Electronic Material Properties - und Geowissenschaften ...

Recommendations

Info

Hoffmann, P.; Non-Invasive Identification of Chemical Compounds by EDXRS, in: Practical X-Ray Fluorescence Analysis (Eds.: B. Beckhoff, B. Kanngießer, N. Langhoff, R. Wedell, H. Wolff) Springer, Berlin – Heidelberg (2006) 769 Karim, S.; Toimil Molares, M.E.; Maurer, F.; Miehe, G.; Ensinger, W.; Liu, J.; Cornelius, T.W.; Neumann, R.; Synthesis of gold nanowires with controlled crystallographic characteristics, Appl. Phys. A 84 (2006) 403 Karim, S.; Toimil-Molares, M. E.; Balogh, A.G.; Ensinger, W.; Cornelius, T.W.; Khan, E.U.; Neumann, R.; Morphological evolution of Au nanowires controlled by Rayleigh instability, Nanotechnology 17 (2006) 5954 Kraft, G.; Flege, S.; Reiff, F.; Ortner, H.M.; Ensinger, W.; Analysis of the notches of ancient serrated denars, Archaeometry 48, 4 (2006) 605 Kraft, G.; Flege, S.; Reiff, F.; Ortner, H.M.; Ensinger, W.; Electron-probe microanalysis investigations of Roman coin silvering techniques, Microchimica Acta 155 (2006) 179 Liu, J.; Duan, J.L. ; Toimil-Molares, M. E.; Karim, S.; Cornelius, T.W.; Dobrev, D.; Yao, H. J.; Sun, Y. M.; Hou, M. D.; Mo, D.; Wang, Z. G.; Neumann, R.; Electrochemical fabrication of single-crystalline and polycrystalline Au nanowires: the influence of deposition parameters, Nanotechnology 17 (8) (2006) 1922 Ortner, H.M.; Kraft, G.;Topochemische Untersuchungen antiker versilberter Münzen, GIT Labor-Fachzeitschrift 05/2006, 436 Zimmermann, T.; Ensinger, W.; Schmidt, T.C.; Depletion solid-phase microextraction for the evaluation of fiber-samples partition coefficients of pesticides, J. Chromatography A 1102 (2006) 51 - 48 -
Theoretical Materials Science Teaching by this division addresses the atomistic foundations of materials science, including the concepts underlying their representation, from the theoretical physics point of view. Research focuses on materials modelling, being a powerful tool for materials development. Experimental results will be understood, and predictions of further observations given, in the light of theoretical evidence, both to aid the optimization of the properties or the performance of materials already in use and to guide the design of novel materials with properties, or behaviour, required in future engineering applications. Current investigations centre on the following classes of materials: Transition metals and related alloys For this class of materials, represented by Ta and Fe or, respectively, steels, the goal is examining their suitability for structural components of high-power spallation neutron sources that are exposed to intense proton beams. Irradiation-induced hydrogen production under the operating conditions of the envisaged European spallation source is predicted to generate high internal concentrations of atomic hydrogen which, further enhanced by stress-driven hydrogen accumulation near microstructural cracks, may lead to a severe degradation of the mechanical properties of steel, whereas no noticeable deterioration is to be expected in the case of tantalum. High-temperature superconductors For this class of materials, typified by YBa2Cu3O7 and Bi2Sr2Ca2Cu3O10 in thin-film or bulk form, great interest is directed towards investigating extended defects (e.g. low-angle grain and twin boundaries) which are considered as weak-links between superconducting grains. There are two principal aims: (i) exploring the connection between the electromagnetic response (e.g. the current-voltage relation) and the characteristic defect morphology so as to obtain insight into constitutive parameters of superconducting films; (ii) searching for possibilities to improve the current-carrying capability of superconducting materials, which is limited by the above-mentioned types of defect. Preliminary studies of novel heterostructures involving superconductor strips with a single grain boundary defect, placed in open magnetic cavities, show that magnetic shielding here is a promising way forward. Another field of research addresses the interaction between electromagnetic radiation and multilayered heterostructures made up of superconductors as well as a range of different classes of materials with a view to examining their suitability for novel photonic crystals. Of special interest are materials whose properties can be controlled by external parameters and fields. Organic semiconductors For this class of materials, represented by Alq3, emphasis is placed on real-time modelling of the charge transfer by injected carriers and on a theoretical analysis of thermally stimulated luminescence phenomena with the aim of extracting, in conjunction with experiments, information about the electronic structure of inherent traps so as to assist technological exploitation and further materials development. Some of the most important features to be taken into account hereby are the field-dependence of the mobilities of the charge carriers addressed as well as the field- and temperature dependences of the injection barriers present, apart from allowing for the variation of the distribution of traps in space and depth. - 49 -
