Structure of surface tungsten oxide species in the tungsten trioxide/alumina supported oxide system from x-ray absorption near-edge spectroscopy and Raman spectroscopy

1987 ◽  
Vol 91 (15) ◽  
pp. 4014-4020 ◽  
Author(s):  
J. A. Horsley ◽  
I. E. Wachs ◽  
J. M. Brown ◽  
G. H. Via ◽  
F. D. Hardcastle
1991 ◽  
Vol 95 (18) ◽  
pp. 6973-6978 ◽  
Author(s):  
Frank Hilbrig ◽  
Herbert E. Goebel ◽  
Helmut Knoezinger ◽  
Helmut Schmelz ◽  
Bruno Lengeler

ChemInform ◽  
2010 ◽  
Vol 22 (47) ◽  
pp. no-no
Author(s):  
F. HILBRIG ◽  
H. E. GOEBEL ◽  
H. KNOEZINGER ◽  
H. SCHMELZ ◽  
B. LENGELER

Materials ◽  
2020 ◽  
Vol 13 (5) ◽  
pp. 1244 ◽  
Author(s):  
Paola Pellacani ◽  
Carlo Morasso ◽  
Silvia Picciolini ◽  
Dario Gallach ◽  
Lucia Fornasari ◽  
...  

Sequential plasma processes combined with specific lithographic methods allow for the fabrication of advanced material structures. In the present work, we used self-assembled colloidal monolayers as lithographic structures for the conformation of ordered Si submicrometer pillars by reactive ion etching. We explored different discharge conditions to optimize the Si pillar geometry. Selected structures were further decorated with gold by conventional sputtering, prior to colloidal monolayer lift-off. The resulting structures consist of a gold crown, that is, a cylindrical coating on the edge of the Si pillar and a cavity on top. We analysed the Au structures in terms of electronic properties by using X-ray absorption spectroscopy (XAS) prior to and after post-processing with thermal annealing at 300 °C and/or interaction with a gold etchant solution (KI). The angular dependent analysis of the plasmonic properties was studied with Fourier transformed UV-vis measurements. Certain conditions were selected to perform a surface enhanced Raman spectroscopy (SERS) evaluation of these platforms with two model dyes, prior to confirming the potential interest for a well-resolved analysis of filtered blood plasma.


2020 ◽  
Vol 22 (5) ◽  
pp. 2615-2621 ◽  
Author(s):  
Akihiro Koide ◽  
Yohei Uemura ◽  
Daiki Kido ◽  
Yuki Wakisaka ◽  
Satoru Takakusagi ◽  
...  

Ultrafast XANES spectra and full-potential multiple scattering reveal the anisotropic structure change of photoexcited WO3.


2012 ◽  
Vol 51 (9R) ◽  
pp. 095201 ◽  
Author(s):  
Sekhar C. Ray ◽  
Rudolph M. Erasmus ◽  
H. M. Tsai ◽  
C. W. Pao ◽  
I.-N. Lin ◽  
...  

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