Conductive thin film and thin film transistor
AssigneePanasonic Corporation
InventorNaohide Wakita
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Abstract
To provide an inexpensive and flexible conductive thin film which is excellent in carrier mobility and electric conductivity and which is formed by highly orienting nanotube or an electronic functional organic material by simple and convenient means, as well as a thin film transistor using the conductive thin film. A conductive thin film (1) is formed by mixing a first material (5) having electric conductivity or semiconductivity and a second material (6) to prepare a mixture and orienting the mixture by utilizing liquid crystallinity thereof.
Claims36
A conductive thin film which is formed by mixing at least a non-liquid-crystalline organic semiconductor compound and a non-liquid-crystalline organic compound to form a liquid crystalline organic semiconductor mixture and orienting molecules of the liquid crystalline organic semiconductor mixture to cause molecules of the organic semiconductor compound to be oriented.
A conductive thin film, which is formed by mixing at least an organic semiconductor compound having a first liquid crystalline phase in which crystallization temperature allowing crystallization from the liquid crystalline phase to occur is not lower than room temperature and an organic compound exhibiting a second liquid crystalline phase of a lower orientational order than the first liquid crystalline phase within a temperature range that is higher than the crystallization temperature of the organic semiconductor compound so as to contain 70 to 98 wt % of said organic semiconductor compound to form a mixed composition and orienting the mixed composition in the second liquid crystalline phase exhibited within a predetermined temperature range to cause molecules of the organic semiconductor compound to be oriented.
A method of fabricating a conductive thin film comprising:
- mixing at least a non-liquid-crystalline organic semiconductor compound and a non-liquid-crystalline organic compound to form a liquid crystalline organic semiconductor mixture;
- and orienting molecules of the liquid crystalline organic semiconductor mixture to cause molecules of the organic semiconductor compound to be oriented.
A method of fabricating a conductive thin film comprising:
- mixing at least an organic semiconductor compound having a first liquid crystalline phase in which crystallization temperature allowing crystallization from the liquid crystalline phase to occur is not lower than room temperature and an organic compound exhibiting a second liquid crystalline phase of a lower orientational order than the first liquid crystalline phase within a temperature range that is higher than the crystallization temperature of the organic semiconductor compound so as to contain 70 to 98 wt % of said organic semiconductor compound to form a mixed composition;
- and orienting the mixed composition in the second liquid crystalline phase exhibited within a predetermined temperature range to cause molecules of the organic semiconductor compound to be oriented.
Dependencies are inferred from the claim text.