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Energy Express

Energy Express

  • Editor: Bernard Kippelen
  • Vol. 20, Iss. S4 — Jul. 2, 2012
  • pp: A465–A475

Design, fabrication and optical characterization of photonic crystal assisted thin film monocrystalline-silicon solar cells

Xianqin Meng, Valérie Depauw, Guillaume Gomard, Ounsi El Daif, Christos Trompoukis, Emmanuel Drouard, Cécile Jamois, Alain Fave, Frédéric Dross, Ivan Gordon, and Christian Seassal  »View Author Affiliations

Optics Express, Vol. 20, Issue S4, pp. A465-A475 (2012)

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In this paper, we present the integration of an absorbing photonic crystal within a monocrystalline silicon thin film photovoltaic stack fabricated without epitaxy. Finite difference time domain optical simulations are performed in order to design one- and two-dimensional photonic crystals to assist crystalline silicon solar cells. The simulations show that the 1D and 2D patterned solar cell stacks would have an increased integrated absorption in the crystalline silicon layer would increase of respectively 38% and 50%, when compared to a similar but unpatterned stack, in the whole wavelength range between 300 nm and 1100 nm. In order to fabricate such patterned stacks, we developed an effective set of processes based on laser holographic lithography, reactive ion etching and inductively coupled plasma etching. Optical measurements performed on the patterned stacks highlight the significant absorption increase achieved in the whole wavelength range of interest, as expected by simulation. Moreover, we show that with this design, the angle of incidence has almost no influence on the absorption for angles as high as around 60°.

© 2012 OSA

OCIS Codes
(040.5350) Detectors : Photovoltaic
(040.6040) Detectors : Silicon
(050.5298) Diffraction and gratings : Photonic crystals
(310.6845) Thin films : Thin film devices and applications

ToC Category:

Original Manuscript: March 29, 2012
Revised Manuscript: May 4, 2012
Manuscript Accepted: May 7, 2012
Published: May 11, 2012

Xianqin Meng, Valérie Depauw, Guillaume Gomard, Ounsi El Daif, Christos Trompoukis, Emmanuel Drouard, Cécile Jamois, Alain Fave, Frédéric Dross, Ivan Gordon, and Christian Seassal, "Design, fabrication and optical characterization of photonic crystal assisted thin film monocrystalline-silicon solar cells," Opt. Express 20, A465-A475 (2012)

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