@article{ZhongCausaMooreetal.2020,
  author    = {Zhong, Yufei and Causa, Martina and Moore, Gareth John and Krauspe, Philipp and Xiao, Bo and G{\"u}nther, Florian and Kublitski, Jonas and BarOr, Eyal and Zhou, Erjun and Banerji, Natalie},
  title     = {Sub-picosecond charge-transfer at near-zero driving force in polymer:non-fullerene acceptor blends and bilayers},
  series = {Nature Communications},
  volume    = {11},
  journal   = {Nature Communications},
  number    = {1},
  publisher = {Nature Publishing Group UK},
  address   = {London},
  issn      = {2041-1723},
  doi       = {10.1038/s41467-020-14549-w},
  pages     = {1 -- 10},
  year      = {2020},
  abstract  = {Organic photovoltaics based on non-fullerene acceptors (NFAs) show record efficiency of 16 to 17\% and increased photovoltage owing to the low driving force for interfacial charge-transfer. However, the low driving force potentially slows down charge generation, leading to a tradeoff between voltage and current. Here, we disentangle the intrinsic charge-transfer rates from morphology-dependent exciton diffusion for a series of polymer:NFA systems. Moreover, we establish the influence of the interfacial energetics on the electron and hole transfer rates separately. We demonstrate that charge-transfer timescales remain at a few hundred femtoseconds even at near-zero driving force, which is consistent with the rates predicted by Marcus theory in the normal region, at moderate electronic coupling and at low re-organization energy. Thus, in the design of highly efficient devices, the energy offset at the donor:acceptor interface can be minimized without jeopardizing the charge-transfer rate and without concerns about a current-voltage tradeoff.},
  language  = {en}
}
@misc{ZhongCausaMooreetal.2020,
  author    = {Zhong, Yufei and Causa, Martina and Moore, Gareth John and Krauspe, Philipp and Xiao, Bo and G{\"u}nther, Florian and Kublitski, Jonas and BarOr, Eyal and Zhou, Erjun and Banerji, Natalie},
  title     = {Sub-picosecond charge-transfer at near-zero driving force in polymer:non-fullerene acceptor blends and bilayers},
  series = {Zweitver{\"o}ffentlichungen der Universit{\"a}t Potsdam : Mathematisch-Naturwissenschaftliche Reihe},
  journal   = {Zweitver{\"o}ffentlichungen der Universit{\"a}t Potsdam : Mathematisch-Naturwissenschaftliche Reihe},
  number    = {1},
  issn      = {1866-8372},
  doi       = {10.25932/publishup-51193},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-511936},
  pages     = {12},
  year      = {2020},
  abstract  = {Organic photovoltaics based on non-fullerene acceptors (NFAs) show record efficiency of 16 to 17\% and increased photovoltage owing to the low driving force for interfacial charge-transfer. However, the low driving force potentially slows down charge generation, leading to a tradeoff between voltage and current. Here, we disentangle the intrinsic charge-transfer rates from morphology-dependent exciton diffusion for a series of polymer:NFA systems. Moreover, we establish the influence of the interfacial energetics on the electron and hole transfer rates separately. We demonstrate that charge-transfer timescales remain at a few hundred femtoseconds even at near-zero driving force, which is consistent with the rates predicted by Marcus theory in the normal region, at moderate electronic coupling and at low re-organization energy. Thus, in the design of highly efficient devices, the energy offset at the donor:acceptor interface can be minimized without jeopardizing the charge-transfer rate and without concerns about a current-voltage tradeoff.},
  language  = {en}
}
@phdthesis{Thierbach2004,
  author    = {Thierbach, Ren{\´e}},
  title     = {Identifikation des mitochondrialen Proteins Frataxin als stoffwechselmodulierenden Tumorsuppressor},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-0001943},
  school      = {Universit{\"a}t Potsdam},
  year      = {2004},
  abstract  = {Die Krebsentstehung wurde vor rund 80 Jahren auf ver{\"a}nderten zellul{\"a}ren Energiestoffwechsel zur{\"u}ckgef{\"u}hrt. Diese Hypothese konnte bisher weder experimentell bewiesen noch widerlegt werden. Durch den Einsatz zweier Modellsysteme mit unterschiedlicher Expression des mitochondrialen Proteins Frataxin konnte in der vorliegenden Arbeit gezeigt werden, dass der mitochondriale Energiestoffwechsel einen Einfluss auf die Tumorentstehung zu besitzen scheint. Eine Reduktion des mitochondrialen Energiestoffwechsels wurde durch die hepatozytenspezifische Ausschaltung des mitochondrialen Proteins Frataxin in M{\"a}usen erreicht. Der durch das Cre-/loxP-Rekombinasesystem erreichte organspezifische Knock-out wurde auf Transkriptions- und Translationsebene nachgewiesen. Anhand verminderter Aconitaseaktivit{\"a}t, geringeren Sauerstoffverbrauches und reduzierten ATP-Gehaltes im Lebergewebe wurde ein signifikant verminderter Energiestoffwechsel dargestellt. Zwar entsprach die Genotypenverteilung in den Versuchsgruppen der erwarteten Mendelschen Verteilung, dennoch war die mittlere Lebenserwartung der Knock-out-Tiere mit ca. 30 Wochen stark reduziert. Bereits in jungem Alter war bei diesen Tieren die Ausbildung von pr{\"a}neoplastischen Herden zu beobachten. Mit proteinbiochemischen Nachweistechniken konnte in Lebergewebe 4-8 Wochen alter Tiere eine verst{\"a}rkte Aktivierung des Apoptosesignalweges (Cytochrom C im Zytosol, verst{\"a}rkte Expression von Bax) sowie eine Modulation stressassoziierter Proteine (geringere Phosphorylierungsrate