Browsing by Author "Zhong, C. W."

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Stability of High Performance p-type SnO TFTs
(2015)
Zhong, C. W.
;
Tsai, H. Y.
;
Lin, H. C.
;
Liu, K. C.
;
Huang, T. Y.
High performance p-type SnO TFTs were fabricated and characterized in this work. Owing to thermal oxygen annealing process, the originally tin-rich oxide film was transformed into a polycrystalline SnO, resulting in decent field-effect mobility and high on/off current ratio. Electrical stability was evaluated by examining the threshold voltage shift under negative bias stresses at different stress times. A scenario considering the passivation/de-passivation of acceptor defects in the channel and the hole trapping of the gate oxide is proposed to explain the observed instability of the SnO TFTs.