NDLI: Optical modelling of the front surface for honeycomb-textured silicon solar cells

Content Provider	IEEE Xplore Digital Library
Author	Volk, A.-K. Glover, W. Greulich, J. Gutscher, S. Wolke, W. Zimmer, M. Rentsch, J. Reinecke, H.
Copyright Year	2014
Description	Author affiliation: Dept. of Microsyst. Eng. - IMTEK, Univ. of Freiburg, Freiburg, Germany (Reinecke, H.) \|\| Fraunhofer Inst. for Solar Energy Syst. ISE, Freiburg, Germany (Volk, A.-K.; Glover, W.; Greulich, J.; Gutscher, S.; Wolke, W.; Zimmer, M.; Rentsch, J.)
Abstract	In this study we assess the reproducibility of the honeycomb texturing process, and we compare experimental values to a simulation. Our results show that the honeycomb-texture can be simulated with the OPAL program. It calculates the losses of any angle of incidence, where the short computation time is achieved by decoupling the ray tracing from the Fresnel equation. We investigate various surface morphologies and their impact on reflection values. The samples were etched at different etching times, whereby the honeycomb geometries were changed. Using our optimal acid etching solution ratio, we are able to fabricate a HC-texture with a reflectivity of R = 19.4 % (ω = 85°). Between the simulation values and those of the measurement, we see a difference of R = 0.3 $%_{abs}.$ This small deviation causes the relatively inaccuracies of the simulation and the measured samples. The focus is to simulate the different honeycomb structures and compare the values with the experimental values.
Starting Page	1260
Ending Page	1264
File Size	1012051
Page Count	5
File Format	PDF
e-ISBN	9781479943982
DOI	10.1109/PVSC.2014.6925144
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-06-08
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Reflection Surface morphology Optical surface waves Wavelength measurement Etching Reflectivity honeycomb textured modeling optical losses
Content Type	Text
Resource Type	Article

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