Accession Number:

ADA167869

Title:

Semiconductor/Solid Electrolyte Junctions for Optical Information Storage. Solid-State Electrochromic Cell Using Lutecium Diphthalocyanine.

Descriptive Note:

Interim technical rept. 15 Sep 85-15 Jan 86,

Corporate Author:

ELTRON RESEARCH INC AURORA IL

Report Date:

1986-01-15

Pagination or Media Count:

13.0

Abstract:

The overall program goal is to perform a basic investigation of photoelectrochemical and electrochemical effects by electrochromic materials in solid polymer electrolyte SPE containing solid-state cells. Initial investigations have been directed towards reversible electrochromic behavior at the interface between lutecium diphthalocyanine deposited onto electronically conducting glass, and the homopolymer poly-2-acrylamido -2-methylpropane sulfonic acid polyAmps. We wish to report here some recent work on solid-state electrochromic cells in which ionic mediation to thin-film deposits of lutecium diphthalocyanine is via the homopolymer poly-2-acrylamido-2-methyl propane sulfonic acid poly-Amps. Separation between the working LuHPc2 deposited onto SnO2 conducting glass and counter CeCl3 in poly Amps electrodes in these solid-state cells was realized by the use of the insoluble copolymer perfluorosulfonic acid Nafion. Solid-state electrochromic cells were prepared using the supporting electrolytes SEs 0.1M Na2SO4 and 0.1M KCl. Upon subjecting the cell to anodic and cathodic voltage scans, up to four distinct color changes were observed varying from red at anodic potentials to violet at cathodic potentials. Formation of the violet lutecium diphthalocyanine reduction product was not found contingent upon the absence of alkali cations as reported by others.

Subject Categories:

  • Physical Chemistry
  • Solid State Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE