@article{SpiesFranzmann2011,
  author    = {Spies, Dennis and Franzmann, Simon T.},
  title     = {A two-dimensional approach to the political opportunity structure of extreme right parties in Western Europe},
  series = {West European politics},
  volume    = {34},
  journal   = {West European politics},
  number    = {5},
  publisher = {Routledge, Taylor \& Francis Group},
  address   = {Abingdon},
  issn      = {0140-2382},
  doi       = {10.1080/01402382.2011.591096},
  pages     = {1044 -- 1069},
  year      = {2011},
  abstract  = {Previous studies on the electoral fortunes of extreme right parties (ERPs) have pointed to the importance of variables of party competition for the success - or failure - of ERPs. These studies vary greatly when it comes to describing the political opportunity structure of the extreme right. Apart from their methodological differences, existing studies differ especially with regard to the assumed underlying dimension of party competition. This article tests the impact of three frequently discussed variables in the political opportunity structure of ERPs (mainstream party convergence, position of the established right and party system polarisation) on the vote share of ERPs in Western Europe. In addition to examining previous studies in this field, it focuses on the interplay between the economic and the cultural dimensions as part of the political opportunity structure. The authors show that a decrease in polarisation with regard to economic questions is accompanied by a growing salience of ERPs' core issues, leading in the end to an increase in ERPs' vote share.},
  language  = {en}
}
@article{HempelSavenjieStolterfohtetal.2022,
  author    = {Hempel, Hannes and Savenjie, Tom J. and Stolterfoht, Martin and Neu, Jens and Failla, Michele and Paingad, Vaisakh C. and Kužel, Petr and Heilweil, Edwin J. and Spies, Jacob A. and Schleuning, Markus and Zhao, Jiashang and Friedrich, Dennis and Schwarzburg, Klaus and Siebbeles, Laurens D. A. and D{\"o}rflinger, Patrick and Dyakonov, Vladimir and Katoh, Ryuzi and Hong, Min Ji and Labram, John G. and Monti, Maurizio and Butler-Caddle, Edward and Lloyd-Hughes, James and Taheri, Mohammad M. and Baxter, Jason B. and Magnanelli, Timothy J. and Luo, Simon and Cardon, Joseph M. and Ardo, Shane and Unold, Thomas},
  title     = {Predicting solar cell performance from terahertz and microwave spectroscopy},
  series = {Advanced energy materials},
  volume    = {12},
  journal   = {Advanced energy materials},
  number    = {13},
  publisher = {Wiley},
  address   = {Weinheim},
  issn      = {1614-6832},
  doi       = {10.1002/aenm.202102776},
  pages     = {16},
  year      = {2022},
  abstract  = {Mobilities and lifetimes of photogenerated charge carriers are core properties of photovoltaic materials and can both be characterized by contactless terahertz or microwave measurements. Here, the expertise from fifteen laboratories is combined to quantitatively model the current-voltage characteristics of a solar cell from such measurements. To this end, the impact of measurement conditions, alternate interpretations, and experimental inter-laboratory variations are discussed using a (Cs,FA,MA)Pb(I,Br)(3) halide perovskite thin-film as a case study. At 1 sun equivalent excitation, neither transport nor recombination is significantly affected by exciton formation or trapping. Terahertz, microwave, and photoluminescence transients for the neat material yield consistent effective lifetimes implying a resistance-free JV-curve with a potential power conversion efficiency of 24.6 \%. For grainsizes above approximate to 20 nm, intra-grain charge transport is characterized by terahertz sum mobilities of approximate to 32 cm(2) V-1 s(-1). Drift-diffusion simulations indicate that these intra-grain mobilities can slightly reduce the fill factor of perovskite solar cells to 0.82, in accordance with the best-realized devices in the literature. Beyond perovskites, this work can guide a highly predictive characterization of any emerging semiconductor for photovoltaic or photoelectrochemical energy conversion. A best practice for the interpretation of terahertz and microwave measurements on photovoltaic materials is presented.},
  language  = {en}
}