Accession Number:

ADA254873

Title:

Erasable Optical Information Storage in the Polyanilines

Descriptive Note:

Technical rept. 31 May 1991-30 Jun 1992,

Corporate Author:

PENNSYLVANIA UNIV PHILADELPHIA DEPT OF CHEMISTRY

Report Date:

1992-06-05

Pagination or Media Count:

12.0

Abstract:

The polyaniline family of polymers exhibits properties that allow for the storage of optical information Photoexcitation of several forms of polyaniline results in long-lived changes in the absorption spectra, associated with trapped charged defect states. These new absorptions exhibit long lifetimes at low temperature below -250 K, with erasure occurring upon warming the sample. Use in eraseble optical information storage devices and related technologies is discussed.

Subject Categories:

  • Information Science
  • Organic Chemistry
  • Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE