K
K. Ramspeck
Researcher at Carl Zeiss AG
Publications - 32
Citations - 1185
K. Ramspeck is an academic researcher from Carl Zeiss AG. The author has contributed to research in topics: Carrier lifetime & Solar cell. The author has an hindex of 15, co-authored 29 publications receiving 1104 citations.
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Journal ArticleDOI
Series resistance imaging of solar cells by voltage dependent electroluminescence
TL;DR: In this article, a method based on electroluminescence imaging was proposed to determine mappings of the local series resistance of large area semiconductor devices such as solar cells.
Journal ArticleDOI
Recombination current and series resistance imaging of solar cells by combined luminescence and lock-in thermography
TL;DR: In this article, the authors performed recombination current and series resistance imaging on large-area crystalline silicon solar cells using a combined analysis of camera-based dark lockin thermography (DLIT) and electroluminescence (EL) imaging.
Journal ArticleDOI
Explanation of commonly observed shunt currents in c-Si solar cells by means of recombination statistics beyond the Shockley-Read-Hall approximation
S. Steingrube,Otwin Breitenstein,K. Ramspeck,Stefan W. Glunz,Andreas Schenk,Pietro P. Altermatt +5 more
TL;DR: In this article, the authors use a variant of coupled defect level (CDL) recombination, the donor-acceptor-pair (DAP) recombinations, but via deep levels (as opposed to shallow levels).
Journal ArticleDOI
Industrial high performance crystalline silicon solar cells and modules based on rear surface passivation technology
Axel Metz,Dennis Adler,Stefan Bagus,Henry Blanke,Michael Bothar,Eva Brouwer,Stefan Dauwe,Katharina Dressler,Raimund Droessler,Tobias Droste,Markus Fiedler,Yvonne Gassenbauer,Thorsten Grahl,Norman Hermert,Wojtek Kuzminski,Agata Lachowicz,Thomas Lauinger,Norbert Lenck,Mihail Manole,Marcel Martini,Rudi Messmer,C.E. Meyer,Jens Moschner,K. Ramspeck,Peter Roth,Ruben Schönfelder,Berthold Schum,Jörg Sticksel,Knut Vaas,Michael Volk,Klaus Wangemann +30 more
TL;DR: In this article, a short review is given about the evolution of dielectric rear side passivation technologies as well as on state-of-the-art cell and module results.