Page 1: ANNUAL REPORT 2 0 0 6 FACULTY OF MA
Page 4 and 5: Annual Report 2006 Faculty 11 Mater
Page 6 and 7: Preface The year 2006 of the Depart
Page 8 and 9: difference of numerical and analyti
Page 10 and 11: Institute of Materials Science Phys
Page 12 and 13: Research Projects Bulk Amorphous Al
Page 14 and 15: el Dsoki, C.; Landersheim, V. ; Kau
Page 16 and 17: Das, J.; Kim, K. B.; Xu, W.; Wei, B
Page 18 and 19: Staff Members Head Prof. Dr. Jürge
Page 20 and 21: Zhou L.; Rixecker G.; Aldinger F.;
Page 22 and 23: concerned with the synthesis and ch
Page 24 and 25: Publications Fleissner, A.; Schmid,
Page 26 and 27: • Surface analysis The UHV-surfac
Page 28 and 29: T. Mayer, U. Weiler, E. Mankel and
Page 30 and 31: Thin films The Thin Film division w
Page 32 and 33: Berky, W.; Gottschalk, S.; Elliman,
Page 34 and 35: Guest Scientists Research Projects
Page 36 and 37: Hesse, S.; Zimmermann, J.; von Segg
Page 38 and 39: Structure Research The research in
Page 40 and 41: Research Projects Functional Advanc
Page 42 and 43: Dincer, I.; Elerman, Y.; Elmali, A;
Page 44 and 45: hexakis(imidazole)nickel(II)bis(for
Page 46 and 47: Chemical Analytics The chemical ana
Page 48 and 49: Collaborations The above mentioned
Page 52 and 53: Ferroelectrics For this class of ma
Page 54 and 55: Materials Modelling The research ac
Page 56 and 57: Materials for Renewable Energies In
Page 58 and 59: Joint Research Laboratory Nanomater
Page 60 and 61: Collaborative Research Center (SFB)
Page 62 and 63: B7 P.I.: Prof. H. v. Seggern / Dr.
Page 64 and 65: The glass transition temperature (T
Page 66 and 67: transition allows to investigate at
Page 68 and 69: Relative density 1.00 0.95 0.90 0.8
Page 70 and 71: Fig. 2 shows the time dependencies
Page 72 and 73: Dielectric interface trap engineeri
Page 74 and 75: ∆V C q th eff 12 −2 p ( VGS = 0
Page 76 and 77: Fig. 3: Schematic of the photovolta
Page 78 and 79: synthesis and analysis of interface
Page 80 and 81: Fig. 2: Resistivity vs temperature
Page 82 and 83: Fig. 2: X-ray appearance near-edge
Page 84 and 85: Capacity [mAhg -1 ] 700 600 500 400
Page 86 and 87: Texture investigations and field em
Page 88 and 89: screening effects. Gold coating of
Page 90 and 91: Figure 2 shows a selected region of
Page 92 and 93: The spectrum shows that apart from
Page 94 and 95: The effect of crystallinity on the
Page 96 and 97: Electrochemical investigation and c
Page 98 and 99: This phenomenon can be understood c
Page 100 and 101:
∆ = 0 − exhibiting dominance of
Page 102 and 103:
constituents. The requirement of va
Page 104 and 105:
In order to assess the influence of
Page 106 and 107:
In this study, we have therefore de
Page 108 and 109:
Fig. 1: Proposed models for a) Pt,
Page 110 and 111:
Synthesis of oxide-polymer nanocomp
Page 112 and 113:
Diploma Theses Böhme, Mario; Herst
Page 114 and 115:
Sperling, Sebastian; Untersuchungen
Page 116 and 117:
Institute of Applied Geosiences Phy
Page 118 and 119:
Research Projects Geomorphology and
Page 120 and 121:
Engineering Geology Engineering Geo
Page 122 and 123:
Investigation of a Doline in NE-Hes
Page 124 and 125:
Applied Sedimentology Sedimentary r
Page 126 and 127:
econstruction.(Diploma thesis in co
Page 128 and 129:
Darmstadt University of Technology
Page 130 and 131:
Geomaterials Science Geomaterial Sc
Page 132 and 133:
Gregori, G.; Kleebe H.-J.; Sorarù,
Page 134 and 135:
Hessische Industriemüll GmbH). Due
Page 136 and 137:
Technical Personnel Josef Kolb, Dip
Page 138 and 139:
Research Projects Environmental sca
Page 140 and 141:
Fig. 1: Aerial photo of the Lake Li
Page 142 and 143:
Lithological Map of the Japanese Ar
Page 144 and 145:
tower stripping, and therefore much
Page 146 and 147:
Diffusion and reaction in micro- an
Page 148 and 149:
Rift dynamics, uplift and climate c
Page 150 and 151:
Geology, land use change and erosio
Page 152 and 153:
nearly half a century has been perf
Page 154 and 155:
The Effect of LiF Addition on the S
Page 156 and 157:
In case of the undoped sintered B6O
Page 158 and 159:
Microstructures in Omphacite and Ot
Page 160 and 161:
Modelling phase-assemblage diagrams
Page 162 and 163:
As an example, Fig. 2 shows the che
Page 164:
MATERIALS SCIENCE Physical Metallur
show all

Electronic Material Properties - und Geowissenschaften ...

Create successful ePaper yourself

Delete template?

Save as template?