Zobrazeno 1 - 10
of 54
pro vyhledávání: '"Stephan Fahr"'
Autor:
Christoph Etrich, Stephan Fahr, Mehdi Keshavarz Hedayati, Franz Faupel, Mady Elbahri, Carsten Rockstuhl
Publikováno v:
Materials, Vol 7, Iss 2, Pp 727-741 (2014)
Plasmonic nanocomposites find many applications, such as nanometric coatings in emerging fields, such as optotronics, photovoltaics or integrated optics. To make use of their ability to affect light propagation in an unprecedented manner, plasmonic n
Externí odkaz:
https://doaj.org/article/0315ec936bac40b49b9c22948b8c0054
Publikováno v:
SSRN Electronic Journal.
This paper contributes by providing a new approach to study optimal macroprudential policies based on economy wide welfare. Following Gerba (2017), we pin down a welfare function based on a first-and second order approximation of the aggregate utilit
Publikováno v:
International Optical Design Conference 2017.
In this work, we show how to predict the polarization-performance of high-numerical aperture optical systems. Various important influences, such as coating-induced phase change, stress induced birefringence, or the quality of the raw material are inv
Publikováno v:
Economic Policy. 28:243-288
We evaluate the ECB’s monetary policy strategy against the underlying economic structure of the euro area economy, in normal times and in times of severe financial dislocations. We show that in the years preceding the financial crisis that started
Autor:
Frank Smets, Stephan Fahr
Publikováno v:
Scandinavian Journal of Economics. 112:812-840
This paper analyses the implications of heterogeneity in the type of downward wage rigidity (nominal or real) for optimal monetary policy in a monetary union with asymmetric wage adjustment costs. Indexation in one region of the union reduces optimal
Publikováno v:
Photonics and Nanostructures - Fundamentals and Applications. 8:291-296
Thin film tandem solar cells made of amorphous and microcrystalline silicon provide renewable energy at the benefit of low material consumption. As a drawback, these materials do not posses the high carrier mobilities of their crystalline counterpart
Autor:
Christian Helgert, Thomas Pertsch, Carsten Rockstuhl, Matthias Kroll, Falk Lederer, Stephan Fahr
Publikováno v:
physica status solidi (a). 205:2777-2795
We study numerically in detail optical effects occurring during the interaction of light with dielectric gratings and explain how they can be exploited to enhance light absorption in thin-film solar cells. We analyze in depth two scenarios with pract
Autor:
Falk Lederer, Gerhard Seifert, Stefan Wackerow, Carsten Rockstuhl, Gero von Plessen, Florian Hallermann, Heinrich Graener, Stephan Fahr
Publikováno v:
physica status solidi (a). 205:2844-2861
We describe some fundamental properties of localized plasmon polaritons in metallic nanoparticles, and discuss their use for enhancing solar cells efficiency by photon management. Two scenarios are detailed. The first is an example of spectral photon
Autor:
Carolin Ulbrich, Ralf B. Wehrspohn, Stephan Fahr, Andreas Gombert, Carsten Rockstuhl, Uwe Rau, Falk Lederer, Thomas Kirchartz, Johannes Üpping, Marius Peters
Publikováno v:
physica status solidi (a). 205:2831-2843
Directional and energy selective optical surface structures attached to solar cells may result in both, enhancement or deterioration of photovoltaic performance of a solar cell. On the one hand, restricting the cell acceptance to the small incidence
Publikováno v:
physica status solidi (a). 205:2766-2776
Light trapping in thin-film silicon solar cell arising from randomly textured ZnO front contact layers is investigated in the optical near-field experimentally and theoretically. The experimental data are obtained from near-field scanning optical mic