p38-MAPK, vermehrte Expression HSP-25, verminderte Expression HSP-70) aufgezeigt werden. Im inversen Ansatz wurde eine Steigerung des mitochondrialen Energiestoffwechsels durch stabile transgene Frataxin{\"u}berexpression in zwei Kolonkarzinomzelllinien erreicht. Diese Steigerung zeigte sich durch erh{\"o}hte Aconitaseaktivit{\"a}t, erh{\"o}hten Sauerstoffverbrauch, gesteigertes mitochondriales Membranpotenzial und erh{\"o}hten ATP-Gehalt in den Zellen. Die frataxin{\"u}berexprimierenden Zellen wuchsen signifikant langsamer als Kontrollzellen und zeigten im Soft-Agar-Assay und im Nacktmausmodell ein deutlich geringeres Potenzial zur Ausbildung von Kolonien bzw. Tumoren. Mittels Immunoblot war hier eine vermehrte Phosphorylierung der p38-MAPK festzustellen. Die zusammenfassende Betrachtung beider Modelle zeigt, dass ein reduzierter mitochondrialer Energiestoffwechsel durch Regulation der p38-MAPK und apoptotischer Signalwege ein erh{\"o}htes Krebsrisiko zu verursachen vermag.},
  language  = {de}
}
@phdthesis{GostkowskaLekner2024,
  author    = {Gostkowska-Lekner, Natalia Katarzyna},
  title     = {Organic-inorganic hybrids based on P3HT and mesoporous silicon for thermoelectric applications},
  doi       = {10.25932/publishup-62047},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-620475},
  school      = {Universit{\"a}t Potsdam},
  pages     = {121},
  year      = {2024},
  abstract  = {This thesis presents a comprehensive study on synthesis, structure and thermoelectric transport properties of organic-inorganic hybrids based on P3HT and porous silicon. The effect of embedding polymer in silicon pores on the electrical and thermal transport is studied. Morphological studies confirm successful polymer infiltration and diffusion doping with roughly 50\% of the pore space occupied by conjugated polymer. Synchrotron diffraction experiments reveal no specific ordering of the polymer inside the pores. P3HT-pSi hybrids show improved electrical transport by five orders of magnitude compared to porous silicon and power factor values comparable or exceeding other P3HT-inorganic hybrids. The analysis suggests different transport mechanisms in both materials. In pSi, the transport mechanism relates to a Meyer-Neldel compansation rule. The analysis of hybrids' data using the power law in Kang-Snyder model suggests that a doped polymer mainly provides charge carriers to the pSi matrix, similar to the behavior of a doped semiconductor. Heavily suppressed thermal transport in porous silicon is treated with a modified Landauer/Lundstrom model and effective medium theories, which reveal that pSi agrees well with the Kirkpatrick model with a 68\% percolation threshold. Thermal conductivities of hybrids show an increase compared to the empty pSi but the overall thermoelectric figure of merit ZT of P3HT-pSi hybrid exceeds both pSi and P3HT as well as bulk Si.},
  language  = {en}
}
@article{GhafarianWielandNendel2022,
  author    = {Ghafarian, Fatemeh and Wieland, Ralf and Nendel, Claas},
  title     = {Estimating the Evaporative Cooling Effect of Irrigation within and above Soybean Canopy},
  series = {Water},
  volume    = {14},
  journal   = {Water},
  number    = {3},
  publisher = {MDPI},
  address   = {Basel},
  issn      = {2073-4441},
  doi       = {10.3390/w14030319},
  pages     = {16},
  year      = {2022},
  abstract  = {Vegetation with an adequate supply of water might contribute to cooling the land surface around it through the latent heat flux of transpiration. This study investigates the potential estimation of evaporative cooling at plot scale, using soybean as example. Some of the plants' physiological parameters were monitored and sampled at weekly intervals. A physics-based model was then applied to estimate the irrigation-induced cooling effect within and above the canopy during the middle and late season of the soybean growth period. We then examined the results of the temperature changes at a temporal resolution of ten minutes between every two irrigation rounds. During the middle and late season of growth, the cooling effects caused by evapotranspiration within and above the canopy were, on average, 4.4 K and 2.9 K, respectively. We used quality indicators such as R-squared (R-2) and mean absolute error (MAE) to evaluate the performance of the model simulation. The performance of the model in this study was better above the canopy (R-2 = 0.98, MAE = 0.3 K) than below (R-2 = 0.87, MAE = 0.9 K) due to the predefined thermodynamic condition used to estimate evaporative cooling. Moreover, the study revealed that canopy cooling contributes to mitigating heat stress conditions during the middle and late seasons of crop growth.},
  language  = {en}
}
@article{Fuhr2021,
  author    = {Fuhr, Harald},
  title     = {The rise of the Global South and the rise in carbon emissions},
  series = {Third world quarterly},
  volume    = {42},
  journal   = {Third world quarterly},
  number    = {11},
  publisher = {Routledge, Taylor \& Francis Group},
  address   = {Abingdon},
  issn      = {0143-6597},
  doi       = {10.1080/01436597.2021.1954901},
  pages     = {2724 -- 2746},
  year      = {2021},
