News Column

Studies from Helmholtz-Zentrum Provide New Data on Silicon

May 30, 2014

By a News Reporter-Staff News Editor at Energy Weekly News -- Investigators discuss new findings in Silicon. According to news reporting out of Berlin, Germany, by VerticalNews editors, research stated, "Industry has previously established a 10% stable total module efficiency 1.1 x 1.3 m(2) thin film silicon tandem junction (TJ) module manufacturing baseline. A similar silicon TJ cell manufacturing process has been established, using a plasma enhanced chemical vapor deposition (PECVD) tool with an excitation frequency of 13.56 MHz, which was modified to handle 30 x 30 cm(2) substrates."

Our news journalists obtained a quote from the research from Helmholtz-Zentrum, "Extensive PECVD process window characterization was undertaken for the silicon layers that have the biggest impact on device performance. Single layer silicon on glass data and 1 x 1 cm2 single junction and TJ solar cell data for amorphous intrinsic silicon and microcrystalline intrinsic silicon layers have been collected. Single layer characterization data for p-doped micro-crystalline silicon oxide layer (mu c-SiOx:H-p) for aluminum doped zinc oxide substrates is being presented, as well as solar cell data. The manufacturability of the mu c-SiOx:H-p process is being considered."

According to the news editors, the research concluded: "Finally, we present the best solar cell results obtained with the optimized PECVD process, as well as baseline performance data."

For more information on this research see: Plasma enhanced chemical vapor deposition process optimization for thin film silicon tandem junction solar cells. Thin Solid Films, 2014;558():337-343. Thin Solid Films can be contacted at: Elsevier Science Sa, PO Box 564, 1001 Lausanne, Switzerland. (Elsevier -; Thin Solid Films -

Our news journalists report that additional information may be obtained by contacting M. Rohde, PVcomB, Helmholtz Zentrum Berlin Mat & Energie, D-12489 Berlin, Germany. Additional authors for this research include M. Zelt, O. Gabriel, S. Neubert, S. Kirner, D. Severin, T. Stolley, B. Rau, B. Stannowski and R. Schlatmann.

Keywords for this news article include: Berlin, Europe, Energy, Germany, Silicon, Solar Cell, Nanotechnology, Emerging Technologies, Chemical Vapor Deposition

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Source: Energy Weekly News

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