138
S. Leu and D. Sontag
12. B. Fischer, Loss analysis of crystalline silicon solar cells using photoconductance and quantum
efficiency measurements, Ph.D. thesis at University Konstanz, Konstanz, 2003
13. J. Benick; TOPCon – „Überwindung der fundamentalen Hindernisse für eine neue WeltrekordSiliciumsolarzelle“, Fraunhofer Institut für solare Energiesysteme ISE, Oktober,2013 https://
www.ise.fraunhofer.de/de/forschungsprojekte/topcon.html
14. F. Feldmann, M. Bivour, C. Reichel, M. Hermle; S.W. Glunz, A passivated rear contact for
high-efficiency n-type silicon solar cells enabling high Voc and FF > 82%, in 28th European
Photovoltaic Solare Energy Conference and Exhibition, 30 Sept. 2013
15. K. Yoshikawa, H. Kawasaki, W. Yoshida, T. Irie, K. Konishi, K. Nakano, T. Uto, D. Adachi,
M. Kanematsu, H. Uzu, K. Yamamoto, Silicon heterojunction sola cell with interdigitated back
contacts for a photoconversion efficiency over 26%, nature energy, published 20 March 2017,
volume 2, article number: 17032
16. C. Klamt, M. Rienäcker, F. Haase, N. Folchert, R. Brendel, R. Peibst, V. Krausse, and J.
Krügener, Intrinsic poly-crystalline silicon region in between the p + and n + POLO contacts of an
26.1%-efficient IBC solar cell, Brussels, Belgium, 26.09.2018, in 35th European Photovoltaic
Solar Energy Conference and Exhibition, Brussels, 2018
Sylvère Leu was from 2008 to 2017 with the Meyer Burger
Group, where he became a member of the executive board, as
Chief Innovation Officer and Technology Officer (CIO/CTO).
Since his retirement in 2017, he is active as technology consultant, for the Meyer Burger Group. Sylvère graduated from
the Swiss Federal Institute of Technology in Zürich (ETHZ). He
additionally obtained a Master’s Degree in Business Administration at the University of St. Gallen (HSG). As a Swiss pioneer, Sylvère Leu started to work in photovoltaics 30 years ago.
He constructed an industrially relevant laminator and sun simulator in his own company. Beside his job he worked as an
associate lecturer at University of St. Gallen (HSG), for several
years, in the field of industrial production. At the end of 2005
he was charged with building up an integrated 250 MWp photovoltaic facility, including wafer, cell and module manufacturing,
in Germany.
Detlef Sontag is Senior Technologist for Solar Cells at Meyer
Burger (Germany) GmbH. since 2015—one of the world’s leading PV equipment manufacturing companies. He graduated as a
physicist at the University of Konstanz in 2000, and obtained his
Ph.D. degree in 2004 working on novel wafer materials for Photovoltaics. In 2004 he joined Deutsche Cell GmbH, a subsidiary
of Solar World AG, as quality assurance engineer with insights
in the industrial crystalline silicon PV manufacturing processes
along the whole value chain from block casting via cell processing to module assembling. Detlef Sontag joined the equipment manufacturer Roth & Rau AG as Senior Principal for cell
technology in 2009. There he supported the planning and commissioning of the Technology centre and worked actively on the
development of cell technologies like PERC and HJT including
project coordination of corresponding R&D-projects.
S. Leu and D. Sontag
12. B. Fischer, Loss analysis of crystalline silicon solar cells using photoconductance and quantum
efficiency measurements, Ph.D. thesis at University Konstanz, Konstanz, 2003
13. J. Benick; TOPCon – „Überwindung der fundamentalen Hindernisse für eine neue WeltrekordSiliciumsolarzelle“, Fraunhofer Institut für solare Energiesysteme ISE, Oktober,2013 https://
www.ise.fraunhofer.de/de/forschungsprojekte/topcon.html
14. F. Feldmann, M. Bivour, C. Reichel, M. Hermle; S.W. Glunz, A passivated rear contact for
high-efficiency n-type silicon solar cells enabling high Voc and FF > 82%, in 28th European
Photovoltaic Solare Energy Conference and Exhibition, 30 Sept. 2013
15. K. Yoshikawa, H. Kawasaki, W. Yoshida, T. Irie, K. Konishi, K. Nakano, T. Uto, D. Adachi,
M. Kanematsu, H. Uzu, K. Yamamoto, Silicon heterojunction sola cell with interdigitated back
contacts for a photoconversion efficiency over 26%, nature energy, published 20 March 2017,
volume 2, article number: 17032
16. C. Klamt, M. Rienäcker, F. Haase, N. Folchert, R. Brendel, R. Peibst, V. Krausse, and J.
Krügener, Intrinsic poly-crystalline silicon region in between the p + and n + POLO contacts of an
26.1%-efficient IBC solar cell, Brussels, Belgium, 26.09.2018, in 35th European Photovoltaic
Solar Energy Conference and Exhibition, Brussels, 2018
Sylvère Leu was from 2008 to 2017 with the Meyer Burger
Group, where he became a member of the executive board, as
Chief Innovation Officer and Technology Officer (CIO/CTO).
Since his retirement in 2017, he is active as technology consultant, for the Meyer Burger Group. Sylvère graduated from
the Swiss Federal Institute of Technology in Zürich (ETHZ). He
additionally obtained a Master’s Degree in Business Administration at the University of St. Gallen (HSG). As a Swiss pioneer, Sylvère Leu started to work in photovoltaics 30 years ago.
He constructed an industrially relevant laminator and sun simulator in his own company. Beside his job he worked as an
associate lecturer at University of St. Gallen (HSG), for several
years, in the field of industrial production. At the end of 2005
he was charged with building up an integrated 250 MWp photovoltaic facility, including wafer, cell and module manufacturing,
in Germany.
Detlef Sontag is Senior Technologist for Solar Cells at Meyer
Burger (Germany) GmbH. since 2015—one of the world’s leading PV equipment manufacturing companies. He graduated as a
physicist at the University of Konstanz in 2000, and obtained his
Ph.D. degree in 2004 working on novel wafer materials for Photovoltaics. In 2004 he joined Deutsche Cell GmbH, a subsidiary
of Solar World AG, as quality assurance engineer with insights
in the industrial crystalline silicon PV manufacturing processes
along the whole value chain from block casting via cell processing to module assembling. Detlef Sontag joined the equipment manufacturer Roth & Rau AG as Senior Principal for cell
technology in 2009. There he supported the planning and commissioning of the Technology centre and worked actively on the
development of cell technologies like PERC and HJT including
project coordination of corresponding R&D-projects.