In the original manuscript, the maximum short-circuit current in Fig. 2 and the description of angular stability for polarization in Fig. 6 are found incorrect owing to negligence. The incorrect maximum integrated absorption also led to errors appeared in Fig. 3 and Fig. 4(d), in which the mistake value was used to plot. In this erratum, all of those mistakes have been corrected. Moreover, both higher Fourier expansion order and the resolution of frequency are adopted in the recalculation to make sure the updated results to be reliable. The updated data presented still support the main conclusions drawn in the previous manuscript.

© 2017 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

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  1. J. Hou, W. Hong, X. Li, C. Yang, and S. Chen, “Biomimetic spiral grating for stable and highly efficient absorption in crystalline silicon thin-film solar cells,” Opt. Express 25(20), A922–A931 (2017).

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Figures (4)

Fig. 1
Fig. 1 The short-circuit current density Jsc of the spiral grating cell as a function of p and d.
Fig. 2
Fig. 2 The short-circuit current density Jsc of the spiral grating solar cell as a function of the etching height with the whole silicon layer kept with a fixed value of 1 μm (a) and as a function of the grating height with the bottom un-etching silicon layer kept with a fixed thickness of 500 nm (b).
Fig. 3
Fig. 3 Comparison of the short-circuit currents Jsc generated by the optimized spiral grating cell and by the slab cell (gray bars), the Yablonvitch limit (blue line), and the single-pass absorption (black dotted line).
Fig. 4
Fig. 4 The short-circuit current densities Jsc as a function of the incident angles for the optimized spiral grating, under P (follow the X axis), S (follow the Y axis) and average polarized illuminations. The zero-degree angle refers to the normal incidence to the solar cell surface.