Title of article
Spectral analysis of the emission current noise exhibited by few layer WS2 nanosheets emitter
Author/Authors
Suryawanshi، نويسنده , , Sachin R. and Kolhe، نويسنده , , Pankaj S. and Rout، نويسنده , , Chandra S. and Late، نويسنده , , Dattatray J. and More، نويسنده , , Mahendra A.، نويسنده ,
Pages
7
From page
51
To page
57
Abstract
Spectral analysis of the field emission (FE) current fluctuations has been carried out at the base pressure ~1×10−8 mbar. The emission current stability investigated at preset value of 2 µA is characterized by ‘step’ like fluctuation. The spectral analysis performed on a FFT (Fast Fourier Transform) analyzer revealed that the observed noise is of 1/fα type, with the value of α as ~1.05. The estimated value of α implies that the current fluctuations are mainly due the various processes occurring on atomic scale like adsorption, migration, and/or desorption of the residual gas species on the emitter surface.
Keywords
Current fluctuations , WS2 nanosheets , Noise , Field emission
Journal title
Astroparticle Physics
Record number
2044665
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