NONLINEAR FRACTALS AND EXCITON FORMATIONS IN NANOSTRUCTURED SEMICONDUCTORS

Authors

  • Z. Zh. Zhanabayev Казахский национальный университет им. аль-Фараби
  • T. Yu. Grevtceva
  • N. E. Almasbekov
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Keywords:

the fractal model, exciton, photon,

Abstract

We suggest the fractal model for the description energy spectra of excitons in amorphous and porous semiconductors. Because of theirs chaotic structure the famous analogy of exciton to hydrogen-like atom is insufficient. We obtain equations for energy of exciton, biexciton and trion depending on photon energy. Comparison of results of our theory to experimental data of the last years is given in the paper. Theory shows the existence of most universal regularities of dynamical systems.

References

1. Жанабаев З.Ж., Данегулова Т.Ю., Гревцева Т.Ю. Оптические процессы в хаотически наноструктурированных полупроводниках // Мат. 7-й междунар. конф. «Хаос и
структуры в нелинейных системах. Теория и эксперимент». – Астана, 2010. - С. 115-126.

2. Gotoh H., Kamada H., et al. Exciton Absorption Properties of Coherently Coupled Exciton-Biexciton Systems in Quantum Dots // Physical Review В 71. – 2005. – PP. 195334-1 – 9.

3. Gotoh H., Sanada H., Kamada H., Nakano H., Hughes S., Ando H., Temmyo J. Detecting Coupled Excitons with Microphotoluminescence Techniques in Bilayer Quantum Dots // Physical Review В 71. – 2006. – PP. 115322-1 – 6.

4. Kamada H., Gotoh H., Temmyo J., Takagahara T., Ando H. Exciton Rabi Oscillations in a Single Quantum Dot // Physical Review . Vol. 87, No 24. – 2001. – PP. 246401-1 – 4.

5. Zhanabayev Z.Zh., Grevtseva T.Yu. Fractal Properties of Nanostructured Semiconductors // Physica B: Condensed Matter. – 2007. - Vol. 391, № 1. - P. 12-17.

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Published

2017-11-01

Issue

Section

Condensed Matter Physics and Materials Science Problems. NanoScience