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Dual-interface gratings for broadband absorption enhancement in thin-film solar cells

(2012) PHYSICAL REVIEW B. 85(11).
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Abstract
We numerically study complex dual-interface grating systems to enhance absorption efficiency in thin-film silicon solar cells. We combine a plasmonic grating at the back side of the solar cell with a dielectric grating at the front side of the cell. We show a proof of principle, with one-dimensional gratings, that the distinctly different nature of the gratings can provide complementary enhancement mechanisms, which we further exploit by tailoring the specific periodicities, and by introducing blazing. Having different periods at specific interfaces allows for more efficient diffraction into both plasmonic and dielectric guided modes. In addition, grating specific blazing exposes extra modes to normal incident light through symmetry breaking. Multiple optimization routes are possible depending on the choice of photonic phenomena.
Keywords
LIMIT, DESIGN, Plasmonics Solar cells Blazed grating structures waveguide modes

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Citation

Please use this url to cite or link to this publication:

Chicago
Abass, Aimi, Khai Quang Le, Andrea Alù, Marc Burgelman, and Björn Maes. 2012. “Dual-interface Gratings for Broadband Absorption Enhancement in Thin-film Solar Cells.” Physical Review B 85 (11).
APA
Abass, A., Quang Le, K., Alù, A., Burgelman, M., & Maes, B. (2012). Dual-interface gratings for broadband absorption enhancement in thin-film solar cells. PHYSICAL REVIEW B, 85(11).
Vancouver
1.
Abass A, Quang Le K, Alù A, Burgelman M, Maes B. Dual-interface gratings for broadband absorption enhancement in thin-film solar cells. PHYSICAL REVIEW B. 2012;85(11).
MLA
Abass, Aimi et al. “Dual-interface Gratings for Broadband Absorption Enhancement in Thin-film Solar Cells.” PHYSICAL REVIEW B 85.11 (2012): n. pag. Print.
@article{2100756,
  abstract     = {We numerically study complex dual-interface grating systems to enhance absorption efficiency in thin-film silicon solar cells. We combine a plasmonic grating at the back side of the solar cell with a dielectric grating at the front side of the cell. We show a proof of principle, with one-dimensional gratings, that the distinctly different nature of the gratings can provide complementary enhancement mechanisms, which we further exploit by tailoring the specific periodicities, and by introducing blazing. Having different periods at specific interfaces allows for more efficient diffraction into both plasmonic and dielectric guided modes. In addition, grating specific blazing exposes extra modes to normal incident light through symmetry breaking. Multiple optimization routes are possible depending on the choice of photonic phenomena.},
  articleno    = {115449},
  author       = {Abass, Aimi and Quang Le, Khai and Alù, Andrea  and Burgelman, Marc and Maes, Björn},
  issn         = {1098-0121},
  journal      = {PHYSICAL REVIEW B},
  keywords     = {LIMIT,DESIGN,Plasmonics Solar cells Blazed grating structures waveguide modes},
  language     = {eng},
  number       = {11},
  title        = {Dual-interface gratings for broadband absorption enhancement in thin-film solar cells},
  url          = {http://dx.doi.org/10.1103/PhysRevB.85.115449},
  volume       = {85},
  year         = {2012},
}

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