Effect of the grain boundaries on the conductivity and current transport in II-VI films

T. M. Razykov, S. Zh Karazhanov, A. Yu Leiderman, N. F. Khusainova, K. Kouchkarov

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

The paper presents an investigation of the effect of the grain boundaries on the conductivity and current transport in polycrystalline ZnTe, CdS and CdTe films. The temperature dependence of the conductivity of films in parallel σ and perpendicular σ directions to the substrate was studied. It is shown that σ slightly increases with increasing of the temperature for all temperature range considered. We have shown that σ linearly decreases with increasing of the reverse value of temperature 1/T, which indicates that the barrier height does not depend on temperature. We have found that diffusion theory of the conductivity for bicrystals can be applied only at low voltages not exceeding the net voltage on the grain boundaries. At higher voltages, theory of current transport for drift approximation can be used for large grain films. It is concluded that the influence of the intergrain energy barrier height on the electrical properties of II-VI films is negligible at room temperature.

Original languageEnglish
Pages (from-to)2255-2262
Number of pages8
JournalSolar Energy Materials and Solar Cells
Volume90
Issue number15
DOIs
Publication statusPublished - 22 Sep 2006
Externally publishedYes

Fingerprint

Grain boundaries
Temperature
Electric potential
Bicrystals
Energy barriers
Electric properties
Substrates

Keywords

  • CdS thin films
  • CdTe
  • Conductivity
  • ZnTe

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Electronic, Optical and Magnetic Materials
  • Surfaces, Coatings and Films

Cite this

Razykov, T. M., Karazhanov, S. Z., Leiderman, A. Y., Khusainova, N. F., & Kouchkarov, K. (2006). Effect of the grain boundaries on the conductivity and current transport in II-VI films. Solar Energy Materials and Solar Cells, 90(15), 2255-2262. https://doi.org/10.1016/j.solmat.2006.02.025

Effect of the grain boundaries on the conductivity and current transport in II-VI films. / Razykov, T. M.; Karazhanov, S. Zh; Leiderman, A. Yu; Khusainova, N. F.; Kouchkarov, K.

In: Solar Energy Materials and Solar Cells, Vol. 90, No. 15, 22.09.2006, p. 2255-2262.

Research output: Contribution to journalArticle

Razykov, TM, Karazhanov, SZ, Leiderman, AY, Khusainova, NF & Kouchkarov, K 2006, 'Effect of the grain boundaries on the conductivity and current transport in II-VI films', Solar Energy Materials and Solar Cells, vol. 90, no. 15, pp. 2255-2262. https://doi.org/10.1016/j.solmat.2006.02.025
Razykov, T. M. ; Karazhanov, S. Zh ; Leiderman, A. Yu ; Khusainova, N. F. ; Kouchkarov, K. / Effect of the grain boundaries on the conductivity and current transport in II-VI films. In: Solar Energy Materials and Solar Cells. 2006 ; Vol. 90, No. 15. pp. 2255-2262.
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