Journal ArticleDOI
Li intercalation in transparent Ti-Ce oxide films: Energetics and ion dynamics
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In this article, the results of x-ray absorption fine-structure spectroscopy were used to investigate the chemical diffusion coefficient of Li, with film composition and Li content, and showed that inserted electrons do not produce luminous electrochromism.Abstract:
Films of Ti dioxide, mixed Ti–Ce oxide, and Ce dioxide were produced by reactive dc magnetron sputtering. Electrochemical lithiation was probed by chronopotentiometry, cyclic voltammetry together with optical transmittance recording, and impedance spectroscopy. Evidence was found for inserted electrons being accommodated in Ce 4f states; this contention was supported by preliminary results from x-ray absorption fine-structure spectroscopy. These electrons do not produce luminous electrochromism. The variation of the chemical diffusion coefficient of Li, with film composition and Li content, was also studied.read more
Citations
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Transparent conductors as solar energy materials: A panoramic review
TL;DR: Transparent conductors (TCs) have a multitude of applications for solar energy utilization and for energy savings, especially in buildings as discussed by the authors, which leads naturally to considerations of spectral selectivity, angular selectivity, and temporal variability of TCs, as covered in three subsequent sections.
Journal ArticleDOI
Electrochromic tungsten oxide films: Review of progress 1993–1998
TL;DR: In this article, the progress that has taken place since 1993 with regard to film deposition, characterization by physical and chemical techniques, optical properties, as well as electrochromic device assembly and performance is reviewed.
Journal ArticleDOI
Recent advances in electrochromics for smart windows applications
Claes-Göran Granqvist,Andris Azens,A Hjelm,L. Kullman,Gunnar A. Niklasson,Daniel Rönnow,M. Strømme Mattsson,M. Veszelei,Guntars Vaivars +8 more
TL;DR: In this article, the authors present optical properties of crystalline WO3, WO2 and oxyfluoride films produced by reactive magnetron bias sputtering, and transparent reactively sputter-deposited Zr-Ce oxide counter electrodes.
Journal ArticleDOI
Optical properties and electrochromic characterization of sol–gel deposited ceria films
TL;DR: In this article, X-ray diffractometry (XRD), X-Ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), UV-visible (UV-Vis) spectrography and cyclic voltammetry were used to characterize Ceria (CeO2) films.
Journal ArticleDOI
Structural and spectroelectrochemical investigations of tetragonal CeVO4 and Ce/V-oxide sol-gel derived ion-storage films
TL;DR: In this paper, the structure of thin films of CeVO 4 prepared via the sol-gel route, with a tetragonal (I4 1 /amd) crystalline structure, was determined using X-ray diffractometry (XRD).
References
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Journal ArticleDOI
Determination of the Kinetic Parameters of Mixed‐Conducting Electrodes and Application to the System Li3Sb
Werner Weppner,Robert A. Huggins +1 more
TL;DR: In this paper, an electrochemical galvanostatic intermittent titration technique (GITT) is described which combines both transient and steady-state measurements to obtain kinetic properties of solid mixed-conducting electrodes, as well as thermodynamic data.
Journal ArticleDOI
Application of A-C Techniques to the Study of Lithium Diffusion in Tungsten Trioxide Thin Films
TL;DR: In this paper, the small signal a-c impedance of the cell Li]LiAsF6 (0.75M) in propylene carbonatel Lip V~O3 thin film on tin oxide covered glass substrate has been measured at room temperature as a function of frequency from 5 10 -4 Hz to 5 X l0 s Hz at various open-circuit voltages.
Book
Cyclic Voltammetry: Simulation And Analysis Of Reaction Mechanisms
TL;DR: In this article, the reduction potential and electrode kinetics of cyclic Voltammetric experiments are discussed. But they do not consider the effect of the number of electrons in the system.
Book
Solid State Electrochemistry
TL;DR: In this article, Bruce et al. presented a theoretical analysis of the properties of glassy electrolytes, including the atomic and electronic structure of the hosts and their insertion compounds, as well as their physical principles.
Journal ArticleDOI
Spectroscopic Evidence for Localized and Extended f-Symmetry States in CeO2
TL;DR: In this paper, the occupied and empty electronic states of the insulator Ce${\mathrm{O}}_{2}$ have been studied by high-energy spectroscopies.