Himadri Pandey

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Food preservatives play important role in today's food supplies that are used to prolong the self-life of products by protecting them from deterioration caused by micro-organisms. In this study, investigations were carried out to study the impacts of food preservatives like butylated hydroxytoluene, butylated hydroxyanisole, sorbic acid, propyl gallate and(More)
Dual gated graphene field effect transistors (GFETs) were fabricated using mechanically stacked large area chemical vapor deposited (CVD) graphene bilayer. The devices were characterized in ambient conditions at various back gate voltages. Higher induced carrier densities were observed in the device channels at increasingly negative back gate voltages.(More)
This paper presents the design exploration of a basic cascode circuit (CAS) targeted to increase the intrinsic gain A<sub>&#x03BD;</sub> of a graphene field-effect-transistor (GFET) by decreasing its output conductance g<sub>o</sub>. First, the parameters of a large-signal compact-model, based on drift-diffusion carrier transport, are fit to measurements(More)
In this letter, we report on inverters made from graphene field effect transistors with channels of artificially stacked bilayer graphene (ASBLG). The materials were grown by scalable chemical vapor deposition. The devices demonstrate enhanced voltage gain (<inline-formula> <tex-math notation="LaTeX">$\mathrm{A}_\mathrm {v}$ </tex-math></inline-formula>)(More)
An optimization of the current-to-voltage transfer characteristic of a graphene FET (GFET) compact model, based on drift-diffusion carrier transport, is presented. The improved accuracy at Dirac point extends the model usability for GFETs when scaling parameters, such as voltage supply, gate length, oxide thickness, and mobility, for circuit design(More)
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