Y. Satish Kumar

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Since the advent of new nanotechnologies, the variability of gate delay due to process variations has become a major concern.This paper proposes a new gate delay model that includes impact from both process variations and multiple input switching.The proposed model uses orthogonal polynomial based probabilistic collocation method to construct a delay(More)
The percolating conductance of a new class of nanocomposite thin-film transistors, with channels composed of isotropic ensembles of nanotubes or nanowires, is analyzed as a function of wire/tube density and channel length. The conductance exponents are validated against analytical results for short channel transistors, and against available experimental(More)
—By generalizing the classical linear response theory of " stick " percolation to nonlinear regime, we find that the drain–current of a nanobundle thin-film transistor (NB-TFT) is described under a rather general set of conditions by a universal scaling formula I D = A/L S ξ(L S /L C , ρ S L 2 S) × f (V G , V D), where A is a technology-specific constant, ξ(More)
CNT nanocomposites used for thin-film transistors (TFTs) provide one of the first technologically-relevant test beds for 2D heterogeneous percolating systems. The characteristics of these TFTs are predicted by considering the physics of heterogeneous finite-sized networks and interfacial traps at the CNT/gate-oxide interface. Close agreement between our(More)
A numerical technique that relies on modifying the organic semiconducting host with metallic carbon nanotubes ͑CNTs͒ to increase the transconductance or, equivalently, reduce effective channel length ͑L eff ͒ has recently been proposed. The authors use an extensive set of experimental data to analyze the performance of these transistors using the theory of(More)
We develop an electrothermal transport model for nanocomposite thin films based on self-consistent solution of drift-diffusion and Poisson equations for electrons coupled with diffusive transport of heat. This model is used to analyze the performance of an electronic display the pixels of which are controlled by carbon nanotube ͑CNT͒ network thin-film(More)
Thermal and electrical transport in a new class of nanocomposites composed of random isotropic two-dimensional ensembles of nanotubes or nanowires in a substrate (host matrix) is considered for use in the channel region of thin-film transistors (TFTs). The random ensemble of nanotubes is generated numerically and each nanotube is discretized using a finite(More)
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Flexible electronics provides new opportunities to broaden the range of application of electronic component in addressing the grand challenges of energy, health care, sensing and display technologies. While there have been considerable progress in this area based on advances of conducting polymers, newer approaches based on nanonet fabrics, transfer-printed(More)
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