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Published bySheena Palmer Modified over 9 years ago
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By Marcus Fuentes Texas A&M University Kingsville
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Special Semiconductor that emits light It comes in an assortment of sizes Sizes determine the color of light is seen
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Some quantum dots are formed because a small region of one material burring in another with a larger band gap Some form spontaneously in quantum well structures A few self assembled form a nucleus spontaneously And some can be created from two dimensional electrons or gases present in remotely doped quantum wells or semiconductor heterostructures
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Colloidal synthesis is the cheapest and least toxic Electrochemical techniques involve templates that are created by an ionic reaction that in turn create quantum dots Pyrolytic synthesis involves the production of large numbers of quantum dots that self- assemble into preferential crystal sizes
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Detection of tumors Used as a substitute for organic dyes Silicon photovoltaic cells Light-emitting diodes and other light sources Used to battle counterfeit money Look at what I can do Toxicity High cost of manufacturing Unable to accurately predict Drawbacks
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Quantum dot is an iridescent nanomaterial Fabrication is expensive New applications found everyday Growing advantages in the medical field Manufacturing is random and toxicity is a possibility
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