TODAY: 05 January 2009

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Quantum dots Wednesday, 23 January 2008          Will Quantum Dots Replace Light Bulbs      The qustion is not will its when!     Quantum Dots have the unique ability to emit light representing the entire rainbow of colors from the same elemental material based solely on the size of the     particles  of that material being excited.        How do quantum dots work? When Quantum Dots (essentially nanocrystals of certain semiconductors) are excited the wavelength of light emitted is controlled by the relationship between the size of the nanocrystal and the level of confinement of the electrons within the particle. By narrowly controlling the particles distribution (PSD) of the quantum dot crystals to within 10 nanometers, discreet colors can be emitted with wave lengths representing the entire visible spectra. Prior to quantum dots, light emitting semiconductors, such as light emitting diodes L.E.D., could not emit white light. With the development of quantum dots with particle size distributions less than 500 nanometers (nm), L.E.D. emissions in the blue range can be achieved which may allow for the commercial use of solid state semiconductors to generate luminescent light. Quantum Dots have the unique ability to emit light representing the entire rainbow of colors from the same elemental material based solely on the size of the particles of that material being excited. Prior to quantum dots, light emitting semiconductors, such as light emitting diodes L.E.D., could not emit white light. AE Quantum Dots with particle size distributions less than 500 nanometers (nm) produce L.E.D. emissions in the blue range which may allow for the commercial use of solid state semiconductors to generate luminescent light. The resulting revolution could be compared to Thomas Edison's original invention of the light bulb; the technology which L.E.D. lighting would potentially render obsolete.   In other nano news:  IBM researchers unveiled the first single-molecule switch       Last Updated ( Friday, 07 March 2008 )   < Prev   Next > [ Back ] Top | Home (2.0) | The Store | GeneticMemory's Blog | CyberHood | Tool Time | Links | FAQs | Nano's Forums | News | Search | Contact Us | Our Story | Voice & Video Chat |

Wise Words   New Articles RESET Resistance and Commerce Supermouse Intrusive Brain Reading Surveillance Technology Pt.4 KUKU :The Absence of Cool Orgin of the Ancient Egyptians Of National Lies and Racial Amnesia W.B.A.I. Free Speech Radio (updated) Form 1040 Media Center QuickNav Quick Navigation TopHome (2.0)The StoreGeneticMemory's BlogCyberHoodTool TimeLinksFAQsNano's ForumsNewsSearchContact UsOur StoryVoice & Video ChatJoomla! ForumsAdministrator

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