Chemists at Vanderbilt University have created a new character of liquid crystals with unique electrical properties that they say could revolutionize digital displays.
received sake from a total of commercial companies who are currently evaluating it.
"We have created liquid crystals with an unprecedented electric dipole, more than double that of existing liquid crystals," says professor Piotr Kaszynski.
"Our liquid crystals have basic properties that cause them suitable for practical applications, but they must be tried for durability, lifetime and similar characteristics."
Electric dipoles are created in molecules by the interval of positivist and negative charges; and the stronger the charges and the greater the space betwixt them, the bigger the electric dipole produced.
In liquid crystals, higher electric dipoles allow a lower threshold voltage: the minimum voltage at which the liquid crystal operates. In addition, at a given voltage, liquid crystals with higher dipoles switch faster than those with lower dipoles.
Thus, the new liquid crystals created by the team could be exploited for displays that run at lower voltages.
What distinguishes the new form of liquid crystals, says the team, is its 'zwitterionic' structure. Zwitterions are chemical compounds that make a total net electric charge of zero but contain positively and negatively charged groups.
The freshly developed liquid crystals contain a zwitterion made up of a negatively charged inorganic portion and a positively charged organic portion.
The team says the find could cause significant scientific as easily as commercial implications: for example, it is enabling the squad to see the impression that a liquid crystal's electric dipole has on the temperature at which it becomes an ordinary liquid.
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