Iridium-based oxides: Recent advances in coloration mechanism, structural and morphological characterization
2008 (English)In: Solar Energy Materials and Solar Cells, ISSN 0927-0248, E-ISSN 1879-3398, Vol. 92, no 2, 91-96 p.Article in journal (Refereed) Published
Films of iridium-tantalum oxide and iridium oxide have been prepared by sputtering and studied regarding their structure and electrochemical properties. X-ray diffraction and transmission electron microscopy showed an average grain size of 3-4 nm for both films. Point energy dispersive X-ray spectrometry showed an inhomogeneous distribution of iridium and tantalum indicating that the iridium-tantalum oxide may be a mixture of small IrO2 and Ta2O5 grains, which is consistent with the determined composition IrTa1.4O5.6. X-ray photoelectron spectroscopy gave valuable information on the stabilization process of the as-deposited films involving an uptake of oxygen, and on a coloration mechanism only including protons.
Place, publisher, year, edition, pages
2008. Vol. 92, no 2, 91-96 p.
Physical Sciences Engineering and Technology
IdentifiersURN: urn:nbn:se:uu:diva-96832DOI: 10.1016/j.solmat.2007.03.029ISI: 000251829800002OAI: oai:DiVA.org:uu-96832DiVA: diva2:171539