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Markus Kohlstädt

Researcher at University of Freiburg

Publications -  34
Citations -  504

Markus Kohlstädt is an academic researcher from University of Freiburg. The author has contributed to research in topics: Perovskite (structure) & Silicon. The author has an hindex of 11, co-authored 30 publications receiving 358 citations. Previous affiliations of Markus Kohlstädt include Centre national de la recherche scientifique & Fraunhofer Society.

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Characterization of perovskite solar cells: Towards a reliable measurement protocol

TL;DR: In this article, the authors compare device characteristics derived from standard current density-voltage measurements with stabilized values obtained from an adaptive tracking of the maximum power point and the open circuit voltage as well as characteristics extracted from time resolved current density voltage measurements, and propose a measurement protocol for a reliable characterisation which is easy to implement and has been tested on varying perovskite ÃÂÃÂsolar cells fabricated in different laboratories.
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Assembly of the Escherichia coli NADH:ubiquinone oxidoreductase (complex I).

TL;DR: It was shown that the mitochondrial complex is assembled from distinct intermediates, and the subunits and the cofactors of the soluble NADH dehydrogenase fragment of the complex were detected in the cytoplasm of some of the nuo-mutants.
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How Molecules with Dipole Moments Enhance the Selectivity of Electrodes in Organic Solar Cells - A Combined Experimental and Theoretical Approach

TL;DR: In this paper, a combination of currentvoltage curves, scanning Kelvin-probe atomic force microscopy, ultraviolet photoelectron spectroscopy, and electroluminescence measurements as well as numerical simulations are carried out to clarify in detail the underlying mechanisms.
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Electron-selective contacts via ultra-thin organic interface dipoles for silicon organic heterojunction solar cells

TL;DR: In this paper, the dipole effect plays an essential role in the modification of the interface and effective work function of the contact and the effect of an added fluorosurfactant on the resulting contact properties was examined.
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Ordering of PCDTBT revealed by time-resolved electron paramagnetic resonance spectroscopy of its triplet excitons.

TL;DR: Time-resolved electron paramagnetic resonance (TREPR) spectroscopy is shown to be a powerful tool to characterize triplet excitons of conjugated polymers, and the results are highly sensitive to the orientation of the molecule.