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High-performance polycrystalline-silicon (poly-Si) nanowire (NW) thin-film transistors (TFTs) are demonstrated using excimer laser crystallization to control the locations of grain boundaries two-dimensionally. Via the locally increased thickness of the amorphous-silicon (a-Si) film as the seeds, the cross-shaped grain boundary structures were produced among these thicker a-Si grids. The NW TFTs with...
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