Chemistry of Materials · 2003 · 23 citations · 16 references
Optical MaterialsEngineeringSo-called Plastic TechnologyOptoelectronic DevicesPowder MicrostructureMicro-optical ComponentElectrochromic Plastic DevicePlastic MatrixOptical PropertiesOptical SensorWo3·h2o PowderMaterials SciencePhotoluminescenceOxide ElectronicsInfrared SpectroscopyOptoelectronic MaterialsSurface ModificationOptical SensorsElectronic MaterialsMicrofabricationInfrared SensorMaterials CharacterizationApplied PhysicsThin FilmsOptoelectronics
The so-called plastic technology first developed for Li-ion batteries is demonstrated for its potential optical applications in infrared emissivity control. WO3·H2O powder embedded in a plastic matrix is used as the active component in the LiCoO2/Li electrolyte/WO3·H2O system. The role of the microstructure of WO3·H2O as an electrochromic material is investigated. For instance, platelet-shaped grains with a surface area as large as 15 μm2 induce a large improvement in device contrast properties. Reflectance measurements show a 53% contrast between the bleached and colored states over the 8−12 μm range. This effect is likely rooted in the free electron mobility in addition to scattering and phonon effects. The optical modulation performance over the range 2.5−20 μm compares favorably with literature results on solid devices built from annealed and sputtered m-WO3 thin films.
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Performance of Bellcore's plastic rechargeable Li-ion batteries
J.‐M. Tarascon, Antoni S. Góźdź, C. Schmutz et al. · Solid State Ionics · 1996 · 605 citations
Infrared switching electrochromic devices based on tungsten oxide
E. B. Franke, Chris Trimble, J. Scott Hale et al. · Journal of Applied Physics · 2000 · 121 citations