisible layer of quantum dot solar cells
This could effectively power you whole house, in rain or shine
FutureSolar Cells
Imagine devices that use electricity, have their own solar cell coating
This would enable truly wireless power and independence, away from being stuck near a power outlet
Or cell phones and other portable devices, never needing to be plugged into the power sockets
FutureComputer Storage
Researchers are looking into a solution to vastly increase a computers hard drive space, as well as fast writing speed
So far an answer to this is the Quantum Dot
These quantum dots are tiny “islands” of semiconductor which comprise memory, and are capable of creating storage which is large, fast, and long lasting
FutureComputer Memory
Researchers have recently shown that so far quantum dot memory is capable of storing one terabyte (1000 gigabytes) of data per square inch
They have also shown that it’s possible to write information to this memory in just 6 nanoseconds
That’s blazing fast!
FutureProgrammable Matter
As semiconductor technology and nanotechnology have advanced the use of the term programmable matter has changed
This is now used to reflect the fact that it is possible to build an ensemble of elements which can be "programmed" to change their physical properties in reality not just in simulation
FutureProgrammable Matter
By the manipulation of quantum dots - "artificial atoms" - we can create materials that have some of the properties of real elements
Change the electron population in the quantum dots and you change the material
FutureProgrammable Matter
Imagine materials with unheard-of durability, hardness, conductivity and insulation abilities, and the ability to transition from one mode to another when needed
So effectively you could have a light weight breathable "leather" jacket that turns into high carbon steel when you fall off your motorcycle.
FutureOther Areas
These Include :
Medical Dyes, with the ability to diagnose diseases well ahead of time
Security Tags
And many more, as the technology continues to evolve
Sourceshttp://www.evidenttech.com/
http://www.azonano.com/details.asp?ArticleID=564
http://web.mit.edu/newsoffice/2002/dot.html
http://nextbigfuture.com/2006/05/quantum-dots-could-create-65-efficient.html
http://sparkingtech.com/tech-sci-news/quantum-dots-may-be-future-of-computer-memory/
http://en.wikipedia.org/wiki/Quantum_dot
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