https://scholars.lib.ntu.edu.tw/handle/123456789/484841
標題: | Ambipolar field-effect transistors by few-layer InSe with asymmetry contact metals | 作者: | Lin, C. Y. Ulaganathan, R. K. Sankar, R. Chou, F. C. |
公開日期: | 2017 | 出版社: | American Institute of Physics Inc. | 卷: | 7 | 期: | 7 | 起(迄)頁: | 075314-1 - 075314-6 | 來源出版物: | AIP Advances | 摘要: | Group IIIA-VIA layered semiconductors (MX, where M = Ga and In, X = S, Se, and Te) have attracted tremendous interest for their anisotropic optical, electronic, and mechanical properties. In this study, we demonstrated that metal and InSe junctions can lead to carrier behaviors in few-layered InSe FETs. These results indicate that the polarity of few-layered InSe FETs can be determined by using metals with different work functions. We adopted FET S/D metal contacts with asymmetric work functions to reduce the Schottky barriers of electrons and holes, and discovered that few-layered InSe FETs with carefully selected metal contacts can achieve ambipolar behaviors. These results indicate that group IIIA-VIA layered semiconductor FETs with asymmetry contact metals have great potential for applications in photovoltaic devices, optical sensors, and CMOS inverter circuits. © 2017 Author(s). |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/484841 | ISSN: | 21583226 | DOI: | 10.1063/1.4995589 | SDG/關鍵字: | Layered semiconductors; Metals; Schottky barrier diodes; Semiconducting selenium compounds; Semiconductor devices; Work function; Ambipolar behavior; Ambipolar field; CMOS inverters; Electrons and holes; Metal contacts; Photovoltaic devices; Schottky barriers; Selected metals; Field effect transistors |
顯示於: | 凝態科學研究中心 |
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