Patent attributes
A layered metal oxide field effect material forms a heterojunction from metal oxides with different band gaps, and defines a band gap difference (ΔE)≥1 eV. Band bending is generated at the interface of the heterojunction, such that a potential barrier is formed on the side with the larger band gap and a triangular potential well is formed on the side with the smaller band gap, and under the induction of a gate electric field, a polarized charge is generated at the interface of the heterojunction, and a large number of carriers are accumulated. Therefore, the present layered metal oxide field effect material has high carrier mobility higher than 103 cm2/V·s, and overcomes the problem that the carrier mobility of a conventional metal oxide field effect material is low, it is required to fabricate the metal oxide field effect material into a crystal phase structure with a relatively high cost, and even that a substrate thereof with a crystal phase structure is required.
