An ambipolar dual-channel field-effect transistor (FET) with a WSe₂ /MoS₂ heterostructure formed by separately controlled individual channel layers is demonstrated. The FET shows a switchable ambipolar behavior with independent carrier transport of electrons and holes in the individual layers of MoS₂ and WSe₂ , respectively. Moreover, the photoresponse is studied at the heterointerface of the WSe₂ /MoS₂ dual-channel FET.
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Lee et al. (2016) studied this question.
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