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OPTICAL EFFECTS ON THE CHARACTERISTICS OF A NANOSCALE FinFET

By R. Ramesh, M. Madheswaran, and K. Kannan

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Abstract:
The effect of optical radiation on a uniformly doped nanoscale FinFET considering quantum mechanical effects has been theoretically examined and analyzed. The device characteristics are obtained from the self-consistent solution of 3D Poisson-Schrödinger equation using interpolating wavelet method. To our best knowledge this is the first approach for the self-consistent solution to surface potential computations of nanoscale FinFET photodetector using interpolating wavelets. This method provides more accurate results by dynamically adjusting the computational mesh and scales the CPU time linearly with the number of mesh points using polynomial interpolation, hence reducing the numerical cost. A fine mesh can be used in domains where the unknown quantities are varying rapidly and a coarse mesh can be used where the unknowns are varying slowly. The results obtained for dark and illuminated conditions are used to examine the performance of the device for its suitable use as a photodetector.

Citation:
R. Ramesh, M. Madheswaran, and K. Kannan, "Optical Effects on the Characteristics of a Nanoscale Finfet," Progress In Electromagnetics Research B, Vol. 21, 235-255, 2010.

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