Electrochromic iridium oxide films: Compatibility with propionic acid, potassium hydroxide, and lithium perchlorate in propylene carbonate
2014 (English)In: Solar Energy Materials and Solar Cells, ISSN 0927-0248, Vol. 120, no Part A, 151-156 p.Article in journal (Refereed) Published
Porous thin films of It oxide were prepared by reactive dc magnetron sputtering onto unheated substrates. The crystallite size was similar to 5 nm, and a small amount of unoxidized Ir was present. The electrochromic performance was studied by optical transmittance measurements and cyclic voltammetry applied to films in aqueous and non-aqueous electrolytes, specifically being 1 M propionic acid, 1 M potassium hydroxide (KOH), and 1 M lithium perchlorate in propylene carbonate (Li-PC). Cyclic voltammetry measurements indicated that the films had a fractal surface structure. Good electrochromism, with mid-luminous transmittance modulation between similar to 55 and similar to 90% in similar to 100-nm-thick films, was documented in all of the electrolytes.
Place, publisher, year, edition, pages
2014. Vol. 120, no Part A, 151-156 p.
Ir oxide, Porous thin films, Electrochromism, Transmittance, Durability
Engineering and Technology
Research subject Engineering Science with specialization in Solid State Physics
IdentifiersURN: urn:nbn:se:uu:diva-218594DOI: 10.1016/j.solmat.2013.08.035ISI: 000329595400018OAI: oai:DiVA.org:uu-218594DiVA: diva2:696205
FunderEU, FP7, Seventh Framework Programme, 267234