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- W2387425510 abstract "By analyzing the development of AlGaN/GaN HFET,the optimized design of two dimensional heterostructures is proposed.The energy band tailoring in AlGaN/GaN heterostructure by using polarization charge is investigated according to the self consistent solution of Schr dinger equation and Poisson equation.To tailor the front barrier to rectangular-like using polarization charge can widen the tunneling barrier for hot electrons with high energy and weaken the current collapse.The polarization charge in the back barrier strengthens the quantum confinement and weakens the high electric field peak in channel under pinch off,raising the breakdown voltage and alleviating the current collapse.In thin barrier,the polarization charge maintains the channel well structure and produces strong electron gas after reducing the barrier height.Through the optimized design of two dimensional heterostructures,the high electric field peak in channel and current collapse may be weakened,which will raise the breakdown voltage and output power at high drain voltage." @default.
- W2387425510 created "2016-06-24" @default.
- W2387425510 creator A5048089812 @default.
- W2387425510 date "2007-01-01" @default.
- W2387425510 modified "2023-09-27" @default.
- W2387425510 title "Two Dimensional Energy Band and Heterostructure Design in AlGaN/GaN HFET" @default.
- W2387425510 hasPublicationYear "2007" @default.
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