Ultra fast electrochromic switching of nanoporous tungsten-tantalum oxide films.
Self-organized nanoporous oxide layers were grown on a W-Ta alloy by electrochemical anodization. These nanostructured mixed oxide layers show an ultra-fast electrochromic switching kinetics. Compared with porous WO(3) nanostructures more than 10 times higher switching frequencies are reached along with a significantly enhanced lifetime and cyclability.
Department of Materials Science, WW-4, LKO, University of Erlangen-Nuremberg, Martensstr. 7, 91058 Erlangen, Germany.
Robin
R
Kirchgeorg
Steffen
S
Berger
Patrik
P
Schmuki
D000497:Alloys / Q000737:chemistry*; D004563:Electrochemistry; D004566:Electrodes; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure; D010087:Oxides / Q000737:chemistry*; D016062:Porosity; D013635:Tantalum / Q000737:chemistry*; D014414:Tungsten / Q000737:chemistry*
D000497:Alloys; D010087:Oxides; D013635:Tantalum; C078151:tantalum oxide; D014414:Tungsten