In accordance with the first object of this invention soluble derivatives of sexithiophene in which terminal carbons are substituted with various polar groups such as phosphonic esters, phosphonic acids, phosphonates, carboxylic acids, carboxylates, amines, amides, carbamates, and alcohols, each separated from the terminal thiophene rings by one or more methylene groups, are synthesized. An TFT device in accordance with the second objective of this invention employs films of the above sexithiophene derivatives as the semiconducting component. These organic semiconductors are dissolved in common organic solvents and applied to the surface of a substrate using inexpensive, low-temperature solution-based processing such as spin-coating, dip-coating, drop-casting, or microcontact printing.
根据本发明的第一个目标,合成了六
硫代
噻吩的可溶性衍
生物,其中末端碳原子被各种极性基团取代,如
磷酸酯、
磷酸、
磷酸盐、
羧酸、
羧酸盐、胺、酰胺、
氨基甲酸酯和醇,每个基团与末端
噻吩环之间由一个或多个亚甲基组分隔。根据本发明的第二个目标,TFT器件采用上述六
硫代
噻吩衍
生物的薄膜作为半导体组分。这些有机半导体溶解于常见有机溶剂中,并通过廉价、低温基于溶液的处理方法(如旋涂、浸涂、滴涂或微接触印刷)应用到基板表面。