@book{NeumannBrandtWardenbergBrodowskyetal.2008,
  author    = {Neumann, Martin and Brandt-Wardenberg, Henriette and Brodowsky, Kristin and Ebert, Daniel and Hose, Susanne and Junge, Katrin and Kappler, Anna and Karges, Melanie and Lehnert, Annette and Richter, Olivia and Schirrmeister, Sebastian and Solich, Raphaela and Thaele, Liisa and Trenkner, Christina and Tsch{\"o}pel, Sebastian and Unger, Katharina and Winkler, Anja and Zimmermann, Steven and Kirschke, Andreas and Ladusch, Manfred},
  title     = {Sorben (Wenden) - Eine Brandenburger Minderheit und ihre Thematisierung im Unterricht : Teil III: Krabat - Aspekte einer sorbischen Sage},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-27315},
  publisher      = {Universit{\"a}t Potsdam},
  year      = {2008},
  abstract  = {Die vorliegende Publikation f{\"a}llt ein wenig aus dem Rahmen der Reihe „Sorben (Wenden) - Eine Brandenburger Minderheit und ihre Thematisierung im Unterricht". Im Gegensatz zu den anderen Teilen widmet sie sich nur einem Gegenstand - dem Stoff der Krabat-Sagen. Damit richtet sie sich haupts{\"a}chlich an Lehrkr{\"a}fte im Fach Deutsch, wobei auch fach{\"u}bergreifende und F{\"a}cher verbindende Aspekte ber{\"u}cksichtigt werden. Die Krabat-Sage z{\"a}hlt vor allem in der Bearbeitung von Preußler zu den bekanntesten sorbischen Stoffen. Diese sorbischen Wurzeln werden allerdings nur selten thematisiert. Daher sind viele der vorliegenden Betrachtungen zu ausgew{\"a}hlten Aspekten auch als Anregungen zu verstehen, unter welchen Gesichtspunkten Krabat behandelt oder gar neu interpretiert und weiterentwickelt werden k{\"o}nnte. Diese Handreichung ist so konzipiert, dass sie je nach Interesse ausschnittweise gelesen werden kann: Auf einen {\"U}berblick {\"u}ber verschiedene Krabat-Bearbeitungen folgen Betrachtungen sorbischer Aspekte als auch M{\"o}glichkeiten einer Thematisierung {\"u}ber den Deutsch-Unterricht hinaus. Dabei wird auf M{\"o}glichkeiten einer Exkursion in die historische Krabat-Region in der Lausitz eingegangen. Es folgen Texte zu ausgew{\"a}hlten Einzelaspekten. Zudem enth{\"a}lt diese Publikation eine Zusammenstellung von verschiedenen Krabat-Materialien und Hinweise auf Unterrichtsprojekte zur Anregung, weiteren Vertiefung bzw. f{\"u}r den eigenen Unterrichtseinsatz.},
  language  = {de}
}
@article{UngerBuschmannSeefeldetal.2020,
  author    = {Unger, Julia and Buschmann, Anke and Seefeld, Martin and Mahlberg, Lea},
  title     = {Die Bedeutung der Selbsthilfe zum Erreichen pers{\"o}nlicher Therapieziele bei stotternd sprechenden Erwachsenen},
  series = {Spektrum Patholinguistik},
  journal   = {Spektrum Patholinguistik},
  number    = {12},
  publisher = {Universit{\"a}tsverlag Potsdam},
  address   = {Potsdam},
  isbn      = {978-3-86956-479-1},
  issn      = {1866-9085},
  doi       = {10.25932/publishup-46952},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-469521},
  pages     = {101 -- 107},
  year      = {2020},
  language  = {de}
}
@article{HemmeVeyelMuehlhausetal.2014,
  author    = {Hemme, Dorothea and Veyel, Daniel and Muehlhaus, Timo and Sommer, Frederik and Jueppner, Jessica and Unger, Ann-Katrin and Sandmann, Michael and Fehrle, Ines and Schoenfelder, Stephanie and Steup, Martin and Geimer, Stefan and Kopka, Joachim and Giavalisco, Patrick and Schroda, Michael},
  title     = {Systems-wide analysis of acclimation responses to long-term heat stress and recovery in the photosynthetic model organism Chlamydomonas reinhardtii},
  series = {The plant cell},
  volume    = {26},
