Black silicon solar cells with black bus-bar strings

Rasmus Schmidt Davidsen, Peter Torben Tang, Io Mizushima, Sune Thorsteinsson, Peter Behrensdorff Poulsen, Jesper Frausig, Ørnulf Nordseth, Ole Hansen

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

We present the combination of black silicon texturing and blackened bus-bar strings as a potential method for obtaining all-black solar panels, while using conventional, front-contacted solar cells. Black silicon was realized by maskless reactive ion etching resulting in total, average reflectance below 0.5% across a 156x156 mm2 silicon wafer. Four different methods to obtain blackened bus-bar strings were compared with respect to reflectance, and two of these methods (i.e., oxidized copper and etched solder) were used to fabricate functional allblack solar 9-cell panels. The black bus-bars (e.g., by oxidized copper) have a reflectance below 3% in the entire visible wavelength range. The combination of black silicon cells and blackened bus-bars results in aesthetic, all-black panels based on conventional, front-contacted solar cells without compromising efficiency.
Original languageEnglish
Title of host publicationProceedings of 43rd IEEE Photovoltaic Specialists Conference
Number of pages4
PublisherIEEE
Publication date2016
Pages2885-2888
Article number7750183
Publication statusPublished - 2016
Event43rd IEEE Photovoltaic Specialists Conference - Portland, Oregon, United States
Duration: 5 Jun 201610 Jun 2016

Conference

Conference43rd IEEE Photovoltaic Specialists Conference
CountryUnited States
CityPortland, Oregon
Period05/06/201610/06/2016

Cite this

Davidsen, R. S., Tang, P. T., Mizushima, I., Thorsteinsson, S., Poulsen, P. B., Frausig, J., Nordseth, Ø., & Hansen, O. (2016). Black silicon solar cells with black bus-bar strings. In Proceedings of 43rd IEEE Photovoltaic Specialists Conference (pp. 2885-2888). [7750183] IEEE.