Metamorphic stretchable touchpad. - In: Advanced Materials Technologies, ISSN 2365-709X, Bd. 4 (2019), 4, 1800446, insges. 6 S.
https://doi.org/10.1002/admt.201800446
Spatially resolved analysis of dopant concentration in axial GaAs NW pn-contacts. - In: Solar energy materials & solar cells, ISSN 1879-3398, Bd. 197 (2019), S. 13-18
https://doi.org/10.1016/j.solmat.2019.03.049
Electrochemical deposition of silicon from a sulfolane-based electrolyte: effect of applied potential. - In: Electrochemistry communications, ISSN 1873-1902, Bd. 103 (2019), S. 7-11
https://doi.org/10.1016/j.elecom.2019.04.008
The electronic properties of silicon nanowires during their dissolution under simulated physiological conditions. - In: Applied Sciences, ISSN 2076-3417, Bd. 9 (2019), 4, 804, S. 1-12
https://doi.org/10.3390/app9040804
Investigation of conductor packages and contact geometries for stranded copper wires. - In: IEEE transactions on components, packaging and manufacturing technology, ISSN 2156-3985, Bd. 9 (2019), 3, S. 399-404
https://doi.org/10.1109/TCPMT.2019.2893678
Comprehensive (S)TEM characterization of polycrystalline GaN/AlN layers grown on LTCC substrates. - In: Ceramics international, ISSN 1873-3956, Bd. 45 (2019), 7, S. 9114-9125
https://doi.org/10.1016/j.ceramint.2019.01.250
Kontrollierte Adsorption von Titandioxidpartikeln auf galvanisch erzeugten Zinkschichten zur Verbesserung des Korrosionswiderstandes von Chrom(VI)-freien Konversionsschichten :
Controlled adsorption of titanium(IV) oxide particles on electroplated zinc coatings to improve the corrosion resistance of chromium(VI)-free conversion layers. - In: Materials science and engineering technology, ISSN 1521-4052, Bd. 50 (2019), 4, S. 412-420
Adsorption of nano-scaled titanium(IV) oxide particles on electroplated zinc is performed by a simple dip-coating technique in an aqueous titanium(IV) oxide suspension prepared with a stirred media mill. X-ray photoelectron spectroscopy, scanning electron microscopy and X-ray fluorescence spectroscopy are carried out to investigate the composition of the zinc surface and the thickness and porosity of the adsorbed titania films. The zinc surface formed during the electrodeposition process is of oxyhydroxide nature and the thickness of the adsorbed titania particle layer is controlled by the pH value and the solid concentration of the suspension. In the range of 10 wt.%-30 wt.% titanium(IV) oxide, a linear dependence between the titania film thickness and the solid content of titania particles in the suspension is found. Highest film thicknesses are obtained in alkaline media (pH≥9). At 13.5 wt.% titania particles and pH values below pH = 2.4, the titania particle film is not closely packed and the zinc layer underneath is still visible in electron microscopy, which is a prerequisite for imbedding these particles by a thin second zinc layer for formation of a robust chromium(VI)-free passivation layer containing the titania particles.
https://doi.org/10.1002/mawe.201800134
Microgravimetric and spectroscopic analysis of solid-electrolyte interphase formation in presence of additives. - In: ChemPhysChem, ISSN 1439-7641, Bd. 20 (2019), 5, S. 655-664
https://doi.org/10.1002/cphc.201801001
Nanoscale morphological changes at lithium interface, triggered by the electrolyte composition and electrochemical cycling. - In: Journal of chemistry, ISSN 2090-9071, (2019), Article ID 4102382, insges. 13 S.
https://doi.org/10.1155/2019/4102382
Disordered surface formation of WS2 via hydrogen plasma with enhanced anode performances for lithium and sodium ion batteries. - In: Sustainable energy & fuels, ISSN 2398-4902, Bd. 3 (2019), 3, S. 865-874
Im Titel ist "2" tiefgestellt
Transition metal dichalcogenide (TMD) nanoparticles have attracted much attention recently for lithium and sodium ion batteries (LIBs and SIBs) due to their layered structures, which act as host lattices when reacting with ions to yield intercalation compounds. In the present article, WS2 nanoparticles are modified through hydrogen plasma treatment, and the hydrogenated WS2 (H-WS2) nanoparticles demonstrate clearly enhanced electrochemical performance as an anode material for LIBs and SIBs. H-WS2 nanoparticles are fabricated via hydrogen plasma treatment at 300 ˚C for 2 hours. A transmission electron microscopy (TEM) investigation shows that the nanoparticles have a disordered surface layer with a thickness of around 2.5 nm after the treatment, and this is confirmed by the results of Raman spectroscopy. A shift in the X-ray photoelectron spectroscopy (XPS) peaks indicates that the structural surface disorders are incorporated in the crystalline structure. The H-WS2 based LIBs and SIBs possess significantly higher specific capacities at different current densities. In addition, electrochemical impedance spectroscopy (EIS) reveals a drastic decrease in the charge-transfer resistance for both the LIBs and SIBs, which implies that the plasma hydrogenated electrode is more favorable for electron transportation during the electrochemical process. The improved rate performance of H-WS2 when applied to both LIBs and SIBs can be attributed to the reduced charge-transfer resistivity at the disordered surface layer and the improved electronic conductivity due to the disordered surface in the crystalline structure.
https://doi.org/10.1039/C8SE00566D