Method for controllably varying the electrical properties of nematic liquids and dopants therefor
Abstract
Abstract THERE IS DISCLOSED HEREIN A METHOD FOR CONTROLLABLY VARYING THE ELECTRICAL PROPERTIES OF NEMATIC LIQUIDS OVER A RELATIVELY LARGE ORGANIC MATERIALS THAT PROVIDE IONS IN NEMATIC LIQUIDS ORGANIC MATERIALS THAT PROVIDE IONS IN WHICH THE CHARGE IS DISTRIBUTED OVER SEVERAL ATOMS AND IS SHIELDED FROM THE CHARGE OF THE COUNTERIONS BY A NONPOLAR SHELL. IN ADDITION, THERE ARE DISCLOSED NOVEL MATERIALS WHICH CAN BE ADVANTAGEOUSLY EMPLOYED AS DOPANTS IN THE METHOD. THE DOPANT MATERIALS CAN BE CONVENIENTLY DIVIDED INTO TWO CLASSES: (1) COMPOUNDS CONSISTING OF LARGE ORGANIC IONS OR PRECURSORS FOR LARGE ORGANIC IONS; AND (2) COMPLEX IONS OF AN ALKALI METAL AND A CHELATING AGENT. THE DOPANT MATERIALS RESULT IN IONS IN WHICH THE CHARGE IS DISTRIBUTED OVER SEVERAL ATOMS AND HAVE SUFFICIENT NONPOLAR GROUPS TO INSURE THEIR SOLUBILITY IN A LOWDIELECTRIC CONSTANT LIQUID (THE NEMATIC LIQUIDS), I.E., A DIELECTRIC CONSTANT OF 1-20.
Inventors
- 👤 A Aviram
- 👤 I Haller
- 👤 R Miller
- 👤 W Young
Bibliographic Details
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