  journal   = {The plant cell},
  number    = {11},
  publisher = {American Society of Plant Physiologists},
  address   = {Rockville},
  issn      = {1040-4651},
  doi       = {10.1105/tpc.114.130997},
  pages     = {4270 -- 4297},
  year      = {2014},
  abstract  = {We applied a top-down systems biology approach to understand how Chlamydomonas reinhardtii acclimates to long-term heat stress (HS) and recovers from it. For this, we shifted cells from 25 to 42 degrees C for 24 h and back to 25 degrees C for >= 8 h and monitored abundances of 1856 proteins/protein groups, 99 polar and 185 lipophilic metabolites, and cytological and photosynthesis parameters. Our data indicate that acclimation of Chlamydomonas to long-term HS consists of a temporally ordered, orchestrated implementation of response elements at various system levels. These comprise (1) cell cycle arrest; (2) catabolism of larger molecules to generate compounds with roles in stress protection; (3) accumulation of molecular chaperones to restore protein homeostasis together with compatible solutes; (4) redirection of photosynthetic energy and reducing power from the Calvin cycle to the de novo synthesis of saturated fatty acids to replace polyunsaturated ones in membrane lipids, which are deposited in lipid bodies; and (5) when sinks for photosynthetic energy and reducing power are depleted, resumption of Calvin cycle activity associated with increased photorespiration, accumulation of reactive oxygen species scavengers, and throttling of linear electron flow by antenna uncoupling. During recovery from HS, cells appear to focus on processes allowing rapid resumption of growth rather than restoring pre-HS conditions.},
  language  = {en}
}
@article{UngerDibiasi2017,
  author    = {Unger, Martin and Dibiasi, Anna},
  title     = {Aktuelle Debatten im {\"o}sterreichischen Hochschulsystem},
  series = {Potsdamer Beitr{\"a}ge zur Hochschulforschung},
  journal   = {Potsdamer Beitr{\"a}ge zur Hochschulforschung},
  number    = {3},
  publisher = {Universit{\"a}tsverlag Potsdam},
  address   = {Potsdam},
  isbn      = {978-3-86956-399-2},
  issn      = {2192-1075},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-399749},
  pages     = {223 -- 240},
  year      = {2017},
  language  = {de}
}
@article{DibiasiUnger2019,
  author    = {Dibiasi, Anna and Unger, Martin},
  title     = {Die Studieneingangsphase an {\"o}ffentlichen Universit{\"a}ten in {\"O}sterreich},
  series = {Alles auf Anfang! Befunde und Perspektiven zum Studieneingang},
  journal   = {Alles auf Anfang! Befunde und Perspektiven zum Studieneingang},
  publisher = {Universit{\"a}tsverlag Potsdam},
  address   = {Potsdam},
  isbn      = {978-3-86956-452-4},
  issn      = {2192-1075},
  doi       = {10.25932/publishup-42858},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-428588},
  pages     = {325 -- 335},
  year      = {2019},
  language  = {de}
}
@misc{IvenHansenAndersetal.2020,
  author    = {Iven, Claudia and Hansen, Bernd and Anders, Kristina and Starke, Andreas and Richardt, Kirsten and Pr{\"u}ß, Holger and El Meskioui, Martina and Haase, Tobias and Mahlberg, Lea and Wiehe, Lea and de Beer, Carola and Niepelt Karampamapa, Rebekka and Hofmann, Andrea and Stadie, Nicole and Hanne, Sandra and Thomson, Jenny and Sch{\"a}fer, Blanca and Huttenlauch, Clara and Wartenburger, Isabell and Weiland, Katharina and Wirsam, Anke and Hartung, Julia and Wahl, Michael and Unger, Julia and Buschmann, Anke and Seefeld, Martin and Bethge, Anita and Fieder, Nora and Rahman, Rasha Abdel and Nousair, Iman and Klassert, Annegret and Wellmann, Caroline and Verbree, Rahel and van Rij, Jacolien and Sprenger, Simone and M{\"a}hl, Anna Luisa and Schneider, Kathleen and Kutz, Anne and Kaps, Hella and Frank, Ulrike and Brekeller, Sophie and Ryll, Katja},
