Abstract
In this work, the characterization of high mobility thin-film transistors based on zinc nitride films deposited at room temperature by magnetron radio-frequency sputtering is presented. The values extracted of field-effect mobility were >2cm2/Vs for long channel devices. For short channel devices, a reduction of the mobility values is found and, as a result of the analysis of the width-normalized resistance for different channel lengths and gate voltages, the reduction is attributed to the effects of a high contact resistance. The impact of the gate dielectric thickness on electrical characteristics is also presented.
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