Accession Number:

ADA188031

Title:

Electrochromic Cells with Lutetium Diphthalocyanine and Semisolid Polymer Electrolytes.

Descriptive Note:

Technical rept. 1 Jan 85-31 Aug 87,

Corporate Author:

ROCKWELL INTERNATIONAL ANAHEIM CA SCIENCE CENTER

Personal Author(s):

• Pizzarello, F. A.
• Nicholson, M. M.

Report Date:

1987-11-01

Pagination or Media Count:

16.0

Abstract:

Cyclic voltammograms were obtained for lutetium diphthalocyanine films in contact with plasticized polyethylene oxide PEO electrolytes or solvent-swollen 2-acrylamido-2-methylpropane-sulfonic acid AMPS polymer electrolytes. Cells containing PEO-salt combinations plasticized with propylene glycol PG or acetonitrile resulted in slow, nonuniform color changes due to high interfacial resistance. The AMPS cell fabrication was simplified by starting with a commercial AMPS polymer product in the form of a transparent sheet containing water and other additives. This material, when further swollen in a PG-HC1 solution, produced the full range of uniform colors, accompanied by well defined voltammograms. It maintained good contact with the dye from -5 to 40 C. Keywords Diphthalocyanines, Solid polymer electrolytes, Electrochromism.

Descriptors:

• *ELECTROLYTES
• *LUTETIUM COMPOUNDS
• *PHTHALOCYANINES
• *POLYMERS
• *SOLID STATE ELECTRONICS
• ACETONITRILE
• ADDITIVES
• CELLS
• COLORS
• DISPLAY SYSTEMS
• DYES
• FABRICATION
• FILMS
• INTERFACES
• NONUNIFORM
• PASSIVE SYSTEMS
• PROPYLENE GLYCOL
• RESISTANCE
• SHEETS
• SIMPLIFICATION
• SOLID ELECTROLYTES
• STARTING
• TRANSPARENCE
• WATER

Subject Categories:

• Polymer Chemistry
• Physical Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE