S
Stefan Paetel
Publications - 43
Citations - 2981
Stefan Paetel is an academic researcher. The author has contributed to research in topics: Copper indium gallium selenide solar cells & Chemistry. The author has an hindex of 14, co-authored 30 publications receiving 2678 citations.
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Journal ArticleDOI
New world record efficiency for Cu(In,Ga)Se2 thin‐film solar cells beyond 20%
Philip Jackson,Dimitrios Hariskos,Erwin Lotter,Stefan Paetel,Roland Wuerz,Richard Menner,Wiltraud Wischmann,Michael Powalla +7 more
TL;DR: In this article, the authors presented a new certified world record efficiency of 20.1 and 20.3% for thin-film solar cells for the first time and analyzed the characteristics of solar cells on such a performance level and demonstrate a high degree of reproducibility.
Journal ArticleDOI
Thin‐film solar cells exceeding 22% solar cell efficiency: An overview on CdTe-, Cu(In,Ga)Se2-, and perovskite-based materials
Michael Powalla,Stefan Paetel,Erik Ahlswede,Roland Wuerz,Cordula D. Wessendorf,Theresa Magorian Friedlmeier +5 more
TL;DR: In this article, the authors outline similarities and differences between polycrystalline thin-film photovoltaic materials from both the materials and the industrial point of view and address the materials characteristics and device concepts for each technology, including a description of recent developments that have led to very high efficiency achievements.
Journal ArticleDOI
Gallium gradients in Cu(In,Ga)Se2 thin‐film solar cells
Wolfram Witte,Daniel Abou-Ras,Karsten Albe,Gottfried H. Bauer,Frank Bertram,Christian Boit,Rudolf Brüggemann,Jürgen Christen,Jens Dietrich,A. Eicke,Dimitrios Hariskos,Matthias Maiberg,Roland Mainz,Max Meessen,Mathias Müller,O. Neumann,Thomas Orgis,Stefan Paetel,Johan Pohl,H. Rodriguez-Alvarez,Roland Scheer,Hans-Werner Schock,Thomas Unold,A. Weber,Michael Powalla +24 more
TL;DR: In this article, the formation, nature, and consequences of gallium gradients in CIGS solar cells were analyzed in real time during a rapid selenization process by in situ X-ray measurements.
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New reaction kinetics for a high‐rate chemical bath deposition of the Zn(S,O) buffer layer for Cu(In,Ga)Se2‐based solar cells
Dimitrios Hariskos,Richard Menner,Philip Jackson,Stefan Paetel,Wolfram Witte,Wiltraud Wischmann,Michael Powalla,Linda Bürkert,Torsten Kolb,Mike Oertel,Bernhard Dimmler,Bettina Fuchs +11 more
TL;DR: In this paper, a new chemical bath deposition kinetics for the zinc sulfide oxide Zn(S,O) buffer layer as used in CIGS-based solar cells is reported.
Journal ArticleDOI
High-efficiency Cu(In,Ga)Se2 cells and modules
Michael Powalla,Philip Jackson,Wolfram Witte,Dimitrios Hariskos,Stefan Paetel,Carsten Tschamber,Wiltraud Wischmann +6 more
TL;DR: In this article, the analytical description of high-efficiency Cu(In,Ga)Se 2 -based solar cells produced with a static co-evaporation process is presented, where classic quality markers such as grain morphology, composition, vertical compositional gradings, and grain orientation in these cells are discussed.