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Pentacene organic thin-film transistor (OTFT) with high-κ HfTiO gate dielectric has been fabricated. The effects of fluorine plasma and ammonia annealing on the properties of the OTFT have been studied. After treating the dielectric in the plasma, the carrier mobility of the transistor can be improved by about 5 times to 0.0883 cm2/V·s. Moreover, the fluorine plasma treatment can shift the threshold...
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