Limitations of Control of Electrophysical Characteristics of Quantum-Size Structures by Electrochemical Capacitance-Voltage Profiling

被引:1
|
作者
Goncharov, V. E. [1 ,2 ]
Nikonov, A. V. [1 ,3 ]
Batmanovskaya, N. S. [1 ,2 ]
Pashkeev, D. A. [1 ,2 ]
Kudryashov, A. V. [3 ]
机构
[1] Orion Res & Prod Assoc, Moscow 111538, Russia
[2] MIREA Russian Technol Univ, Moscow 119454, Russia
[3] Moscow Inst Phys & Technol, Dolgoprudnyi 141700, Moscow Oblast, Russia
关键词
electrochemical capacitance-voltage profiling; concentration of carriers; heteroepitaxial structure; quantum wells; GaAs; AlGaAs;
D O I
10.1134/S1064226920030055
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
A method is proposed to control the distribution of carrier concentration over the profile of multilayer heteroepitaxial structures (HESs) with quantum-size active region based on the AlGaAs/GaAs heteropair grown with the aid of molecular beam epitaxy using electrochemical capacitance-voltage profiling (ECV). A calculation model for the region of the space charge at the electrolyte-semiconductor interface is developed. The ECV profiles of the HES grown on the GaAs < 100 > substrates are analyzed. The limiting depths of the space-charge regions are calculated for different concentrations of carriers in the layers under study. Limitations of the method to control the distribution of carrier concentration in the quantum-size region of the HES are outlined.
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页码:311 / 315
页数:5
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