Journal
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
Volume 183, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jpcs.2023.111653
Keywords
Field effect transistor; Photodetector; Indium selenide; Data storage; 2D material
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Mechanically exfoliated two-dimensional alpha-In2Se3 flakes are used as channel material in field effect transistors, showing good conductivity and visible light response.
Mechanically exfoliated two-dimensional alpha-In2Se3 flakes are used as the channel material in field effect transistors. N-type conduction with 0.14cm2Vs carrier mobility is reported. The good gate modulation and the pronounced hysteresis make the device suitable for a wide range of applications, from digital logics to memories. An order of magnitude current increase is observed under illumination by a blue light at the incident optical power of 19 nW. The devices can work as visible-to-infrared wide-band photodetectors with time response of fewhundred milliseconds, responsivity up to 40 A/W and specific detectivity D* = 5 & sdot;1011 Jones at low light intensity.
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