2014 | OriginalPaper | Buchkapitel
Large-Signal Analysis of III-V Nitride Based DD-Transit Time Device: A New Source for THz Power Generation
verfasst von : Moumita Mukherjee, D. N. Bose
Erschienen in: Physics of Semiconductor Devices
Verlag: Springer International Publishing
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Performance of GaN based Double Drift Avalanche Transit Time device is proposed in this paper, for the first time, for useful application in THz-imaging. The device is designed and analyzed by developing a generalized non-linear large-signal simulator that includes effects of elevated temperature, phonon-bottle-necking, scattering limited mobility-velocity and parasitic resistance. The study reveals that the proposed device is capable of generating a pulsed power ~ 0.4 W with an efficiency of 8 % at 1.4 THz under 50 % large signal modulation.