Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Ulrike Helmstedt"'
Publikováno v:
Frontiers in Materials, Vol 7 (2020)
Photoconversion of metal-organic precursors to thin film metal oxides using ultraviolet (UV) radiation in oxidative atmosphere is an attractive technology because it can be applied at temperatures
Externí odkaz:
https://doaj.org/article/50699dfbc5ec4495ba993af7ac5940aa
Publikováno v:
Catalysts, Vol 11, Iss 8, p 947 (2021)
In the present article, electrodes containing a composite of platinum on top of a plasma-oxidized multi-layer graphene film are investigated as model electrodes that combine an exceptional high platinum utilization with high electrode stability. Grap
Externí odkaz:
https://doaj.org/article/3844fff772634c35ab44ab826ac1df50
Autor:
Martin Rudolph, Peter Birtel, Thomas Arnold, Andrea Prager, Sergej Naumov, Ulrike Helmstedt, André Anders, Patrick C. With
Publikováno v:
Plasma Processes and Polymers. 20
Autor:
Patrick C. With, Jan Lehnert, Lando Seifert, Stefan Dietrich, Harald Krautscheid, Sergej Naumov, Andrea Prager, Bernd Abel, Lutz Prager, Ulrike Helmstedt
Publikováno v:
Applied Surface Science. 493:525-532
Amorphous iron(III) oxide thin films have been prepared by vacuum ultraviolet (VUV) photochemically initiated oxidative conversion of [Fe(OtBu)3]2 at ambient temperature and pressure. The decomposition process and kinetics for conversion of [Fe(OtBu)
Publikováno v:
Catalysts, Vol 11, Iss 947, p 947 (2021)
Catalysts
Volume 11
Issue 8
Catalysts
Volume 11
Issue 8
In the present article, electrodes containing a composite of platinum on top of a plasma-oxidized multi-layer graphene film are investigated as model electrodes that combine an exceptional high platinum utilization with high electrode stability. Grap
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5f9ca1735205de08a1e7c57e37d9b078
https://ul.qucosa.de/id/qucosa:85116
https://ul.qucosa.de/id/qucosa:85116
Autor:
Mirko Naumann, Tom Scherzer, Olesya Daikos, Katrin Ohndorf, Ulrike Helmstedt, Carsten Bundesmann
Publikováno v:
Talanta. 223(Pt 1)
The thickness of thin layers of the conductive polymer PEDOT:PSS in the range between about 60 and 300 nm was determined by a near-infrared spectroscopic method using a hyperspectral camera. The reflection spectra of the layers do not contain bands,
Autor:
Lutz Prager, Bernd Abel, Sergej Naumov, Ulrike Helmstedt, Andrea Prager, Axel Sobottka, Roswitha Heller, Ulrich Decker
Publikováno v:
Chemistry of Materials. 28:7715-7724
Thin layers of titanium(IV) ethoxide [Ti(OEt)4] as a metal–organic precursor were spin-coated onto silicon wafers under inert conditions and subsequently photochemically converted to thin titanium(IV) oxide (TiOx) films employing vacuum ultraviolet
Publikováno v:
Industrial & Engineering Chemistry Research. 53:16813-16819
This paper introduces a novel analytical approach for monitoring the degree of condensation of thin siloxane films, which is potentially suitable for in-line process control during the deposition of such layers, e.g., to polymer films. Near-infrared
Autor:
Laure Vendier, Gilles Alcaraz, Gaëtan Bénac-Lestrille, Ulrike Helmstedt, Yann Gloaguen, Sylviane Sabo-Etienne, Eric Clot
Publikováno v:
Organometallics
Organometallics, American Chemical Society, 2013, 32, pp.4868-4877. ⟨10.1021/om400610k⟩
Organometallics, American Chemical Society, 2013, 32, pp.4868-4877. ⟨10.1021/om400610k⟩
International audience; A series of borane bis(σ-B-H) ruthenium complexes RuH2(η2:η2-H2BR)(PR′3)2 (R = alkyl, aryl; R′ = Cy, Cyp, iPr) has been prepared by using two synthetic strategies. The first one is based on a simple substitution reactio
Autor:
Luise Wennrich, Ulrike Helmstedt, Lutz Prager, Sergej Naumov, Carsten Bundesmann, Ulrich Decker, H. Khalil, Darina Manova, Jürgen W. Gerlach
Publikováno v:
Materials Chemistry and Physics. 137:1046-1052
By means of photochemical conversion of thin layers of a polymeric hexanoato aluminium complex as the precursor, thin aluminium oxide layers were prepared onto silicon wafers. The precursor compound was synthesized and characterized by several analyt