@book{SpechtForkelWeberetal., author = {Specht, Dieter and Forkel, M. and Weber, H. and Specht, Dieter}, title = {Fokus - Forschungskapazit{\"a}ten und -seviceleistungen}, publisher = {Berlin; Heidelberg u. a. : Springer}, language = {en} } @inproceedings{GehrlichOhsiekKleinetal., author = {Gehrlich, Lukas and Ohsiek, Susanne and Klein, M. and Geiss, M. and Friedemann, Michael and K{\"u}cher, Peter and Schmeißer, Dieter}, title = {Ultrathin TaN/Ta barrier modifications to fullfill next technology node requirements}, series = {2011 IEEE International Interconnect Technology Conference and 2011 Materials for Advanced Metallization (IITC/MAM 2011), Dresden, Germany, 8 - 12 May 2011}, booktitle = {2011 IEEE International Interconnect Technology Conference and 2011 Materials for Advanced Metallization (IITC/MAM 2011), Dresden, Germany, 8 - 12 May 2011}, publisher = {IEEE}, address = {Piscataway, NJ}, isbn = {978-1-4577-0503-8}, doi = {10.1109/IITC.2011.5940322}, pages = {82 -- 84}, language = {en} } @inproceedings{MaiDauderstaedtPahneretal., author = {Mai, Andreas and Dauderst{\"a}dt, Ulrike and Pahner, D. and Krellmann, M. and Schmeißer, Dieter and Wagner, M.}, title = {In situ determination of laser induced degradation of micro-mirror arrays}, series = {International Students and Young Scientists Workshop Photonics and Microsystems, Cottbus, Germany, 8 - 10 June 2011}, booktitle = {International Students and Young Scientists Workshop Photonics and Microsystems, Cottbus, Germany, 8 - 10 June 2011}, publisher = {IEEE}, address = {Piscataway, NJ}, isbn = {978-1-4577-1651-5}, doi = {10.1109/STYSW.2011.6155850}, pages = {84 -- 88}, abstract = {The Fraunhofer Institute for Photonic Microsystems (Fraunhofer IPMS) develops spatial light modulators (SLMs) based on arrays of tiltable micro mirrors on a semiconductor chip. Typical applications are pattern generation for deepUV-laser mask writing or structured illumination in microscopy. Development and optimization of such SLMs requires detailed knowledge of the device behaviour under operating conditions. Here, the flatness of each single mirror effects the image resolution and contrast of the generated pattern and is amongst others a characteristic property of SLMs. In this context a surface topography measurement under laser exposure (in situ) was designed. The interferometric setup uses the phase-shift principle and allows a resolution in z-direction in the single-digit nanometer range. During irradiation with UV-laser light at 248 nm (KrF) and energy densities of up to 20 mJ/cm2 the change in single micro-mirrors topography was detected in situ. Measurementswith varying pulse energies were carried out to identify an impacton the device performance. In general, the setup is neither limited to a specific illumination wavelength nor to micro-mirrors as structures under test.}, language = {en} } @techreport{MuellerDieterBauhusetal., author = {M{\"u}ller, J{\"o}rg and Dieter, M. and Bauhus, J. and Spellmann, H. and M{\"o}hring, B. and Wagner, S. and Wolf, Heino and Niekisch, M. and Weiger, H. and Feindt, Peter H. and Hamm, Ulrich and W{\"a}tzold, Frank and Wolters, Volkmar and Engels, Eve-Marie and Schraml, U. and Lang, F. and Pr{\"o}bstl-Haider, U. and Richter, K.}, title = {Wege zu einem effizienten Waldnaturschutz in Deutschland. Stellungnahme}, publisher = {Wissenschaftlicher Beirat Waldpolitik und Wissenschaftlicher Beirat Biodiversit{\"a}t und Genetische Ressourcen beim BMEL}, pages = {62}, language = {de} } @article{SpechtGruss, author = {Specht, Dieter and Gruß, Christian M. F.}, title = {Revenue Management - sind Ertragssteigerungen auch f{\"u}r produzierende Unternehmen m{\"o}glich?