  title     = {Spektrum Patholinguistik Band 12. Schwerpunktthema: Weg(e) mit dem Stottern: Therapie und Selbsthilfe f{\"u}r Kinder und Erwachsene},
  series = {Spektrum Patholinguistik},
  journal   = {Spektrum Patholinguistik},
  number    = {12},
  editor    = {Breitenstein, Sarah and Burmester, Juliane and Yetim, {\"O}zlem and Fritzsche, Tom},
  publisher = {Universit{\"a}tsverlag Potsdam},
  address   = {Potsdam},
  isbn      = {978-3-86956-479-1},
  issn      = {1866-9085},
  doi       = {10.25932/publishup-43700},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-437002},
  pages     = {viii, 257},
  year      = {2020},
  abstract  = {Das 12. Herbsttreffen Patholinguistik mit dem Schwerpunktthema »Weg(e) mit dem Stottern: Therapie und Selbsthilfe f{\"u}r Kinder und Erwachsene« fand am 24.11.2018 in Potsdam statt. Das Herbsttreffen wird seit 2007 j{\"a}hrlich vom Verband f{\"u}r Patholinguistik e.V. (vpl) durchgef{\"u}hrt. Der vorliegende Tagungsband beinhaltet die Vortr{\"a}ge zum Schwerpunktthema sowie Beitr{\"a}ge der Posterpr{\"a}sentationen zu weiteren Themen aus der sprachtherapeutischen Forschung und Praxis.},
  language  = {de}
}
@book{FuhrmannSchubarthSchulzeReicheltetal.2019,
  author    = {Fuhrmann, Michaela and Schubarth, Wilfried and Schulze-Reichelt, Friederike and Mauermeister, Sylvi and Seidel, Andreas and Hartmann, Nina and Erdmann, Melinda and Apostolow, Benjamin and Wagner, Laura and Berndt, Sarah and Wippermann, Melanie and Ratzlaff, Olaf and Lumpe, Matthias and Kirjuchina, Ljuba and Rost, Sophia and Zurek, Peter Paul and Faaß, Marcel and Schellhorn, Sebastian and Frank, Mario and Kreitz, Christoph and Wagner, Nelli and Jenneck, Julia and Kleemann, Katrin and Vock, Miriam and Schr{\"o}der, Christian and Erdmann, Kathrin and Koziol, Matthias and Meißner, Marlen and Dibiasi, Anna and Unger, Martin and Piskunova, Elena V. and Bahmutskiy, Andrey E. and Bessonova, Ekatarina A. and Borovik, Ludmila K.},
  title     = {Alles auf Anfang!},
  series = {Potsdamer Beitr{\"a}ge zur Hochschulforschung},
  journal   = {Potsdamer Beitr{\"a}ge zur Hochschulforschung},
  number    = {4},
  editor    = {Schubarth, Wilfried and Mauermeister, Sylvi and Schulze-Reichelt, Friederike and Seidel, Andreas},
  publisher = {Universit{\"a}tsverlag Potsdam},
  address   = {Potsdam},
  isbn      = {978-3-86956-452-4},
  issn      = {2192-1075},
  doi       = {10.25932/publishup-42296},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-422965},
  publisher      = {Universit{\"a}t Potsdam},
  pages     = {373},
  year      = {2019},
  abstract  = {Im Zuge der Bologna-Reform ist an Hochschulen vieles in Bewegung gekommen. Studium und Lehre sind st{\"a}rker ins Blickfeld ger{\"u}ckt. Dabei kommt der Studieneingangsphase besondere Bedeutung zu, werden doch hier die Weichen f{\"u}r ein erfolgreiches Studium gestellt. Deshalb ist es verst{\"a}ndlich, dass die Hauptanstrengungen der Hochschulen auf den Studieneingang gerichtet sind - ganz nach dem Motto: „Auf den Anfang kommt es an!". Konsens herrscht dahingehend, dass der Studieneingang neu zu gestalten ist, doch beim „Wie?" gibt es unterschiedliche Antworten. Zugleich wird immer deutlicher, dass eine wirksame Neugestaltung der Eingangsphase nur mit einer umfassenden Reform des Studiums gelingen