@misc{KovalLazarevaMuelleretal., author = {Koval, Yuri and Lazareva, I. and M{\"u}ller, P. and M{\"u}ller, Klaus and Henkel, Karsten and Friedrich, Daniel}, title = {Field effect transistors on graphitized polymer surfaces}, language = {en} } @misc{LazarevaKovalMuelleretal., author = {Lazareva, I. and Koval, Yuri and M{\"u}ller, P. and M{\"u}ller, Klaus and Henkel, Karsten and Schmeißer, Dieter}, title = {Interface screening and imprint in pol(vinylidene fluoride/trifluoroethylene) ferroelectric field effect transistors}, language = {en} } @misc{HenkelLazarevaMandaletal., author = {Henkel, Karsten and Lazareva, I. and Mandal, Dipankar and Paloumpa, Ioanna and M{\"u}ller, Klaus and Koval, Yuri and M{\"u}ller, P. and Schmeißer, Dieter}, title = {Electrical investigations on metal/ferroelectric/insulator/semiconductor structures using Poly[vinylidene fluoride trifluoroethylene] as ferroelectric layer for organic nonvolatile memory applications}, language = {en} } @inproceedings{LazarevaKovalMuelleretal., author = {Lazareva, I. and Koval, Yuri and M{\"u}ller, P. and Paloumpa, Ioanna and M{\"u}ller, Klaus and Schmeißer, Dieter}, title = {Field effect transistor of graphitized polyimide with P(VDF-TrFE) as gate insulator}, series = {Verhandlungen der Deutschen Physikalischen Gesellschaft, Reihe 6, Bd. 43}, booktitle = {Verhandlungen der Deutschen Physikalischen Gesellschaft, Reihe 6, Bd. 43}, publisher = {Deutsche Physikalische Gesellschaft}, address = {Bad Honnef}, issn = {0420-0195}, pages = {S. 195}, abstract = {Surfaces of polyimide films were graphitized by low-energy ion irradiation. The conductivity was between 10-5 to 200 S/cm [1]. We prepared field effect transistors using this material. Ferroelectric P(VDF-TrFE) was used as gate insulator. The thickness of P(VDF-TrFE) varied from 120 nm to 1200 nm. Properties of P(VDF-TrFE) were investigated by current-voltage measurements of metal/ P(VDF-TrFE)/metal capacitors. We have found that at room temperature, the coercive field of P(VDF-TrFE) does not depend on the film thickness. At lower temperatures the coercive field increases proportionally to the reciprocal temperature. Remnant polarization is 9.5 µC/cm2. It slightly rises with decreasing temperature. Our recent results of field effect mobility, carrier concentration and threshold voltage are presented. [1] I. Lazareva, Y. Koval, M. Alam, S. Str{\"o}msd{\"o}rfer, P. M{\"u}ller, Appl. Phys. Lett. 90, 262108 (2007)}, language = {en} } @inproceedings{MuellerChowdhuryDremovetal., author = {M{\"u}ller, P. and Chowdhury, F. and Dremov, V. and Koval, Yuri and Lichtenberg, F. and M{\"u}ller, S. and Schmeißer, Dieter and Pentcheva, R.}, title = {Resistive memory switching in perovskite-derivative single crystals}, series = {Verhandlungen der Deutschen Physikalischen Gesellschaft, Reihe 6, Bd. 43}, booktitle = {Verhandlungen der Deutschen Physikalischen Gesellschaft, Reihe 6, Bd. 43}, publisher = {Deutsche Physikalische Gesellschaft}, address = {Bad Honnef}, issn = {0420-0195}, pages = {S. 818}, abstract = {We investigated several layered perovskite derivatives of the family AnBnO3n+2, such as LaTiO3.41, CaNbO3.41 and SrNbO3.41, which can be considered as a stacking of blocks consisting of 5 perovskite layers. Electric transport across these layers takes place via intrinsic tunnelling. Mesa devices with a cross-sectional area of 50 to 200 µm2 and a height between 30 and 500 nm were fabricated by electron-beam lithography and ion-beam etching. Both dc I-V characteristics and pulsed current injection have shown switching between different resistive states in these materials. The resistive states have long-term stability, which makes them interesting for memory applications. The transport experiments suggest that switching and resistive memory are controlled by trapping and release of charge carriers. Furthermore, photoelectron and NEXAFS spectroscopy of cleaved LaTiO3.41 surfaces have been performed. The results are compared to recent correlated band theory (LDA+U) calculations.