Electroluminescence energy efficiency of Si-structures with different compound of nanoscale dislocation complexes

  • D. P. Slobodzyan
  • M. O. Kushlyk
  • B. V. Pavlyk
Original Article


Changes in the defect structure and luminescence properties of silicon p-type crystals surface layer under the influence of plastic deformation and high temperature annealing in oxygen atmosphere were investigated. A special role of dislocations in the surface layer of silicon during the formation its energy spectrum and rebuilding the defective structure was established. It is shown that the concentration of linear defects more than 104 cm−2 enriched subsurface layer with electrically-active complexes (dislocation—oxygen, dislocation—vacancy, dislocation—interstitial atoms of silicon) that are effective radiative recombination centers. It has been demonstrated that mixed treatment of silicon crystals by plastic deformation, high temperature annealing in the flowing oxygen atmosphere and elastic deformation at the final stage increases the energy efficiency of the radiative structures.


Silicon Dislocation-related luminescence High-temperature annealing Irradiative recombination centers in silicon Energy efficiency 



Light-emitting structures


Dislocation-related electroluminescence


Near infrared


Band-edge electroluminescence


Silicon crystals grown by Czochralski method




Flow oxygen atmosphere


Full width at half maximum


Authors’ contribution

BP and MK initiated the research, designed the experimental strategy. MK and DS performed the treatment of silicon crystals and production of barrier and light-emitting structures. MK carried of the EL spectra’s measurements and DS performed the energy efficiency calculations. BP and DS performed the data analysis and drafted the manuscript. All authors read and approved the final manuscript.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no competing interests.


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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • D. P. Slobodzyan
    • 1
  • M. O. Kushlyk
    • 1
    • 2
  • B. V. Pavlyk
    • 1
  1. 1.Department of Sensor and Semiconductor ElectronicsIvan Franko National University of LvivLvivUkraine
  2. 2.Institute of Physics, Polish Academy of SciencesWarsawPoland

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