[19a-311-1~12] 17.3 Layered materials

[19a-311-9] Multilayer titania nanosheet FET by electrode interface modification

〇(M2)Keiichiro Ikeda¹, Masaya Sato¹, Masahiro Hara², Asami Funatsu^2,3, Ryo Nouchi^1,3 (1.Osaka Pref Univ., 2.Kumamoto Univ., 3.JST-PRESTO)

Keywords:titania nanosheet, interface control, charge injection barrier

A titania nanosheet is a two-dimensional form of titanium oxide (IV), and expected to be used in photocatalytic applications. From the viewpoint of a channel material of a field-effect transistor (FET), a high electron-injection barrier, which is deduced from the high electron affinity of titania nanosheets, is a major obstacle for the FET operation. In this study, we introduced a thin ZnO layer as an electron-injection layer to the interface between the source/drain electrodes and the titania nanosheet layer, and successfully achieved the FET operation.