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: