STUDIES OF NON-RADIATIVE ENERGY TRANSFER IN AROMATIC MOLECULES.

Abstract

An apparatus for automatic recording of T-T absorption spectra has been constructed and used to obtain data for several aromatic hydrocarbons in plastic media or low-temperature glasses. An apparatus for nanosecond flash photolysis and spectroscopy has been devised and built, using a Q-switched ruby laser. The first observations of absorption from the lowest excited singlet states of several aromatic hydrocarbons have been made. The spectral energy level data and lifetime and quantum yield data have been gathered together from a wide variety of sources for several dozen aromatic hydrocarbons. A comprehensive energy level diagram has been constructed for each molecule. Recent theories of radiationless transitions have been reviewed and correlations of their predictions with experimental data have been attempted in a few cases. (Author)

Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1969
Accession Number
AD0703745

Entities

People

  • J. R. Novak
  • N. W. Windsor

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Absorption
  • Absorption Spectra
  • Aromatic Hydrocarbons
  • Cyclic Hydrocarbons
  • Energy
  • Energy Levels
  • Energy Transfer
  • Experimental Data
  • Hydrocarbons
  • Low Temperature
  • Molecules
  • Quantum Yields
  • Ruby Lasers
  • Spectra
  • Spectroscopy

Fields of Study

  • Physics

Readers

  • Molecular Photonics/Laser Physics
  • Organic Chemistry
  • Systems Analysis and Design

Technology Areas

  • Directed Energy
  • Directed Energy - Lasers
  • Quantum Computing