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    • Thesis


    • Authors: Jiang, Jinyue (2006)

    • The practical uses of pentacene, the most promising polyacene in the area of organic field-effect transistors, are limited by its sensitivity to oxygen and poor solubility in organic solvents. To overcome these disadvantages, new organic semiconductors, 2,3,6,9, 10,13 -hexa(trimethylsily lethynyl)pentacene, 2,3,9,10-tetrakis(triisopropylsilylethynyl)-6,13-bis(trimethylsilylethynyl)pentacene, and 2,3,9,10-tetrakis(3,5-di-t-butylphenylethynyl)-6,13-bis(trimethylsilylethynyl)pentacene were designed, synthesized, and fully characterized. In comparison with pentacene, they are stable and soluble and have extended 7t-conjugation. Each demonstrates reduction potentials that are essentially ...