Due to their tiny dimensions, quantum dots posses unique optical and electrical properties

Quantum dot TVs to be launched by mid-2014

British nanotechnology company Nanoco has signed a joint development programme with a South Korean electronics company to bring quantum dot TVs to the market by mid-2014.

Although Nanoco has not specified which South Korean company it has been negotiating with, analysts believe it was the electronics giant LG.According to the announcement, the South Korean company will launch products using Nanoco’s technology as early as July. 

The Manchester-based company is developing cadmium-free quantum dots technology that could be used in future solar panels or LCD displays. Such technology relies on light emitting semiconductor nanocrystals that can provide an alternative to conventional display technology.

"People have come from the analyst presentation with a lot more confidence that the company is on track to achieve the first commercial TV launch in mid-2014," said financial analyst Arun George following the presentation.

"The key takeaway of the result is that they have enough cash to support the company through the commercial launch," he added.

Nanaco's shares dropped as much as 11 per cent in early trading after the company reported a bigger half-year loss and said a plant being built by Dow Chemical in South Korea that would produce its quantum dot technology would not be completed until early next year.

Cadmium-free quantum dots, made of semiconductor materials, enhance colours of display screens such as LED TVs. Due to their minuscule size, quantum dots display unique optical and electrical properties that are different in character to those of the corresponding bulk material. They emit photons under excitation, which are visible to the human eye as light. Moreover, the wavelength of these photons depends not on the material from which the quantum dot is made, but its size.

As manufacturers have developed methods to precisely control the size of a quantum dot, they can determine the wavelength of the emission, which in turn determines the colour of light the human eye perceives. Quantum dots can therefore be “tuned” during production to emit any colour of light desired. 

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