Coefficient of Interband Light Absorption by InAs/GaxIn1-xAs Quantum Dot Superlattice at Low Temperatures

Journal Title: Фізика і хімія твердого тіла - Year 2017, Vol 18, Issue 2

Abstract

In the paper the InAs/GaxIn1-xAs superlattice system of small size cubic QDs (10 nm) has been considered. Dispersion relations for electron and hole subbands have been calculated for superlattices of different dimensionality. The dependences of the interband absorption coefficient on light frequency, quantum dot size and interdot distance have been researched.It is shown, that the dimension of the superlattice has influence on the shape of the absorption bands and the increasing of the distance between quantum dots is followed by narrowing of the absorption peaks for all three superlattice types.

Authors and Affiliations

V. I. Boichuk, I. V. Bilynskyi, R. I. Pazyuk

Keywords

Related Articles

Laser Illumination Influence on the Optical Characteristics of As40S60-xSex (0 ≤ x ≤ 15) Films

The results of investigation of the As40S60-xSex amorphous films transmission spectra depending on thickness, exposure and heat treatment conditions are given. It was established that the increase of Se content in films...

Structure and Properties of Materials on the Basis of Ag-Pb-Sb-Te with High Thermоelectric Figure of Merit

The review of works devoted to the study of thermoelectric, thermodynamic and mechanical properties of highly efficient thermoelectric materials in the system Ag-Pb (Sn) -Sb-Te. It is shown that based on them can be obta...

Electrochemical properties Nanodispersed iron oxide in aqueous electrolytes

Nanodispersed iron oxide was synthesized by sol-gel citrate method and investigated as electrode material for the electrochemical power sources, which based on non-aqueous electrolytes (3.5M KOH). The electrochemical res...

The Electrical Conductivity in Superlattices of Spherical Quantum Dots

We investigate the electrical properties of semiconductor spherical GaAs/AlxGa1-xAs quantum-dot systems of different dimensionality depending on the Fermi level position and temperature, and concentration of aluminum in...

Thermoelectric Lead Telluride with ZnO Nanoparticles

An X-ray diffraction structural study and measurement of Seebeck coefficient (S), the electrical conductivity (σ) and thermal conductivity (χ) for Lead Telluride with nanoinclusions of ZnO. The calculated value of the sp...

Download PDF file
  • EP ID EP264057
  • DOI 10.15330/pcss.18.2.151-157
  • Views 59
  • Downloads 0

How To Cite

V. I. Boichuk, I. V. Bilynskyi, R. I. Pazyuk (2017). Coefficient of Interband Light Absorption by InAs/GaxIn1-xAs Quantum Dot Superlattice at Low Temperatures. Фізика і хімія твердого тіла, 18(2), 151-157. https://europub.co.uk/articles/-A-264057