Optimal geometrical parameters of porous layer in silicon solar cells

  • Z. Zh. Zhanabaev
  • К. К. Dikhanbayev
  • Т. Yu. Grevtseva

Abstract

In the present work we have proved theoretically and experimentally that porous silicon layers withoptimal thickness can be effectively used as anti-reflection coatings in solar cells and panels. In our workwe have taken into account joint mechanisms of generation and recombination of free electrons and holesin porous silicon films stimulated by photons. Experimentally these films have been grown by method ofelectro-chemical etching. Regularities of morphology of surfaces of the films have been investigated byuse of scanning electron microscopy. Results of scanning electron microscopy, measuring of short-circuitcurrent, open circuit voltage, and values of etching time necessary for growth of the films with requiredcharacteristics have shown that in case value of thickness of the porous layer is approximately equal totwo thirds of electron diffusion length, than efficiency of the solar cell with porous layer increases by30% in comparison with the corresponding value in the absence of texturing.
Published
2018-07-16
How to Cite
ZHANABAEV, Z. Zh.; DIKHANBAYEV, К. К.; GREVTSEVA, Т. Yu.. Optimal geometrical parameters of porous layer in silicon solar cells. Physical Sciences and Technology, [S.l.], v. 4, n. 2, p. 74-79, july 2018. ISSN 2409-6121. Available at: <http://phst.kaznu.kz/index.php/journal/article/view/136>. Date accessed: 24 oct. 2018. doi: https://doi.org/10.26577/phst-2017-2-136.
Section
Electronics and Related Techology