}, language = {de} } @misc{DrexlerShishkanovaLangeetal., author = {Drexler, Christoph and Shishkanova, Tatiana V. and Lange, Christoph and Danilov, Sergey N. and Weiss, Dieter and Ganichev, Sergey D. and Mirsky, Vladimir M.}, title = {Terahertz split-ring metamaterials as transducers for chemical sensors based on conducting polymers: a feasibility study with sensing of acidic and basic gases using polyaniline chemosensitive layer}, series = {Microchimica Acta}, volume = {181}, journal = {Microchimica Acta}, issn = {1436-5073}, doi = {10.5283/epub.31493}, pages = {1857 -- 1862}, abstract = {We report on the first application of terahertz metamaterials acting as transducers for chemical sensors based on conducting polymers. In our feasibility study aimed at sensing of gaseous hydrochloric and ammonia, a two-dimensional sensor metamaterial consisting of an array of split-ring resonators on the surface of undoped silicon wafer was prepared. The surface of the resonator was coated with a 150-μm layer of polyaniline. Binding of hydrogen chloride to polyaniline leads to distinct changes in the resonance frequency of the metamaterial. Measurements can be performed both in the reflection and transmission mode. A numerical simulation of the response revealed an increase of both the real and the imaginary components of the dielectric function of the polyaniline film. These changes are attributed to the transition from emaraldine base to emeraldine salt. The results demonstrate a new approach for formation of highly sensitive transducers for chemical sensors.}, language = {en} } @misc{DelaneyZiminRahmetal., author = {Delaney, Tetyana L. and Zimin, Denys and Rahm, Michael and Weiss, Dieter and Wolfbeis, Otto S. and Mirsky, Vladimir M.}, title = {Capacitive detection in ultrathin chemosensors prepared by molecularly imprinted grafting photopolymerization}, series = {Analytical Chemistry}, volume = {79}, journal = {Analytical Chemistry}, number = {8}, issn = {0003-2700}, doi = {10.1021/ac062143v}, pages = {3220 -- 3225}, abstract = {The usual applications of capacitive detection in chemo- and biosensors are based on changes in effective thickness of insulating layers due to adsorption of analyte onto receptors. Ultrathin chemosensors based on molecularly imprinted polymerization enable a realization of another capacitive approach that exploits changes in electrical capacitance due to modification of the dielectric constant of the polymer. Such chemosensors were prepared by photografted molecularly imprinted polymerization on the surface of gold electrodes. An adsorbed layer of hydrophobic photoinitiator (benzophenone) provided grafted polymerization on the surface of the alkanethiol-modified gold electrode. The chemosensors were characterized by cyclic voltammetry, impedance spectroscopy, and scanning electron and atomic force microscopy. Binding of analyte was detected by measurements of electrical capacitance. The results indicate a decrease of the dielectric constant of the polymer layer due to analyte binding up to 20\%.}, language = {en} } @inproceedings{JankeGollerMartinetal., author = {Janke, Christian and Goller, M. and Martin, Ivo and Gaun, Lilia and Bestle, Dieter}, title = {3D-CFD Compressor Map Computation of a Multi-Stage Axial Compressor with Off-Design Adjusted Rotor Geometries}, series = {ASME Turbo Expo 2016, Turbomachinery Technical Conference and Exposition, Volume 7A, Structures and Dynamics, Seoul, South Korea, June 13-17, 2016}, booktitle = {ASME Turbo Expo 2016, Turbomachinery Technical Conference and Exposition, Volume 7A, Structures and Dynamics, Seoul, South Korea, June 13-17, 2016}, publisher = {ASME}, address = {New York, NY [u.a.]