}, language = {en} } @misc{MuellerSpindlerBrueggemannetal., author = {M{\"u}ller, Konrad and Spindler, G. and Br{\"u}ggemann, E. and Gnauk, T. and Koziar, C. and Schwarz, Jaroslav and Cafmeyer, Jan and Maenhaut, W. and Even, A. and Kok, J. and Berner, A. and Ctyroky, P. and Hitzenberger, R. and Galambos, Z. and Tursic, J. and M{\"a}kela, Timo and Laitinen, A. and Acker, Karin and Wieprecht, Wolfgang and Hillamo, Risto and Streit, N.}, title = {The "INTERCOMP 2000" in Melpitz - an EUROTRAC-2 Activity}, series = {Journal of Aerosol Science}, volume = {32}, journal = {Journal of Aerosol Science}, number = {Supplement 1}, issn = {0021-8502}, pages = {1021 -- 1022}, language = {en} } @inproceedings{MuellerWahlichKrottenthaler, author = {M{\"u}ller, T. and Wahlich, R. and Krottenthaler, P.}, title = {Modelling and experimental verification of the 300mm Ar Anneal Process}, language = {en} } @article{MuellerWahlichKrottenthaler, author = {M{\"u}ller, T. and Wahlich, R. and Krottenthaler, P.}, title = {Modeling and experimental verification of the 300mm Ar anneal process}, language = {en} } @misc{BillerbeckKieferWinkleretal., author = {Billerbeck, Anna and Kiefer, Christoph P. and Winkler, Jenny and Bernath, Christiane and Sensfuß, Frank and Kranzl, Lukas and M{\"u}ller, Andreas and Ragwitz, Mario}, title = {The race between hydrogen and heat pumps for space and water heating: A model-based scenario analysis}, series = {Energy Conversion and Management}, volume = {299}, journal = {Energy Conversion and Management}, publisher = {Elsevier BV}, issn = {0196-8904}, doi = {10.1016/j.enconman.2023.117850}, pages = {19}, abstract = {This paper analyses different levels and means of the electrification of space and hot water heating using an explorative modelling approach. The analysis provides guidance to the ongoing discussion on favourable pathways for heating buildings and the role of secondary energy carriers such as hydrogen or synthetic fuels. In total, 12 different scenarios were modelled with decarbonisation pathways until 2050, which cover all 27 member states of the European Union. Two highly detailed optimisation models were combined to cover the building stock and the upstream energy supply sector. The analysis shows that decarbonisation pathways for space and water heating based on large shares of heat pumps have at least 11\% lower system costs in 2050 than pathways with large shares of hydrogen or synthetic fuels. This translates into system cost savings of around €70 bn. Heat pumps are cost-efficient in decentralised systems and in centralised district heating systems. Hence, heat pumps should be the favoured option to achieve a cost-optimal solution for heating buildings. Accordingly, the paper makes a novel and significant contribution to understanding suitable and cost-efficient decarbonisation pathways for space and hot water heating via electrification. The results of the paper can provide robust guidance for policymakers.}, language = {en} } @book{HoffmannAndersFischeretal., author = {Hoffmann, Melanie and Anders, Kenneth and Fischer, Lars and B{\"o}llmann, J{\"o}rg and Br{\"u}ckner, Ardo and Brunk, Ingo and Donath, Helmut and Donat, Ralf and Elmer, Michael and G{\"u}th, Mareike and H{\"a}ußler, Robert and Mrzljak, Jadranka and Mudra, Dieter and M{\"u}ller, Markus and Peschel, Tim and Pilz, Wilfried and Sawade, Wolfgang and Schonert, P. and Siedschlag, Marina and Siedschlag, Yvonne and Wanner, Manfred and W{\"o}llecke, Jens}, title = {Kolonisten gesucht! Steckbriefe nat{\"u}rlicher und sozialer Besiedler der Bergbaufolgelandschaft Schlabendorfer Felder}, editor = {Hoffmann, Melanie and Anders, Kenneth and Fischer, Lars}, publisher = {B{\"u}ro f{\"u}r Landschaftskommunikation}, address = {Bad Freienwalde}, pages = {52}, language = {de} }