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Thermodynamics of Energy Models of Semiconductor Devices

机译:半导体器件能量模型的热力学

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In the drift-diffusion model the free energy has turned out to be a very useful quantity. H. Gajewski and K. Groeger applied it in the analysis of the transient initial-boundary value problem. Gajewski also used it to control the step width in the time discretization. Considered as a functional of the carrier densities, the free energy is a thermodynamic potential and a convex functional. Both the properties make the free energy be a very attractive quantity. This integral quantity is, moreover, not too sensitive to local variations of either the carrier densities or the electric field. In the case of variable temperature, however, we observed that the free energy is no convex functional.
机译:在漂移扩散模型中,自由能被证明是非常有用的量。 H. Gajewski和K. Groeger将其应用于瞬态初始边界值问题的分析。 Gajewski还使用它来控制时间离散化中的步长。自由能被认为是载流子密度的函数,是热力学势和凸函数。这两个特性使自由能成为非常有吸引力的量。此外,该积分量对载流子密度或电场的局部变化不太敏感。但是,在温度可变的情况下,我们观察到自由能不是凸函数。

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