Conference paper
Black silicon solar cells with black bus-bar strings
Department of Micro- and Nanotechnology, Technical University of Denmark1
Silicon Microtechnology, Department of Micro- and Nanotechnology, Technical University of Denmark2
Institute for Product Development3
Department of Photonics Engineering, Technical University of Denmark4
Photovoltaic Materials and Systems, Department of Photonics Engineering, Technical University of Denmark5
Diode Lasers and LED Systems, Department of Photonics Engineering, Technical University of Denmark6
Gaiasolar ApS7
Institute for Energy Technology8
Surface Physics and Catalysis, Department of Physics, Technical University of Denmark9
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 mask- less reactive ion etching resulting in total, average reflectance below 0.5% across a 156×156 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 all-black 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.
| Language: | English |
|---|---|
| Publisher: | IEEE |
| Year: | 2017 |
| Pages: | 2885-2888 |
| Proceedings: | 2016 IEEE 43rd Photovoltaic Specialists Conference |
| ISBN: | 1509027246 , 1509027254 , 9781509027248 and 9781509027255 |
| Types: | Conference paper |
| DOI: | 10.1109/PVSC.2017.8366677 |
| ORCIDs: | Davidsen, Rasmus Schmidt , Thorsteinsson, Sune , Poulsen, Peter Behrensdorff and Hansen, Ole |
9-cell panels Coatings Copper Photovoltaic cells Reflectivity Si Silicon Surface treatment Surface waves all-black solar panels black bus-bar strings black silicon solar cells black texturing building integrated photovoltaics busbars elemental semiconductors etched solder front-contacted solar cells oxidized copper silicon solar cell arrays
