Full Article - Open Access.

Idioma principal

Optimal light-trapping design in thin-film solar cells enhanced with SiO2/ATO/Graphene layered structure

Shen, Qiang; Zhao, Yongxiang; Chen, Fei; Li, Ling; Zhang, Lianmeng;

Full Article:

Antimony doped tin oxide (ATO), as one kind of transparent conductive oxides (TCO), is applied as electrodes in thin film solar cells. On the basis of the traditional glass/TCO structure on top of amorphous silicon thin-film solar cells, graphene is introduced to form the glass/TCO/Graphene and the glass/Graphene/TCO layered structure, which is aimed at both enhancing the optical absorption of thin-film solar cells as an antireflection coating (ARC) and increasing the electrical conductivity as a TCO electrode. In this paper, SiO2/ATO/Graphene and SiO2/Graphene/ATO structure are selected for the optimal lighttrapping design by using differential evolution method. The effect of graphene is mainly investigated and the thickness of the layers of proposed structure is optimized to enhance the optical absorption of thin-film solar cells to the greatest degree. The theoretical calculation results clearly demonstrate that the proposed SiO2/ATO/Graphene layered structure is obviously superior to the SiO2/Graphene/ATO structure, and it can obtain a higher light-trapping enhancement in the whole visible and near-infrared wavelength range because of the graded refractive index distribution profile.

Full Article:

Palavras-chave: Light trapping, thin-film solar cells, graphene, layered structure, differential evolution (DE),


DOI: 10.5151/matsci-mmfgm-046-f

Referências bibliográficas
  • [1] A. V. Shah, H. Schade, M. Vanecek, J. Meier, E. Vallat-Sauvain, N. Wyrsch, U. Kroll, C. Droz, and J. Bailat, “Thin-film silicon solar cell technology,” Prog. Photovolt. Res. Appl. 12(23), 113–142 (2004).
  • [2] D. E. Carlson and C. R. Wronski, “Amorphous silicon solar cell,” Appl. Phys. Lett. 28(11), 671–673 (1976).
  • [3] Y. X. Zhao, F. Chen, Q. Shen, and L. M. Zhang, “Light trapping design of graphene transparent electrodes for efficient thin-film silicon solar cells,” Applied Optics 51(25), 6245–6251 (2012).
  • [4] Yu. A. Akimov, W. S. Koh, S. Y. Sian, and S. Ren, “Nanoparticle-enhanced thin film solar cells: metallic or dielectric nanoparticles?” Appl. Phys. Lett. 96(7), 073111–073113 (2010).
  • [5] R. R. Nair, P. Blake, A. N. Grigorenko, K. S. Novoselov, T. J. Booth, T. Stauber, N. M. R. Peres, and A. K. Geim, “Fine structure constant defines visual transparency of graphene,” Science 320(5881), 1308 (2008).
  • [6] M. Bruna and S. Borini, “Optical constants of graphene layers in the visible range,” Appl. Phys. Lett. 94(3), 031901 (2009).
  • [7] L. Wu, H. S. Chu, W. S. Koh, and E. P. Li, “Highly sensitive graphene biosensors based on surface plasmon resonance,” Opt. Express 18(14), 14395– 14400 (2010).
  • [8] S. H. Choi, Y. L. Kim, and K. M. Byun, “Graphene-on-silver substrates for sensitive surface plasmon resonance imaging biosensors,” Opt. Express 19(2), 458–466 (2011).
  • [9] K. S. Yee, “Numerical solution of intitial boundary value problems involving Maxwell''s equations in isotropic media,” IEEE Trans. Antenn. Propag. 14(3), 302–307 (1966).
  • [10] R. J. Luebbers, F. Hunsberger, K. S. Kunz, R. B. Standler and M. Schneider, “A frequency-dependent finite-difference time-domain formulation for dispersive materials,” IEEE Trans. Electromagn. Compat. 32(3), 222–227 (1990). http://www.sopra-sa.com.
  • [11] C. Y. Shen, H. J. Feng, Z. H. Xu, and S. Z. Jin, “GaInN light-emitting diodes with omni-directional reflector using nanoporous SnO2 film,” Chinese Optics Letters, 6 (2), 152–153 (2008).
  • [12] R. Storn and K. Price, “Differential evolution—a simple and efficient heuristic for global optimization over continuous spaces,” J. Glob. Optim. 11(4), 341–359 (1997).
  • [13] Y. X. Zhao, F. Chen, Q. Shen, Q. W. Liu, and L. M. Zhang, “Optimizing low loss negative index metamaterial for visible spectrum using differential evolution,” Opt. Express 19(12), 11605–11614 (2011).
Como citar:

Shen, Qiang; Zhao, Yongxiang; Chen, Fei; Li, Ling; Zhang, Lianmeng; "Optimal light-trapping design in thin-film solar cells enhanced with SiO2/ATO/Graphene layered structure", p. 26-29 . In: Proceedings of the 13th International Symposium on Multiscale, Multifunctional and Functionally Graded Materials [=Blucher Material Science Proceedings, v.1, n.1]. São Paulo: Blucher, 2014.
ISSN 2358-9337, DOI 10.5151/matsci-mmfgm-046-f

últimos 30 dias | último ano | desde a publicação