Freiberger Siliziumtage / Freiberg Silicon Days

Freiberger Siliziumtage / Freiberg Silicon Days
part of the 66. Freiberg Research Forum BHT 2015
June 18-19, 2015, Freiberg
see http://tu-freiberg.de/researchforum for full program
Die Freiberger Siliziumtage finden im zweijährigen Rhythmus im Rahmen des Freiberger Forschungsforums
(Berg- und Hüttenmännische Tage - BHT) statt. Seit Beginn der Tagungsreihe vor zwei Jahrzehnten stehen
neueste Entwicklungen in der Photovoltaik, Photonik, Mikroelektronik und der chemisch-physikalischen
Silizium-Prozessierung im Fokus der zweitägigen Vortragsveranstaltungen.
Die Freiberger Siliziumtage 2015 im Rahmen des 66. BHT konzentrieren sich auf Degradationseigenschaften
der Si-Solarzellen, integrierte Si-Photonik sowie Prozesse zur Siliziumabscheidung und -reinigung. Erstmalig
wird es auch eine Sitzung zum Themenbereich Silizium-Elektroden für die Batterietechnik geben.
Teil der Freiberger Siliziumtage ist das Freiberger Sägesymposium in dem aktuelle Trends im Bereich des
Waferings, der Prozesstechnologie, der Wafercharakterisierung und des Recyclings behandelt werden.
The Freiberg Silicon Days take place every second year within Freiberg Research Forum (Berg- und
Hüttenmännische Tage – BHT). Since the start of the conference series two decades ago recent
developments in photovoltaics, photonics, microelectronics and chemical-physical silicon processing are in
the focus of the two-day conferences.
As part of the 66. BHT, the Freiberg Silicon Days 2015 are dedicated to degradation properties of Si solar
cells within the area of photovoltaics, to integrated Si photonics as well as to Si deposition and purification.
For the first time, also a colloquium on Si electrodes for battery technology is announced.
The Freiberg Sawing Symposium is a part of the Freiberg Silicon Days where current trends in the areas of
wafering, process technology, wafer characterization and recycling will be discussed.
Event Location: TU Bergakademie Freiberg, Winkler building, Leipziger Str. 29, D-09599 Freiberg, Germany
Contact Person:
Dr. Jan Beyer
Tel. +49 3731 39 2162
[email protected]
Freiberg Silicon Days 2015 (TU Bergakademie Freiberg Research Forum, 66. BHT) | June 18-19, 2015 | http://tu-freiberg.de/researchforum
Program Silicon Chemistry, Photovoltaics and Photonics
June 18, 2015
Si Photovoltaics

09:00 Introduction
J. Heitmann / E. Kroke (TU Bergakademie Freiberg)

09:05 Technologietrends in der Silicium Photovoltaik
Dr. Dirk-Holger Neuhaus (SolarWorld Innovations GmbH)

9:25 tbd
Dr. Jörg Müller (QCells GmbH)

9:45 Aspects of the Potential Induced Degradation (PID) of Silicon Solar Modules
Dr. Thomas Kaden (THM Freiberg)

10:00 A new Degradation effect of mc-Si Solar Cells
Friederike Kersten (Hanwha QCells, TU Bergakademie Freiberg)

10:15 2D Characterization of Silicon Surface Passivation Layers
Paul Jordan (NaMLab gGmbH Dresden)
10:30 Coffee Break
Si Deposition

11:00 Monosilan: Eigenschaften und CVD-Abscheidung
Dr. U. Kerat / Dr. G. Fester (SiTec GmbH, Burghausen)

11:20 Key triggers in further development of silicon production
Dr. Friedrich Schaaff (Silicon Products Bitterfeld GmbH & Co.KG)

11:40 Solution processing of silicon thin films from nanoparticles and molecular precursors
Prof. Dr. Lothar Frey / Dr. Michael Jank (Fraunhofer IISB, Erlangen-Nürnberg)

12:00 The electrochemistry of SiX4 and GeX4 in ionic liquids
Prof. Dr. Frank Endres (TU Clausthal)
12:20 Lunch Break
Freiberg Silicon Days 2015 (TU Bergakademie Freiberg Research Forum, 66. BHT) | June 18-19, 2015 | http://tu-freiberg.de/researchforum
Si Photonics

14:00 Towards Active Silicon Photonics – strain engineering and hybrid approaches
Prof. Dr. Joerg Schilling (ZIK „SiLi-nano“, MLU Halle-Wittenberg)

14:20 Luminescence- and Coupling-Effects of Silicon Quantum Dot Ensembles
Dr. Daniel Hiller (IMTEK, Universität Freiburg)

14:40 More with Less? - Silicon Nanowire Arrays for Enhanced Optical Absorption
Prof. Dr. Steffen Strehle (Universität Ulm)

15:00 Strong electroluminescence from Tb-doped metal-insulator-semiconductor structures
Dr. Lars Rebohle (Helmholtz-Zentrum Dresden-Rossendorf)

15:15 Erbium-doped slot waveguides containing size-controlled Silicon nanocrystals
Dr. Jan Beyer (TU BA Freiberg)
15:30 Coffee Break
Si Crystallization

16:00 Role of melt flow and mass transport in industrial photovoltaics
Paul Bönisch, L. Sylla, T. Richter, SolarWorld Innovations GmbH, Freiberg

16:20 Understanding the performance of fine grained vs. conventional mc-Si, based on grain size, orientation and - boundary type distribution
Toni Lehmann, Fraunhofer THM Freiberg

16:35 Cost effective Czochralski crystal production for PV application
Eivind Johannes Øvrelid, Sintef, Trondheim, Norway

16:55 Microdefect formation in heavily doped silicon crystals
Maria Porrini, Sun Edison, Merano, Italy

