Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Eckard Wefringhaus"'
Publikováno v:
Photovoltaic Manufacturing
Autor:
Radovan Kopecek, Haifeng Chu, Andreas Halm, Wu Xiang, Eckard Wefringhaus, Dong Peng, Jikui Ma, Florian Buchholz, Jan Lossen, Valentin D. Mihailetchi, Liu Jianda, Joris Libal, Christoph Peter, Guo Yonggang, Qu Xiaoyong
Publikováno v:
2020 47th IEEE Photovoltaic Specialists Conference (PVSC).
The ZEBRA technology - since several years under development at ISC Konstanz - is a bifacial IBC solar cell concept based on a standard industrial low cost manufacturing process still without passivating contacts. In this work, we present results of
Publikováno v:
Energy Procedia. 124:649-656
This article addresses several issues and challenges that have been faced, when developing an industrially feasible n-type solar cell (n-PERT) process employing homogeneous gas-phase diffusions of front and back side. As a result of the presented dev
Publikováno v:
IEEE Journal of Photovoltaics. 6:1456-1465
For the optimization of alkaline texturing in industrial monocrystalline silicon solar cells, it is of paramount importance to understand the correlation between surface reflectance and surface morphology. In this study, the reflectance is related to
Publikováno v:
Energy Procedia. 92:600-608
Bifacial solar cells enable the absorption of light also by the cell's rear side, hence increasing the energy yield of a bifacial module, Y b compared to the energy yield of a monofacial module installed under the same conditions, Y m , by BG = ( Y b
Autor:
Corrado Comparotto, Frédéric Madon, Eckard Wefringhaus, Roland Einhaus, Guiseppe Galbiati, Julien Degoulange
Publikováno v:
Energy Procedia. 77:382-385
This paper summarizes results from bifacial glass/glass NICE modules, using n-type BiSoN solar cells with efficiencies in the 20.0% range. A first series of industrial size (Sixty 156x156mm2) modules, fabricated under non-ideal conditions, exhibit a
Autor:
Eckard Wefringhaus, Florian Buchholz
Publikováno v:
Solid State Phenomena. 219:305-311
In wafer-based silicon solar cell technology cleaning of silicon surfaces has so far been treated without much interest – the cheapest, simple solution, which means mostly rinsing with or dipping into diluted acids (HCl, HF), was the best. Whatever
Autor:
Florian Buchholz, Edwin Kroke, Florian Honeit, Marcus Lippold, Eckard Wefringhaus, Christoph Gondek
Publikováno v:
Solar Energy Materials and Solar Cells. 127:104-110
The reactivity of HF(40 wt%)–HNO3(100 wt%)–H2SO4(97 wt%) etching mixtures towards conventional SiC-slurry and diamond-wire sawn silicon wafers has been studied. Sulfuric acid-rich mixtures exhibit adequate etching rates (r
Autor:
Eckard Wefringhaus, Mirko Lohmann
Publikováno v:
Energy Procedia. 38:849-854
In this paper, alkaline textured surfaces are described by means of statistical methods to evaluate what can be behind the term homogeneity found in literature. The evaluation of pyramid homogeneity is described in respect of the pyramid tip position
Autor:
Pierre Eyben, Jan Lossen, Pablo Ferrada, Eckard Wefringhaus, Stefan Doering, Wilfried Vandervorst, R. Harney, Mathias Weiss, Thomas Hantschel, Thomas Mikolajick, S. Jakschick
Publikováno v:
IEEE Journal of Photovoltaics. 3:168-174
In order to confirm the existence of a height-selective emitter, we compared local doping profiles of such emitters with profiles of a standard homogeneous emitter. The concept of a height-selective emitter is based on the classical selective emitter