Matrix Addressable Arrays of Microelectrochemical Devices

Abstract

Funding from the AFOSR (F49620-94-1-0449) made possible: (a) to establish that the vectorial and non-linear nature of the redox process provides a switching mechanism that can be used to build matrix-addressable electrochromic displays without cross-talk and with no need for fabrication of non-linear elements -like transistor switches- within each pixel. In contrast, it should be noted that in order to eliminate cross-talk in liquid crystal displays (LCDs) one transistor switch must be incorporated within every picture element (pixel), resulting in high cost; (b) to develop sol-gel materials with electrochromic properties for light modulation applications, or photoluminescent properties for chemical sensor applications; and, (c) to investigate and establish that strong, reproducible and quantifiable stirring effects with no moving parts can result when transverse magnetic fields are applied across the current flowing through electrochemical cells. The parameters controlling the magnetohydrodynamic stirring effect have been identified, isolated and studied independently, resulting in an equation that comprises the magnetic field equivalent of the well-known Levich equation for the rotating electrode.

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Document Details

Document Type
Technical Report
Publication Date
Oct 20, 2000
Accession Number
ADA384751

Entities

People

  • Nicholas Leventis

Tags

Communities of Interest

  • Sensors

DTIC Thesaurus Topics

  • Chemical Detectors
  • Chemical Synthesis
  • Chemistry
  • Detectors
  • Electrochemical Cells
  • Electrodes
  • Electron Transfer
  • Equations
  • Fabrication
  • Films
  • Liquid Crystal Displays
  • Liquid Crystals
  • Magnetic Fields
  • Materials
  • Methylene Blue
  • Redox Indicators
  • Transistors

Readers

  • Electrochemical Surface Science
  • Human-Computer Interaction (HCI).
  • Nanocomposite Materials Science