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Author Suryawanshi, Sachin R. ♦ Chaudhari, Nilima S. ♦ Warule, Sambhaji S. ♦ More, Mahendra A.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY ♦ CHARGE CARRIERS ♦ CONCENTRATION RATIO ♦ CURRENT DENSITY ♦ ELECTRIC FIELDS ♦ ELECTRONS ♦ FIELD EMISSION ♦ ILLUMINANCE ♦ NANOSTRUCTURES ♦ NONLINEAR PROBLEMS ♦ SEMICONDUCTOR MATERIALS ♦ SHEETS ♦ TIN SULFIDES ♦ VALENCE ♦ VISIBLE RADIATION
Abstract Here in, we report photo-sensitive field emission measurements of SnS{sub 2} nanosheets at base pressure of ∼1×10{sup −8} mbar are reported. The nonlinear Fowler-Nordheim (F-N) plot is elucidate according to a (F-N) model of calculation based on shift in a saturation of conduction band current density after light illumination and prevalence of valence band current density at high electric field values. The model of calculation suggests that the slope variation before and after visible light illumination of the F-N plot, in the high-field and low-field regions, does not depend on the magnitude of saturation but also depend on charge carrier (electron) concentration get increased in conduction band. The F-N model of calculation is important for the fundamental understanding of the photo-sensitive field emission mechanism of semiconducting SnS{sub 2}. The replicate F-N plots exhibit similar features to those observed experimentally. The model calculation suggests that the nonlinearity of the F-N plot is a characteristic of the photo-enhanced energy band structure of the photo-sensitive semiconductor material.
ISSN 0094243X
Educational Use Research
Learning Resource Type Article
Publisher Date 2015-06-24
Publisher Place United States
Volume Number 1665
Issue Number 1


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