Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Sergej Levcenco"'
Autor:
Sergej Levcenco, José A. Márquez, Maximilian Krause, Olivier Donzel-Gargand, Daniel Abou-Ras, Marika Edoff, Thomas Unold
It is attractive to alloy Cu(In,Ga)Se2 solar-cell absorbers with Ag (ACIGSe), since they lead to similar device performances as the Ag-free absorber layers, while they can be synthesized at much lower deposition temperatures. However, a KF post-depos
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::741091f9eabe83f078a3cb9ad99b3b60
http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-469031
http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-469031
Autor:
Robert Lovrincic, Hannah Funk, Oana Cojocaru-Mirédin, Sebastián Caicedo-Dávila, Ayala V. Cohen, René Gunder, Christian Müller, Sergej Levcenco, Michael Sendner, Daniel Abou-Ras, Frederike Lehmann, Alexandra Franz, Leeor Kronik, Benedikt Haas, Christoph Koch
Publikováno v:
The Journal of Physical Chemistry C. 123:17666-17677
In recent years, inorganic cesium amp; 8722;lead amp; 8722;halide perovskites, CsPbX3 X I, Br, Cl , have attracted interest for optoelectronic applications such as highly efficient thin film light emitting diodes or wide gap absorber materials for ph
Publikováno v:
Journal of Alloys and Compounds. 779:870-878
During preparation of compound semiconductor thin films undesired secondary phases and inhomogeneities may occur. Therefore, process control and monitoring are important aspects towards thin film optimization. In this study, white light reflectometry
Autor:
Pietro Caprioglio, Dieter Neher, Martin Stolterfoht, Thomas Kirchartz, Christian M. Wolff, Jose Marquez-Prieto, Sergej Levcenco, Thomas Unold
Publikováno v:
Proceedings of the nanoGe Fall Meeting 2019.
Autor:
Frederike Lehmann, Susan Schorr, Daniel M. Többens, Sergej Levcenco, Andreas Taubert, Alexandra Franz, Thomas Unold
Publikováno v:
RSC advances. 9(20)
By using synchrotron X ray powder diffraction, the temperature dependent phase diagram of the hybrid perovskite tri halide compounds, methyl ammonium lead iodide MAPbI3, MA CH3NH3 and methyl ammonium lead bromide MAPbBr3 , as well as of their solid s
Autor:
Dieter Greiner, Thomas Unold, Michael Klupsch, Marc Daniel Heinemann, Rutger Schlatmann, Lars Korte, Charles J. Hages, Tim Kodalle, Sergej Levcenco, Christian A. Kaufmann
Publikováno v:
EPJ Photovoltaics, Vol 9, p 9 (2018)
Distinguishing among different electrical loss mechanisms − such as interface and bulk recombination − is a common problem in thin film solar cells. In this work, we report a J–V measurement technique using different illuminating spectra to dis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::63d4a6c030739e312e8ad39bbd1a6be7
http://www.helmholtz-berlin.de/pubbin/oai_publication?VT=1&ID=97392
http://www.helmholtz-berlin.de/pubbin/oai_publication?VT=1&ID=97392
Autor:
Jan H. Alsmeier, Caleb K. Miskin, Daniel Abou-Ras, Thomas Unold, Charles J. Hages, Rakesh Agrawal, Regan G. Wilks, Marcus Bär, Sergej Levcenco
Publikováno v:
Progress in Photovoltaics: Research and Applications. 23:376-384
Nanocrystal-based Cu2Zn(SnyGe1-y)(SxSe4-x) (CZTGeSSe) thin-film solar cell absorbers with tunable band gap have been prepared. Maximum solar-conversion total area efficiencies of up to 9.4% are achieved with a Ge content of 30 at.%. Improved performa