  abstract  = {Jointly with the Global North, the rise of the Global South has come at a high cost to the environment. Driven by its high energy intensity and the use of fossil fuels, the South has contributed a significant portion of global emissions during the last 30 years, and is now contributing some 63\% of today's total GHG emissions (including land-use change and forestry). Similar to the Global North, the Global South's emissions are heavily concentrated: India and China alone account for some 60\% and the top 10 countries for some 78\% of the group's emissions, while some 120 countries account for only 22\%. Without highlighting such differences, it makes little sense to use the term 'Global South'. Its members are affected differently, and contribute differently to global climate change. They neither share a common view, nor do they pursue joint interests when it comes to international climate negotiations. Instead, they are organised into more than a dozen subgroups of the global climate regime. There is no single climate strategy for the Global South, and climate action will differ enormously from country to country. Furthermore, just and equitable transitions may be particularly challenging for some countries.},
  language  = {en}
}
@phdthesis{Boehme2011,
  author    = {B{\"o}hme, Dimo},
  title     = {EU-Russia energy relations: What chance for solutions? : A focus on the natural gas sector},
  publisher = {Universit{\"a}tsverlag Potsdam},
  address   = {Potsdam},
  isbn      = {978-3-86956-120-2},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-50210},
  school      = {Universit{\"a}t Potsdam},
  pages     = {xix, 322},
  year      = {2011},
  abstract  = {Public debate about energy relations between the EU and Russia is distorted. These distortions present considerable obstacles to the development of true partnership. At the core of the conflict is a struggle for resource rents between energy producing, energy consuming and transit countries. Supposed secondary aspects, however, are also of great importance. They comprise of geopolitics, market access, economic development and state sovereignty. The European Union, having engaged in energy market liberalisation, faces a widening gap between declining domestic resources and continuously growing energy demand. Diverse interests inside the EU prevent the definition of a coherent and respected energy policy. Russia, for its part, is no longer willing to subsidise its neighbouring economies by cheap energy exports. The Russian government engages in assertive policies pursuing Russian interests. In so far, it opts for a different globalisation approach, refusing the role of mere energy exporter. In view of the intensifying struggle for global resources, Russia, with its large energy potential, appears to be a very favourable option for European energy supplies, if not the best one. However, several outcomes of the strategic game between the two partners can be imagined. Engaging in non-cooperative strategies will in the end leave all stakeholders worse-off. The European Union should therefore concentrate on securing its partnership with Russia instead of damaging it. Stable cooperation would need the acceptance that the partner may pursue his own goals, which might be different from one's own interests. The question is, how can a sustainable compromise be found? This thesis finds that a mix of continued dialogue, a tit for tat approach bolstered by an international institutional framework and increased integration efforts appears as a preferable solution.},
  language  = {en}
}
@book{Boehme2013,
  author    = {B{\"o}hme, Dimo},
  title     = {EU-Russia energy relations: What chance for solutions? : A focus on the natural gas sector},
  isbn      = {978-3-86956-278-0},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-63022},
  publisher      = {Universit{\"a}t Potsdam},
  year      = {2013},
  abstract  = {Public debate about energy relations between the EU and Russia is distorted. These distortions present considerable obstacles to the development of true partnership. At the core of the conflict is a struggle for resource rents between energy producing, energy consuming and transit countries. Supposed secondary aspects, however, are also of great importance. They comprise of geopolitics, market access, economic development and state sovereignty. The European Union, having engaged in energy market liberalisation, faces a widening gap between declining domestic resources and continuously growing energy demand. Diverse interests inside the EU prevent the definition of a coherent and respected energy policy. Russia, for its part, is no longer willing to subsidise its neighbouring economies by cheap energy exports. The Russian government engages in assertive policies pursuing Russian interests. In so far, it opts for a different globalisation approach, refusing the role of mere energy exporter. In view of the intensifying struggle for global resources, Russia, with its large energy potential, appears to be a very favourable option for European energy supplies, if not the best one. However, several outcomes of the strategic game between the two partners can be imagined. Engaging in non-cooperative strategies will in the end leave all stakeholders worse-off. The European Union should therefore concentrate on securing its partnership with Russia instead of damaging it. Stable cooperation would need the acceptance that the partner may pursue his own goals, which might be different from one's own interests. The question is, how can a sustainable compromise be found? This thesis finds that a mix of continued dialogue, a tit for tat approach bolstered by an international institutional framework and increased integration efforts appears as a preferable solution.},
  language  = {en}
}