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Featured researches published by Christoph Mader.


Applied Physics Letters | 2014

Solution-processed amorphous silicon surface passivation layers

Mathias Mews; Christoph Mader; Stephan Traut; Tobias Sontheimer; Odo Wunnicke; Lars Korte; Bernd Rech

Amorphous silicon thin films, fabricated by thermal conversion of neopentasilane, were used to passivate crystalline silicon surfaces. The conversion is investigated using X-ray and constant-final-state-yield photoelectron spectroscopy, and minority charge carrier lifetime spectroscopy. Liquid processed amorphous silicon exhibits high Urbach energies from 90 to 120 meV and 200 meV lower optical band gaps than material prepared by plasma enhanced chemical vapor deposition. Applying a hydrogen plasma treatment, a minority charge carrier lifetime of 1.37 ms at an injection level of 1015/cm3 enabling an implied open circuit voltage of 724 mV was achieved, demonstrating excellent silicon surface passivation.


Advanced Materials Interfaces | 2014

Solution‐Processed Crystalline Silicon Thin‐Film Solar Cells

Tobias Sontheimer; Daniel Amkreutz; Katharina Schulz; Paul H. Wöbkenberg; Christian Guenther; Vadym Bakumov; Joachim Erz; Christoph Mader; Stephan Traut; Florian Ruske; Moshe Weizman; Alexander Schnegg; Matthias Patz; Martin Trocha; Odo Wunnicke; Bernd Rech


Archive | 2014

Verfahren zur herstellung strukturierter beschichtungen, mit dem verfahren hergestellte strukturierte beschichtungen und ihre verwendung

Christoph Mader; Paul H. Wöbkenberg; Joachim Erz; Stephan Traut; Matthias Patz; Michael Cölle; Stephan Wieber; Patrik Stenner; Janette Klatt; Odo Wunnicke


Archive | 2014

METHOD FOR PRODUCING STRUCTURED COATINGS, STRUCTURED COATINGS PRODUCED ACCORDING TO SAID METHOD AND USE THEREOF

Christoph Mader; Paul Henrich Woebkenberg; Joachim Erz; Stephan Traut; Matthias Patz; Michael Coelle; Stephan Wieber; Patrik Stenner; Janette Klatt; Odo Wunnicke


Archive | 2010

Proceedings of the 2nd Workshop on Metallization for Crystalline Silicon Solar Cells : Status, trends and new directions

Matthias Hörteis; Jan Benick; Jan-Frederik Nekarda; Armin Richter; Ralf Preu; Stefan W. Glunz; Elias Urrejola; Kristian Peter; Joachim Glatz-Reichenbach; Eckhard Wefringhaus; Heiko Plagwitz; Gunnar Schubert; F. S. Grasso; Luca Gautero; Jochen Rentsch; R. Lanzafame; A. Ebong; I. B. Cooper; B. Rounsaville; K. Tate; A. Upadhyaya; A. Rohatgi; Martin Hermle; Jonas Bartsch; A. Mondon; Christian Schetter; C. Boulord; A. Kaminski; Y. Veschetti; D. Blanc-Pélissier


Solar Energy Materials and Solar Cells | 2017

Printable liquid silicon for local doping of solar cells

Felix Haase; Bianca Lim; Agnes Merkle; Thorsten Dullweber; Rolf Brendel; Christian Günther; Michael H. Holthausen; Christoph Mader; Odo Wunnicke; Robby Peibst


Archive | 2016

Verfahren zur Erzeugung von dotierten, polykristallinen Halbleiterschichten

Christoph Mader; Odo Wunnicke; Susanne Martens; Jasmin Lehmkuhl; Christian Günther


Archive | 2015

Process for producing differently doped semiconductors

Christoph Mader; Christian Günther; Joachim Erz; Susanne Martens; Jasmin Lehmkuhl; Stephan Traut; Odo Wunnicke


Archive | 2014

Procédé de production de revêtements structurés, revêtements structurés réalisés selon ce procédé et leur utilisation

Christoph Mader; Paul H. Wöbkenberg; Joachim Erz; Stephan Traut; Matthias Patz; Michael Cölle; Stephan Wieber; Patrik Stenner; Janette Klatt; Odo Wunnicke


Archive | 2014

A process for the production of doped, polycrystalline semiconductor layers

Christoph Mader; Odo Wunnicke; Susanne Martens; Jasmin Lehmkuhl; Christian Günther

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Bernd Rech

Helmholtz-Zentrum Berlin

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