期刊
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
卷 15, 期 18, 页码 6875-6878出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3cp50197c
关键词
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p-Type nanocrystal NiO-based thin-film transistors (TFTs) are fabricated by simply oxidizing thin Ni films at temperatures as low as 400 degrees C. The highest field-effect mobility in a linear region and the current on-off ratio are found to be 5.2 cm(2) V (1) s (1) and 2.2 x 10(3), respectively. X-ray diffraction, transmission electron microscopy and electrical performances of the TFTs with top contact and bottom contact channels suggest that the upper parts of the Ni films are clearly oxidized. In contrast, the lower parts in contact with the gate dielectric are partially oxidized to form a quasi-discontinuous Ni layer, which does not fully shield the gate electric field, but still conduct the source and drain current. This simple method for producing p-type TFTs may be promising for the next-generation oxide-based electronic applications.
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