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首页> 外文期刊>Physica, B. Condensed Matter >Monte Carlo simulation of high field hole transport in 4H-SiC including band to band tunneling and optical interband transitions
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Monte Carlo simulation of high field hole transport in 4H-SiC including band to band tunneling and optical interband transitions

机译:蒙特卡洛模拟4H-SiC中高能空穴的传输,包括带间隧穿和带间光跃迁

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The high field hole transport in 4H-SiC has been studied using a full band Monte Carlo (MC) simulation model that includes band to band tunneling and allows mixing of the band states during carrier drift. Impact ionization coefficients along the c-axis direction have been extracted and compared with experimental data. It is shown that the band to band tunneling mechanism is crucial in order to explain experimental results. The carrier distribution function obtained from the MC simulations has been used to determine the breakdown luminescence spectra coming from interband transitions. Our results are in good agreement with the available experimental luminescence spectra for SiC polytypes, and the importance of including interband tunneling is clearly demonstrated. (C) 2002 Elsevier Science B.V. All rights reserved. [References: 8]
机译:已经使用全频带蒙特卡罗(MC)模拟模型研究了4H-SiC中的高场空穴传输,该模型包括带间隧穿,并允许在载流子漂移期间混合能态。提取了沿c轴方向的碰撞电离系数,并将其与实验数据进行了比较。结果表明,带间隧穿机制对于解释实验结果至关重要。从MC模拟获得的载流子分布函数已用于确定来自带间跃迁的击穿发光光谱。我们的结果与SiC多型可用的实验发光光谱非常吻合,并且清楚地证明了包括带间隧穿的重要性。 (C)2002 Elsevier Science B.V.保留所有权利。 [参考:8]

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