Characteristics Study of 2DEG Transport Properties of AlGaN/GaN and AlGaAs/GaAs/based HEMT

被引:49
|
作者
Lenka, T. R. [1 ]
Panda, A. K. [1 ]
机构
[1] Natl Inst Sci & Technol, Berhampur 761008, Odisha, India
关键词
MOBILITY; POLARIZATION; SIMULATION; ALN/GAN; MODEL;
D O I
10.1134/S1063782611050198
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
Growth of wide bandgap material over narrow bandgap material, results into a two dimensional electron gas (2DEG) at the heterointerface due to the conduction band discontinuity. In this paper the 2DEG transport properties of AlGaN/GaN-based high electron mobility transistor (HEMT) is discussed and its effect on various characteristics such as 2DEG density, C-V characteristics and Sheet resistances for different mole fractions are presented. The obtained results are also compared with AlGaAs/GaAs-based HEMT for the same structural parameter as like AlGaN/GaN-based HEMT. The calculated results of electron sheet concentration as a function of the Al mole fraction are in excellent agreement with some experimental data available in the literature. DOI: 10.1134/S1063782611050198
引用
收藏
页码:650 / 656
页数:7
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