Abstract
This letter addresses the leakage current in nickel (Ni) metal-induced lateral crystallization (Ni-MILC) polysilicon thin-film transistors (poly-Si TFTs) with multiple nanowire channels and dual-gate. Experimental results reveal that applying multiple nanowire channels improves the Ni-MILC poly-Si TFT performance. However, the leakage current of both single-gate with single-channel and multiple nanowire channels remains high (>10/sup -8/ A), because of the field emission of carriers through the poly-Si grain traps and the defects caused by Ni contamination. Applying the dual-gate structure can suppress the electrical filed in the drain depletion region, significantly reducing the leakage current of the Ni-MILC poly-Si TFT, increasing the ON/OFF ratio.
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