kann. Ziel des vierten Bandes der Potsdamer Beitr{\"a}ge zur Hochschulforschung ist es, eine Zwischenbilanz der Debatte zum Studieneingang zu ziehen. Auf der Basis empirischer Studien werden unterschiedliche Perspektiven auf den Studieneingang eingenommen und Empfehlungen zur Optimierung des Studieneingangs abgeleitet. Die zahlreichen Untersuchungsergebnisse Potsdamer Forschergruppen werden durch weitere nationale sowie internationale Perspektiven erg{\"a}nzt. Der Band richtet sich an alle, die sich f{\"u}r die Entwicklung an Hochschulen interessieren.},
  language  = {de}
}
@book{SchubarthSeidelMauermeisteretal.2017,
  author    = {Schubarth, Wilfried and Seidel, Andreas and Mauermeister, Sylvi and Fuhrmann, Michaela and Faaß, Marcel and Niproschke, Saskia and Zylla, Birgitta and Ulbricht, Juliane and Schulze-Reichelt, Friederike and K{\"o}hler, Anke and Erdmann, Melinda and Ratzlaff, Olaf and Kottmann, Andrea and Unger, Martin and Dibiasi, Anna and Grzywacz, Małgorzata and Miłkowska, Grażyna and Piorunek, Magdalena and Sałaciński, Lech and Grecmanov{\´a}, Helena and Dopita, Miroslav and Kantorov{\´a}, Jana and Wippermann, Melanie and Skopalov{\´a}, Jitka and V'junova, Natalja Ivanovna and Ivanova, Olga Anatol'evna and Apostolow, Benjamin},
  title     = {Studium nach Bologna},
  series = {Potsdamer Beitr{\"a}ge zur Hochschulforschung},
  journal   = {Potsdamer Beitr{\"a}ge zur Hochschulforschung},
  number    = {3},
  editor    = {Schubarth, Wilfried and Mauermeister, Sylvi and Seidel, Andreas},
  publisher = {Universit{\"a}tsverlag Potsdam},
  address   = {Potsdam},
  isbn      = {978-3-86956-399-2},
  issn      = {2192-1075},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-103998},
  publisher      = {Universit{\"a}t Potsdam},
  pages     = {302},
  year      = {2017},
  abstract  = {Ziel des vorliegenden dritten Bandes der Potsdamer Beitr{\"a}ge zur Hochschulforschung ist es, ausgew{\"a}hlte Aspekte der Hochschuldebatte um Studium und Lehre zu beleuchten und mit empirischen Befunden zu vertiefen. Im ­Fokus stehen solche aktuellen Debatten wie die Gestaltung des Studieneingangs, die Erh{\"o}hung der Besch{\"a}ftigungsbef{\"a}higung, die Qualit{\"a}t der Praktika sowie Probleme der Lehrerbildung. Dabei wird die Hochschuldebatte in Deutschland durch einschl{\"a}gige Beitr{\"a}ge aus anderen, west- und osteurop{\"a}ischen L{\"a}ndern erweitert. Die Reihe versteht sich als Forum verschiedener Akteure aus der Hochschulforschung, die die Diskussion zur Qualit{\"a}tsentwicklung in Lehre und Studium mit ihren Impulsen aus Analysen und empirischen Ergebnissen bereichern sollen. Der Band richtet sich an alle, die sich f{\"u}r die Entwicklung an Hochschulen interessieren.},
  language  = {de}
}
@article{BraungerMundtWolffetal.2018,
  author    = {Braunger, Steffen and Mundt, Laura E. and Wolff, Christian Michael and Mews, Mathias and Rehermann, Carolin and Jost, Marko and Tejada, Alvaro and Eisenhauer, David and Becker, Christiane and Andres Guerra, Jorge and Unger, Eva and Korte, Lars and Neher, Dieter and Schubert, Martin C. and Rech, Bernd and Albrecht, Steve},
  title     = {Cs(x)FA(1-x)Pb(l(1-y)Br(y))(3) Perovskite Compositions},
  series = {The journal of physical chemistry : C, Nanomaterials and interfaces},
  volume    = {122},
  journal   = {The journal of physical chemistry : C, Nanomaterials and interfaces},
  number    = {30},
  publisher = {American Chemical Society},
  address   = {Washington},
  issn      = {1932-7447},
  doi       = {10.1021/acs.jpcc.8b06459},
  pages     = {17123 -- 17135},
