dots 300x225 Quantum Dots Used To Build RGB Laser

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By Sunil Kumar

Make crystals of silicon small enough – less than 10 nanometres – and their tiny dimensions can then change the way atoms behave and react in the presence of other things.

These tiny bits of semiconductor crystals – so-called quantum dots – have such remarkable, novel properties that scientists think they will soon be used in everything from light bulbs to imaging of cancer cells or in the design of ultra-efficient solar cells.

Instead of looking for brand new materials to build different devices, then, quantum dots make it possible to use a single type of semiconductor to produce a range of different characteristics etc.

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