17:15 Formation of dislocations in heavily doped silicon crystals
Ludwig Stockmeier, Fraunhofer THM, Freiberg
Freiberg Silicon Days 2015 (TU Bergakademie Freiberg Research Forum, 66. BHT) | June 18-19, 2015 | http://tu-freiberg.de/researchforum
June 19, 2015
Wet Etching and Cleaning of Si (together with Freiberg Sawing Symposium)

09:00 Einfluss von Medienströmung und Gasgehalt auf die Megaschall-Reinigung von Silizium
Wafern
Dr. Gregor Reeske (Siltronic AG)

09:15 Kostengünstige Organik Inline Reinigung für alle Si-Wafer Sägeverfahren
Ilker Sen (Gebr. SCHMID GmbH)

09:30 Pyramidal texturing of monocrystalline Si-wafers with acidic solutions
Andre Stapf (TUBAF, Freiberg)

09:45 Wafer sawing as the first step for a successful texturization.
Prof. Dr. Jörg Acker (FH Lausitz / BTU Cottbus)

10:00 Cold split - A new technology for kerf-less wafering of Silicon
Dr. Christian Beyer (Siltectra GmbH, Dresden)

10:15 Aktuelle Si-Themen aus Sicht eines Anlagenbauers für naßchemische PV-Prozesse
Dr. Juergen Schweckendiek (RENA Technologies GmbH, Berg)
10:30 Coffee Break
Si Electrodes

11:00 Synthesis of Silicon Nanowires Using Neopentasilane
Prof. Dr. Andreas Terfort (Universität Frankfurt)

11:20 Silicon Nanowire Anodes for Optimized Cycling Stability in Future Li-S Batteries, Dr. Andreas
Krause (NaMLab gGmbH, Dresden)

11:40 Si/C nanocomposites through economical chemistry as advanced anode in Li-ion and Li-S
batteries, Tony Jaumann (IFW Dresden)

12:00 Thermodynamic characterisation of lithium silicides
Prof. Dr. Florian Mertens (TUBAF, Freiberg)
12:20 final remarks, end of Symposium
Freiberg Silicon Days 2015 (TU Bergakademie Freiberg Research Forum, 66. BHT) | June 18-19, 2015 | http://tu-freiberg.de/researchforum
Program Freiberg Sawing Symposium (FSS 2015)
June 18, 2015
New developments in wire sawing of solar silicon

08:30 Industrial sawing of multicrystalline silicon,
Naumann, O. (SolarWorld AG, Freiberg, Germany)

09:00 Diamond wire sawing of monocrystalline silicon,
Retsch, S., Bye, J.-I. (NorSun, Oslo, Norway)

09:30 Industrial sawing with structured wires,
Sunder, K., Anspach, O. (asked, PV Crystalox Solar, Erfurt, Germany)

10:00 A macroscopic model of the sawing of silicon by a diamond electroplated wire,
Ly, M. (Thermocompact, Pringy, France)
10:30 Coffee break

11:00 Surface finish and mechanical strength of diamond wire sawn wafers,
Penot J. D., Rousseau S., Faujour A., Lignier H. (CEA-INES, Le Bourget-du-Lac, France)

11:30 Impurities impact on diamond wire sawing,
Grillet N., Rousseau S., Coustier F., Penot J. D. (CEA-INES, Le Bourget-du-Lac, France)

12:00 Extending the slurry based process window for PV wafer slicing,
Schmid, A. et al. (asked, Applied Materials HCT, Cheseaux, Switzerland)
12:30 Lunch break
Wafer characterization, fundamentals, modeling and other materials

14:00 Sawing and characterizing hard and brittle materials, from the concept to the competitive
solution
Assi, F. (Meyer Burger, Thun, Switzerland)

14:30 Investigation of wafer saw damage,
Wasmer, K. (EMPA, Thun, Switzerland)

15:00 Mechanical properties of solar silicon wafers
Schönfelder, S. (FhG CSP, Halle, Germany)
15:30 Coffee break
Freiberg Silicon Days 2015 (TU Bergakademie Freiberg Research Forum, 66. BHT) | June 18-19, 2015 | http://tu-freiberg.de/researchforum

16:00 Impact of sawing parameters on the wafer surface quality,
Falke, A. , Buchwald, R. (FhG THM, Freiberg, Germany)

16:30 Investigation of the scratching mechanism,
Würzner, S. (FhG THM, Freiberg, Germany)

17:00 SIREX – A new method to investigate surface damage of sawn wafers,
Herms, M. (PVA Tepla, Jena, Germany)

17:30 3D Simulation of SiC transport in wire sawing,
Liedke, Th. (TUBAF, Freiberg, Germany)
June 19, 2015
Wet chemical etching and cleaning of silicon (together with Freiberg Silicon Days)

09:00 – 10:30 see program Freiberg Silicon Days
10:30 Coffee break
Recycling of silicon from wafering fluids and new usage

11:00 Silicon recovery from wafer sawing process: challenges, solutions, and outlook,
Yun Luo (PlusMat AG, Schüpfen, Switzerland)

11:30 Recycling of silicon kerf loss,
Fillon, B. (CEA-INES, Bourget-du-Lac, France)

12:00 Modern slurry recycling processes and cost reduction,
Mayer-Uhma, T. (SiC processing, Bautzen, Germany)

12:30 Applications of hot pressed silicon powders ingots,
Ulyashin, A. (Sintef, Oslo, Norway)
13:00 Final remarks, end of Symposium
Freiberg Silicon Days 2015 (TU Bergakademie Freiberg Research Forum, 66. BHT) | June 18-19, 2015 | http://tu-freiberg.de/researchforum

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