  year      = {2018},
  abstract  = {We report on the formation of wrinkle-patterned surface morphologies in cesium formamidinium-based Cs(x)FA(1-y)Pb(I1-yBry)(3) perovskite compositions with x = 0-0.3 and y = 0-0.3 under various spin-coating conditions. By varying the Cs and Br contents, the perovskite precursor solution concentration and the spin-coating procedure, the occurrence and characteristics of the wrinkle-shaped morphology can be tailored systematically. Cs(0.17)FA(0.83)Pb(I0.83Br0.17)(3) perovskite layers were analyzed regarding their surface roughness, microscopic structure, local and overall composition, and optoelectronic properties. Application of these films in p-i-n perovskite solar cells (PSCs) with indium-doped tin oxide/NiOx/perovskite/C-60/bathocuproine/Cu architecture resulted in up to 15.3 and 17.0\% power conversion efficiency for the flat and wrinkled morphology, respectively. Interestingly, we find slightly red-shifted photoluminescence (PL) peaks for wrinkled areas and we are able to directly correlate surface topography with PL peak mapping. This is attributed to differences in the local grain size, whereas there is no indication for compositional demixing in the films. We show that the perovskite composition, crystallization kinetics, and layer thickness strongly influence the formation of wrinkles which is proposed to be related to the release of compressive strain during perovskite crystallization. Our work helps us to better understand film formation and to further improve the efficiency of PSCs with widely used mixed-perovskite compositions.},
  language  = {en}
}
@unpublished{WannickeEndresEngeletal.2012,
  author    = {Wannicke, Nicola and Endres, S. and Engel, A. and Grossart, Hans-Peter and Nausch, M. and Unger, J. and Voss, Martin},
  title     = {Response of nodularia spumigena to pCO(2) - Part 1: Growth, production and nitrogen cycling},
  series = {Biogeosciences},
  volume    = {9},
  journal   = {Biogeosciences},
  number    = {8},
  publisher = {Copernicus},
  address   = {G{\"o}ttingen},
  issn      = {1726-4170},
  doi       = {10.5194/bg-9-2973-2012},
  pages     = {2973 -- 2988},
  year      = {2012},
  abstract  = {Heterocystous cyanobacteria of the genus Nodularia form extensive blooms in the Baltic Sea and contribute substantially to the total annual primary production. Moreover, they dispense a large fraction of new nitrogen to the ecosystem when inorganic nitrogen concentration in summer is low. Thus, it is of ecological importance to know how Nodularia will react to future environmental changes, in particular to increasing carbon dioxide (CO2) concentrations and what consequences there might arise for cycling of organic matter in the Baltic Sea. Here, we determined carbon (C) and dinitrogen (N-2) fixation rates, growth, elemental stoichiometry of particulate organic matter and nitrogen turnover in batch cultures of the heterocystous cyanobacterium Nodularia spumigena under low (median 315 mu atm), mid (median 353 mu atm), and high (median 548 mu atm) CO2 concentrations. Our results demonstrate an overall stimulating effect of rising pCO(2) on C and N-2 fixation, as well as on cell growth. An increase in pCO(2) during incubation days 0 to 9 resulted in an elevation in growth rate by 84 +/- 38\% (low vs. high pCO(2)) and 40 +/- 25\% (mid vs. high pCO(2)), as well as in N-2 fixation by 93 +/- 35\% and 38 +/- 1\%, respectively. C uptake rates showed high standard deviations within treatments and in between sampling days. Nevertheless, C fixation