}, isbn = {978-0-7918-4983-5}, language = {en} } @misc{HirschZharnikovShaporenkoetal., author = {Hirsch, Thomas and Zharnikov, Michael and Shaporenko, Andrey and Stahl, Joachim and Weiss, Dieter and Wolfbeis, Otto S. and Mirsky, Vladimir M.}, title = {Size-controlled electrochemical synthesis of metallic nanoparticles on molecular templates}, series = {Angewandte Chemie International Edition}, volume = {44}, journal = {Angewandte Chemie International Edition}, number = {41}, issn = {1521-3773}, doi = {10.1002/anie.200500912}, pages = {6775 -- 6778}, abstract = {Reduction on the spot: Planarly adsorbed thiolated porphyrin molecules (purple) incorporated in an insulating alkanethiol monolayer (blue) function as nanoelectrodes for the local reduction of metals (gray). This approach was applied for the in situ synthesis of nanoparticles of a predetermined size.}, language = {en} } @misc{HaoRahmWeissetal., author = {Hao, Qingli and Rahm, Michael and Weiss, Dieter and Mirsky, Vladimir M.}, title = {Morphology of electropolymerized poly (N-methylaniline) films}, series = {Microchimica Acta}, volume = {143}, journal = {Microchimica Acta}, number = {2}, issn = {0026-3672}, doi = {10.1007/s00604-003-0063-8}, pages = {147 -- 153}, abstract = {The influence of polymerization conditionson the morphology of thin films of poly-(N-methylani-line) (PNMA) was studied. The films were prepared byelectropolymerization on gold and platinum electrodesand studied by optical and electron microscopy. It wasdemonstrated that the film morphology does notdepend on the polymerization rate or on the electrodemetal.However,itissensitivetothekindofcounterionofPNMA.Thepolymerscontainingacetate orchloridedo not form stable films. Polymer films containingphosphate or sulfate display inhomogeneous struc-tures. A formation of sprouts and ''nanotubes'' wasobserved for PNMA sulfate. The films formed byPNMA perchlorate are smooth and transparent(glass-likestructure).Asublayerof4-aminothiophenolincreases the adhesion of polymers to the gold surface.}, language = {en} } @article{SpechtStefanskaGruss, author = {Specht, Dieter and Stefanska, Renata and Gruß, Christian M. F.}, title = {Objektorientierter Ansatz zur Kostenbeeinflussung in den Fr{\"u}hphasen der Produktentstehung}, language = {de} } @article{SpechtGrussStefanska, author = {Specht, Dieter and Gruß, Christian M. F. and Stefanska, Renata}, title = {Erweiterte Zeiterfassungsmethodik zur Schwachstellenidentifikation im Prozessablauf}, language = {de} } @book{SpechtGruss, author = {Specht, Dieter and Gruß, Christian M. F.}, title = {Model{\"u}berblick zur optimalen Auftragsannahmeentscheidung f{\"u}r produzierende Unternehmen auf Basis des Revenue Management Ansatzes}, publisher = {M{\"u}nchen, TCW}, isbn = {978-3-937236-62-7}, language = {de} } @book{SpechtGruss, author = {Specht, Dieter and Gruß, Christian M. F.}, title = {Revenue Management - eine Strategie f{\"u}r die Produktion in der Automobilindustrie?}, publisher = {Deutscher Universit{\"a}ts-Verlag}, address = {Wiesbaden}, isbn = {978-3-8350-0932-5}, language = {de} } @article{SpechtGruss, author = {Specht, Dieter and Gruß, Christian M. F.}, title = {Kontingentierungsans{\"a}tze des Revenue Managements f{\"u}r produzierende Unternehmen}, language = {de} } @book{SpechtForkelWeber, author = {Specht, Dieter and Forkel, M. and Weber, H.}, title = {Semantic Modelling of Technical Objects}, publisher = {Berlin; Heidelberg u. a. : Springer}, isbn = {3540977546}, language = {en} } @inproceedings{MoellerWieprechtHofmeisteretal., author = {M{\"o}ller, Detlev and Wieprecht, Wolfgang and Hofmeister, J. and Kalaß, Dieter and Elbing, F. and Ulbricht, M.