Search Results - "Acker, Jörg"

Studies on the deposition of copper in lithium-ion batteries during the deep discharge process by Langner, Thomas, Sieber, Tim, Acker, Jörg

“…End-of-life lithium-ion batteries represent an important secondary raw material source for nickel, cobalt, manganese and lithium compounds in order to obtain…”
Get full text

A phenomenological and quantitative view on the degradation of positive electrodes from spent lithium-ion batteries in humid atmosphere by Langner, Thomas, Sieber, Tim, Rietig, Anja, Merk, Virginia, Pfeifer, Lutz, Acker, Jörg

“…The present study deals with the phenomenological observation of the corrosion of the positive electrode foil of lithium-ion batteries containing LiNi 0.6 Co…”
Get full text

Silicon-28-Tetrafluoride as an Educt of Isotope-Engineered Silicon Compounds and Bulk Materials for Quantum Systems by Ernst, Owen C, Uebel, David, Brendler, Roman, Kraushaar, Konstantin, Steudel, Max, Acker, Jörg, Kroke, Edwin

“…This review provides a summary of the existing literature on a crucial raw material for the production of isotopically pure semiconductors, which are essential…”
Get full text

The Role of the Molecular Hydrogen Formation in the Process of Metal-Ion Reduction on Multicrystalline Silicon in a Hydrofluoric Acid Matrix by Schönekerl, Stefan, Acker, Jörg

“…Metal deposition on silicon in hydrofluoric acid (HF) solutions is a well-established process for the surface patterning of silicon. The reactions behind this…”
Get full text

Mass and Electron Balance for the Oxidation of Silicon during the Wet Chemical Etching in HF/HNO3 Mixtures by Acker, Jörg, Rietig, Anja, Steinert, Marco, Hoffmann, Volker

“…The stoichiometry of the wet-chemical etching of silicon in concentrated HF/HNO3 mixtures has been studied. By quantifying the major reaction products in…”
Get full text

Etching Shapes the Topography of Silicon Wafers: Lattice-Strain Enhanced Chemical Reactivity of Silicon for Efficient Solar Cells by Langner, Thomas, Sieber, Tim, Acker, Jörg

“…Multiwire sawing of silicon (Si) bricks is the state-of-the-art technology to produce multicrystalline Si solar wafers. The massive indentation of the abrasive…”
Get full text

The Kinetics and Stoichiometry of Metal Cation Reduction on Multi-Crystalline Silicon in a Dilute Hydrofluoric Acid Matrix by Schönekerl, Stefan, Acker, Jörg

“…In this study, the process of metal cation reduction on multi-crystalline silicon in a dilute hydrofluoric acid (HF) matrix is described using Ag(I), Cu(II),…”
Get full text

Recovery of Li(Ni 0.33 Mn 0.33 Co 0.33 )O₂ from Lithium-Ion Battery Cathodes: Aspects of Degradation by Sieber, Tim, Ducke, Jana, Rietig, Anja, Langner, Thomas, Acker, Jörg

“…Nickel⁻manganese⁻cobalt oxides, with LiNi Mn Co O₂ (NMC) as the most prominent compound, are state-of-the-art cathode materials for lithium-ion batteries in…”
Get full text

Reactive Species Generated during Wet Chemical Etching of Silicon in HF/HNO3 Mixtures by Steinert, Marco, Acker, Jörg, Krause, Matthias, Oswald, Steffen, Wetzig, Klaus

“…The role of intermediate species generated during wet chemical etching of silicon in a HF-rich HF/HNO3 mixture was studied by spectroscopic and analytical…”
Get full text

Electroless-Deposited Platinum Antennas for Wireless Surface Acoustic Wave Sensors by Brachmann, Erik, Seifert, Marietta, Neumann, Niels, Alshwawreh, Nidal, Uhlemann, Margitta, Menzel, Siegfried Bernhard, Acker, Jörg, Herold, Steven, Hoffmann, Volker, Gemming, Thomas

“…In an effort to develop a cost-efficient technology for wireless high-temperature surface acoustic wave sensors, this study presents an evaluation of a…”
Get full text

NMR investigation of boron impurities in refined metallurgical grade silicon by Grafe, Hans-Joachim, Löser, Wolfgang, Schmitz, Steffen, Sakaliyska, Miroslava, Wurmehl, Sabine, Eisert, Stefan, Reichenbach, Birk, Acker, Jörg, Rietig, Anja, Ducke, Jana, Müller, Tim

“…The nuclear magnetic resonance (NMR) method was applied for tracking boron impurities in the refining process of metallurgical grade (MG) silicon. From the NMR…”
Get full text

Critical aspects on preparation of Bi-2223 glassy precursor by melt-process by Nilsson, Andreas, Gruner, Wolfgang, Acker, Jörg, Wetzig, Klaus

“…It is well known that many Bi–Sr–Ca–Cu–O compositions are glass forming and are converted into high-critical temperature superconductors after proper…”
Get full text

Chemical analysis of acidic silicon etch solutionsI. Titrimetric determination of HNO3, HF, and H2SiF6 by Henßge, Antje, Acker, Jörg

Get full text

Sulfur incorporation in electroplated Cu(Ag) thin films by Strehle, Steffen, Reiche, Rainer, Hoffmann, Volker, Acker, Jorg, Gemming, Thomas, Wetzig, Klaus

“…Cu(Ag) films are a promising interconnect material due to their low electrical resistivity and due to an expected increase of the electromigration resistance…”
Get full text

Glass–ceramic route of BSCCO superconductors – Fabrication of amorphous precursor by Nilsson, Andreas, Gruner, Wolfgang, Acker, Jörg, Wetzig, Klaus

“…It is well known that many Bi–Sr–Ca–Cu–O compositions are glass-forming and some Bi-based glasses such as Bi 2Sr 2CaCu 2O x and Bi 2Sr 2Ca 2Cu 3O x are…”
Get full text

Segregation of organic impurities in thin electroplated Cu metallizations by Stangl, Marcel, Acker, Jorg, Hoffmann, Volker, Gruner, Wolfgang, Wetzig, Klaus

“…This article presents investigations regarding the incorporation of organic impurities in thin electroplated Cu metallizations. RF-GD-OES (radio frequency glow…”
Get full text

Raman spectroscopic determination of the degree of dissociation of nitric acid in binary and ternary mixtures with HF and H 2 SiF 6 by Langner, Thomas, Rietig, Anja, Acker, Jörg

“…Abstract The oxidizing effect of nitric acid in aqueous solutions depends on the concentration of undissociated nitric acid. This makes the concentration of…”
Get full text

Lattice strain enhanced acidic etching on as cut sawn silicon wafer by Herold, Steven, Acker, Jörg

“…The mechanical processing of silicon wafers leads to a heterogeneous lateral strain distribution and various modifications of the silicon, both of which…”
Get full text

Raman spectroscopic determination of the degree of dissociation of nitric acid in binary and ternary mixtures with HF and H2SiF6 by Langner, Thomas, Rietig, Anja, Acker, Jörg

“…The oxidizing effect of nitric acid in aqueous solutions depends on the concentration of undissociated nitric acid. This makes the concentration of…”
Get full text

Saw damage as an etch mask for the acidic texturization of multicrystalline silicon wafers by Acker, Jörg, Langner, Thomas, Meinel, Birgit, Sieber, Tim

“…The surface of multicrystalline silicon solar cells are etched by mixtures of HF, HNO3 and H2SiF6 in order to remove saw damage caused by wafer slicing, as…”
Get full text