in the high pCO(2) treatment was elevated compared to the other two treatments by 97\% (high vs. low) and 44\% (high vs. mid) at day 0 and day 3, but this effect diminished afterwards. Additionally, elevation in carbon to nitrogen and nitrogen to phosphorus ratios of the particulate biomass formed (POC : POP and PON : POP) was observed at high pCO(2). Our findings suggest that rising pCO(2) stimulates the growth of heterocystous diazotrophic cyanobacteria, in a similar way as reported for the non-heterocystous diazotroph Trichodesmium. Implications for biogeochemical cycling and food web dynamics, as well as ecological and socio-economical aspects in the Baltic Sea are discussed.},
  language  = {en}
}
@article{TockhornSutterCruzBournazouetal.2022,
  author    = {Tockhorn, Philipp and Sutter, Johannes and Cruz Bournazou, Alexandros and Wagner, Philipp and J{\"a}ger, Klaus and Yoo, Danbi and Lang, Felix and Grischek, Max and Li, Bor and Li, Jinzhao and Shargaieva, Oleksandra and Unger, Eva and Al-Ashouri, Amran and K{\"o}hnen, Eike and Stolterfoht, Martin and Neher, Dieter and Schlatmann, Rutger and Rech, Bernd and Stannowski, Bernd and Albrecht, Steve and Becker, Christiane},
  title     = {Nano-optical designs for high-efficiency monolithic perovskite-silicon tandem solar cells},
  series = {Nature nanotechnology},
  volume    = {17},
  journal   = {Nature nanotechnology},
  number    = {11},
  publisher = {Nature Publishing Group},
  address   = {London [u.a.]},
  issn      = {1748-3387},
  doi       = {10.1038/s41565-022-01228-8},
  pages     = {1214 -- 1221},
  year      = {2022},
  abstract  = {Designing gentle sinusoidal nanotextures enables the realization of high-efficiency perovskite-silicon solar cells <br /> Perovskite-silicon tandem solar cells offer the possibility of overcoming the power conversion efficiency limit of conventional silicon solar cells. Various textured tandem devices have been presented aiming at improved optical performance, but optimizing film growth on surface-textured wafers remains challenging. Here we present perovskite-silicon tandem solar cells with periodic nanotextures that offer various advantages without compromising the material quality of solution-processed perovskite layers. We show a reduction in reflection losses in comparison to planar tandems, with the new devices being less sensitive to deviations from optimum layer thicknesses. The nanotextures also enable a greatly increased fabrication yield from 50\% to 95\%. Moreover, the open-circuit voltage is improved by 15 mV due to the enhanced optoelectronic properties of the perovskite top cell. Our optically advanced rear reflector with a dielectric buffer layer results in reduced parasitic absorption at near-infrared wavelengths. As a result, we demonstrate a certified power conversion efficiency of 29.80\%.},
  language  = {en}
}
@misc{WolffCanilRehermannetal.2020,
  author    = {Wolff, Christian Michael and Canil, Laura and Rehermann, Carolin and Nguyen, Ngoc Linh and Zu, Fengshuo and Ralaiarisoa, Maryline and Caprioglio, Pietro and Fiedler, Lukas and Stolterfoht, Martin and Kogikoski, Junior, Sergio and Bald, Ilko and Koch, Norbert and Unger, Eva L. and Dittrich, Thomas and Abate, Antonio and Neher, Dieter},
  title     = {Correction to 'Perfluorinated self-assembled monolayers enhance the stability and efficiency of inverted perovskite solar cells' (2020, 14 (2), 1445-1456)},
  series = {ACS nano},
  volume    = {14},
  journal   = {ACS nano},
  number    = {11},
  publisher = {American Chemical Society},
