0000000000371128

AUTHOR

L. Kullman

showing 3 related works from this author

Electrochromic Devices Incorporating Cr Oxide And Ni Oxide Films:

2000

Abstract Transparent films of Cr oxide and Ni oxide were made by reactive DC magnetron sputtering in Ar+O2+H2. They displayed anodic electrochromism with charge capacities similar to that of W oxide. Cr oxide was stable in acidic environments, while Ni oxide was stable in basic environments. Electrochromic devices were made with pristine Cr oxide or Ni oxide films operating in conjunction with W oxide and a proton conducting electrolyte. Of the two oxides, Cr oxide film allowed device operation at a lower voltage span, while the device with Ni oxide film yielded a higher transmittance in the bleached state, a larger absorptance modulation, and a more neutral color.

Materials scienceRenewable Energy Sustainability and the EnvironmentNickel oxideInorganic chemistryOxideElectrolyteSputter depositionElectrochromic deviceschemistry.chemical_compoundchemistryElectrochromismCavity magnetronGeneral Materials ScienceThin filmSolar Energy
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<title>Cerium-containing counter electrodes for transparent electrochromic devices</title>

1997

Films of Me-Ce oxide (Me: Ti, Zr, Sn, W) and of Ni-Ce hydroxide were produced by reactive magnetron co-sputtering. Li intercalation in Me-Ce oxide, and H exchange in Ni-Ce hydroxide, were accomplished electrochemically. Electrochromism was quenched in proportion with the Ce content in Me-Ce oxide. Films of Zr-Ce (and to some extent Ti-Ce) oxide were able to serve as fully transparent counter electrodes, of much interest for transparent electrochromic devices. In Ni-Ce hydroxide, the Ce addition enhanced the capacity for charge exchange.

chemistry.chemical_compoundCeriumMaterials sciencechemistryElectrochromismIntercalation (chemistry)Inorganic chemistryOxidechemistry.chemical_elementHydroxideLithiumSputter depositionElectrochromic devicesSPIE Proceedings
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Recent Advances in Electrochromics for Smart Windows Applications

1998

Electrochromic smart windows are able to vary their throughput of radiant energy by low-voltage electrical pulses. This function is caused by reversible shuttling of electrons and charge balancing ions between an electrochromic thin film and a transparent counter electrode. The ion transport takes place via a solid electrolyte. Charge transport is evoked by a voltage applied between transparent electrical conductors surrounding the electrochromic film/electrolyte/counter electrode stack. This review summarizes recent progress concerning (i) calculated optical properties of crystalline WO3, (ii) electrochromic properties of heavily disordered W oxide and oxyfluoride films produced by reactiv…

Auxiliary electrodeMaterials scienceRenewable Energy Sustainability and the Environmentbusiness.industryOxideElectrolytechemistry.chemical_compoundchemistrySputteringElectrochromismElectrodeOptoelectronicsGeneral Materials ScienceThin filmbusinessElectrical conductorOptical Interference Coatings
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