}, title = {Fog dissipation by dry ice blasting process mechanism}, series = {Proceedings, 2nd International Conference on Fog and Fog Collection, St. John's, Canada, July 15 - 20, 2001}, booktitle = {Proceedings, 2nd International Conference on Fog and Fog Collection, St. John's, Canada, July 15 - 20, 2001}, address = {North York}, isbn = {0-9683887-1-X}, pages = {485 -- 491}, language = {en} } @misc{CuypersDorpTallaridaetal., author = {Cuypers, Daniel and Dorp, Dennis H. von and Tallarida, Massimo and Brizzi, Simone and Conard, Thierry and Rodriguez, Leonard and Mees, M. and Arnauts, Sophia and Schmeißer, Dieter and Adelmann, Christoph and De Gendt, Stefan}, title = {Study of InP Surfaces after Wet Chemical Treatments}, series = {ECS Journal of Solid State Science and Technology}, volume = {3}, journal = {ECS Journal of Solid State Science and Technology}, number = {1}, issn = {2162-8777}, doi = {10.1149/2.005401jss}, pages = {N3016 -- N3022}, abstract = {The influence of different wet chemical treatments (HCl, H₂SO₄, NH₄OH) on the composition of InP surfaces is studied by using synchrotron radiation photoemission spectroscopy (SRPES). It is shown that a significant amount of oxide remains present after immersion in a NH₄OH solution which is ascribed to the insolubility of In³⁺ at higher pH values. Acidic treatments efficiently remove the native oxide, although components like Pᴼ, Inᴼ and P(2±Δ)+ suboxides are observed. Alternatively, the influence of a passivation step in (NH₄)₂S solution on the surface composition was investigated. The InP surface after immersion into (NH₄)₂S results in fewer surface components, without detection of Pᴼ and P(2±Δ)+ suboxides. Finally, slight etching of InP surfaces in HCl/H₂O₂ solution followed by a native oxide removal step, showed no significant effect on the surface composition.}, language = {en} } @inproceedings{RoeskenRohrbeckCatenaetal., author = {R{\"o}sken, Liz M. and Rohrbeck, Magdalena and Catena, Alberto and Wehner, Stefan and Fischer, Christian B. and Richter, Matthias and St{\"a}dter, Matthias and Schmeißer, Dieter}, title = {Characterization of diamond-like carbon (DLC) coatings on industrial polyethylene and polyoxymethylene by SEM, AFM and NEXAFS}, series = {Verhandlungen der Deutschen Physikalischen Gesellschaft}, booktitle = {Verhandlungen der Deutschen Physikalischen Gesellschaft}, publisher = {Deutsche Physikalische Gesellschaft}, address = {Bad Honnef}, issn = {0420-0195}, abstract = {Diamond-like carbon (DLC) coatings are often utilized to change the base properties of raw materials, e. g. to gain robust or chemically inert surfaces. Here the deposition of hard DLC layers on soft polymers is tested. The common industrial polymers polyethylene (PE) and polyoxymethylene (POM) serve as model substrates in the present work. In order to examine the effect of the carbonaceous layers on PE and POM thin diamond-like carbon films were realized via PECVD. The topography of the different coatings was detected by AFM and SEM uncovering the different influence of the substrate material, e. g. interlayer formation for PE. The composition of the surface structures were analyzed in more detail by NEXAFS, showing the hybridization of carbon atoms in chemical different surroundings from the pure polymer to the carbon coating. The comparison of carbon coated PE- and POM-composites enables valuable insights into the interaction between soft substrates and hard coatings. For the chosen settings in PECVD, POM showed incomplete coating, while on PE a very stable and robust composite has formed.}, language = {en} } @article{BieniekBeckJakubowskietal., author = {Bieniek, Tomasz and Beck, Romuald B. and Jakubowski, Andrzej and Konarski, Piotr and Cwil, M. and Hoffmann, Patrick and Schmeißer, Dieter}, title = {Application of r.f. plasma ultrashallow nitrogen ion implantation for pedestal oxynitride layer formation}, language = {en} }