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Layer-by-Layer Assembly Techniques for Enhanced Electrochromic Devices

Explore the manipulation of phage coverage by IrOx and electrode transparency for improved ECD contrast and switch speed, with emphasis on adhesion and uniformity.

roderickcook
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Layer-by-Layer Assembly Techniques for Enhanced Electrochromic Devices

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  1. Assembling your ECD Mod3 Day6 December 2nd, 2008

  2. ePaper in an iPod world

  3. Our ECD: layer by layer

  4. Contrast determined by Coverage of phage by IrOx

  5. Contrast determined by Coverage of phage by IrOx Uniformity of phage deposition 100 mm images from Yoon Sung Nam

  6. Contrast determined by Coverage of phage by IrOx Uniformity of phage deposition Adhesion of phage*IrOx particles to electrode Transparency of electrode, electrolyte, other materials

  7. liquid Li+ Li+ Li+ Li+ Li+ Li+ Li+ Li+ Li+ Li+ Switch speed determined by Concentration of Li+ electrolytes Density of matrix through which ions pass Poly(ethylene glycol) dimethacrylate

  8. Switch speed determined by Concentration of Li+ electrolytes Density of matrix through which ions pass

  9. Lithium Electrolyte IrO2 film hooked to positive = oxidation = removing Li+ from IrO2 film = absorbs light = appears dark

  10. Lithium Electrolyte IrO2 film hooked to negative = reduction = pulling Li+ onto IrO2 film = clear

  11. Side reaction of concern desired redox: reaction with water:

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