Persistent Hole Burning Spectroscopy Applications on Phthalocyanine Langmuir-Blodgett Films,

Abstract

Phthalocyanine Langmuir Blodgett (LB) films represent ultra thin monomolecular layers with molecules in tight contact. Most of the phthalocyanine molecules in LB films are ordered in domains where they occupy well defined (parallel) positions. There is also a minority of non-ordered molecules in off-domain positions in LB films. This fact is well documented in X-ray diffraction and transmission electron diffraction. Moreover, significant inhomogeneous broadening of absorption spectra of LB film has been observed, in comparison with absorption spectra of isolated molecules. On the other hand the observed fluorescence is very weak, nevertheless its spectral profile well corresponds to that of isolated molecules. This phenomenon can be well explained on the basis of strong aggregation and/or fast excited energy transfer (EET).

Document Details

Document Type
Technical Report
Publication Date
May 22, 1992
Accession Number
ADP008281

Entities

People

  • E. Brynda
  • F. Adamec
  • J. Dian
  • M. Ambroz
  • Martin Vácha

Organizations

  • Charles University

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Absorption
  • Absorption Spectra
  • Diffraction
  • Electron Diffraction
  • Energy Transfer
  • Films
  • Langmuir Blodgett Films
  • Molecules
  • Phthalocyanines
  • Spectra
  • Spectroscopy
  • X Rays
  • X-Ray Diffraction

Fields of Study

  • Chemistry

Readers

  • Materials Science and Engineering.
  • Polymer Science and Technology

Technology Areas

  • Microelectronics
  • Microelectronics - Graphene