  address   = {Washington, DC},
  issn      = {1936-0851},
  doi       = {10.1021/acsnano.0c08081},
  pages     = {16156 -- 16156},
  year      = {2020},
  language  = {en}
}
@article{ZuWarbyStolterfohtetal.2021,
  author    = {Zu, Fengshuo and Warby, Jonathan and Stolterfoht, Martin and Li, Jinzhao and Shin, Dongguen and Unger, Eva and Koch, Norbert},
  title     = {Photoinduced energy-level realignment at interfaces between organic semiconductors and metal-halide perovskites},
  series = {Physical review letters},
  volume    = {127},
  journal   = {Physical review letters},
  number    = {24},
  publisher = {American Physical Society},
  address   = {College Park},
  issn      = {0031-9007},
  doi       = {10.1103/PhysRevLett.127.246401},
  pages     = {6},
  year      = {2021},
  abstract  = {In contrast to the common conception that the interfacial energy-level alignment is affixed once the interface is formed, we demonstrate that heterojunctions between organic semiconductors and metal-halide perovskites exhibit huge energy-level realignment during photoexcitation. Importantly, the photoinduced level shifts occur in the organic component, including the first molecular layer in direct contact with the perovskite. This is caused by charge-carrier accumulation within the organic semiconductor under illumination and the weak electronic coupling between the junction components.},
  language  = {en}
}
@article{GrischekCaprioglioZhangetal.2022,
  author    = {Grischek, Max and Caprioglio, Pietro and Zhang, Jiahuan and Pena-Camargo, Francisco and Sveinbjornsson, Kari and Zu, Fengshuo and Menzel, Dorothee and Warby, Jonathan and Li, Jinzhao and Koch, Norbert and Unger, Eva and Korte, Lars and Neher, Dieter and Stolterfoht, Martin and Albrecht, Steve},
  title     = {Efficiency Potential and Voltage Loss of Inorganic CsPbI2Br Perovskite Solar Cells},
  series = {Solar RRL},
  volume    = {6},
  journal   = {Solar RRL},
  number    = {11},
  publisher = {Wiley-VCH},
  address   = {Weinheim},
  issn      = {2367-198X},
  doi       = {10.1002/solr.202200690},
  pages     = {12},
  year      = {2022},
  abstract  = {Inorganic perovskite solar cells show excellent thermal stability, but the reported power conversion efficiencies are still lower than for organic-inorganic perovskites. This is mainly caused by lower open-circuit voltages (V(OC)s). Herein, the reasons for the low V-OC in inorganic CsPbI2Br perovskite solar cells are investigated. Intensity-dependent photoluminescence measurements for different layer stacks reveal that n-i-p and p-i-n CsPbI2Br solar cells exhibit a strong mismatch between quasi-Fermi level splitting (QFLS) and V-OC. Specifically, the CsPbI2Br p-i-n perovskite solar cell has a QFLS-e center dot V-OC mismatch of 179 meV, compared with 11 meV for a reference cell with an organic-inorganic perovskite of similar bandgap. On the other hand, this study shows that the CsPbI2Br films with a bandgap of 1.9 eV have a very low defect density, resulting in an efficiency potential of 20.3\% with a MeO-2PACz hole-transporting layer and 20.8\% on compact TiO2. Using ultraviolet photoelectron spectroscopy measurements, energy level misalignment is identified as a possible reason for the QFLS-e center dot V-OC mismatch and strategies for overcoming this V-OC limitation are discussed. This work highlights the need to control the interfacial energetics in inorganic perovskite solar cells, but also gives promise for high efficiencies once this issue is resolved.},
  language  = {en}
}