Low-frequency electronic noise in single-layer MoS2 transistors.
Ubiquitous low-frequency 1/f noise can be a limiting factor in the performance and application of nanoscale devices. Here, we quantitatively investigate low-frequency electronic noise in single-layer transition metal dichalcogenide MoS2 field-effect transistors. The measured 1/f noise can be explained by an empirical formulation of mobility fluctuations with the Hooge parameter ranging between 0.005 and 2.0 in vacuum (<10(-5) Torr). The field-effect mobility decreased, and the noise amplitude increased by an order of magnitude in ambient conditions, revealing the significant influence of atmospheric adsorbates on charge transport. In addition, single Lorentzian generation-recombination noise was observed to increase by an order of magnitude as the devices were cooled from 300 to 6.5 K.
Department of Materials Science and Engineering, Northwestern University , Evanston, Illinois 60208, United States.
Vinod K
VK
Sangwan
Heather N
HN
Arnold
Deep
D
Jariwala
Tobin J
TJ
Marks
Lincoln J
LJ
Lauhon
Mark C
MC
Hersam
D004220:Disulfides / Q000737:chemistry*; D004581:Electronics; D008982:Molybdenum / Q000737:chemistry*; D049329:Nanostructures / Q000737:chemistry; D036103:Nanotechnology; D014173:Transistors, Electronic
D004220:Disulfides; D008982:Molybdenum; C082964:molybdenum disulfide