Optical properties of quantum dots versus quantum antidots: Effects of hydrostatic pressure and temperature

被引：11

作者：

Naimi, Y. ^{[1
]}

Jafari, A. R. ^{[1
]}

机构：

[1] Islamic Azad Univ, Lamerd Branch, Dept Phys, Lamerd, Iran

来源：

JOURNAL OF COMPUTATIONAL ELECTRONICS | 2014年 / 13卷 / 03期

关键词：

Quantum dots; Quantum anti-dots; Absorption coefficient; Temperature; Pressure; INTERSUBBAND ELECTRONIC-TRANSITIONS; REFRACTIVE-INDEX CHANGES; IMPURITY BINDING-ENERGY; HYDROGENIC IMPURITY; ABSORPTION-COEFFICIENTS; OSCILLATOR-STRENGTHS; DONOR IMPURITY; STATES; FIELD; WELL;

D O I：

10.1007/s10825-014-0585-9

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：

The effects of hydrostatic pressure and temperature on the linear, nonlinear and total absorption coefficients (ACs) of a hydrogenic impurity in the center of spherical quantum dot (QD) and quantum antidot (QAD) have been investigated. The comparative approach is used for presenting the results of both models. Our numerical results indicate that for QD nano-systems, by increasing the pressure, the resonance peak positions (RPPs) of ACs shift towards higher energies, while for QAD nano-systems, RPPs of ACs approximately remain unchanged. Furthermore, the larger pressure leads to the smaller height of resonance peak in both models. Also, our results show that the temperature increasing imposes the opposite effect on RPPs than the pressure increasing to the both models.

引用

页码：666 / 672

页数：7

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