assembling your ecd mod3 day6 december 2nd, 2008

Assembling your ECD

Mod3 Day6

December 2nd, 2008

ePaper in an iPod world

Our ECD: layer by layer

Contrastdetermined by

Coverage of phage by IrOx

Contrastdetermined by

Coverage of phage by IrOx

Uniformity of phage deposition

100 m

images from Yoon Sung Nam

Contrastdetermined by

Coverage of phage by IrOx

Uniformity of phage deposition

Adhesion of phage*IrOx particles to electrode

Transparency of electrode, electrolyte, other materials

Switch speed determined by

Concentration of Li+ electrolytes

Density of matrix through which ions pass

Poly(ethylene glycol) dimethacrylate

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

Lithium Electrolyte

IrO2 film hooked to positive = oxidation = removing Li+ from IrO2 film = absorbs light = appears dark

Lithium Electrolyte

IrO2 film hooked to negative = reduction = pulling Li+ onto IrO2 film = clear

Side reaction of concern

desired redox:

reaction with water: