Direct and Photoinduced Absorption in Poly(p-pyridyl Vinylene): Morphological Control of Triplet Excitons and Polarons.

Abstract

Optical and photoinduced absorption (PA) studies of the polymer poly(p-pyridyl vinylene) (PPyV) are reported. Differences in the PA of powders and films of PPyV demonstrate that the relative stability of the photoexcited species (singlet and triplet excions, polarons) varies with environment as a result of an enhanced intersystem crossing (ISC) route due to the presence of a nitrogen heteroatom in the backbone of the polymer chain. We conclude that triplet excitons and polarons are photocreated in powders and polarons are photocreated in films.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1996
Accession Number
ADA305224

Entities

People

  • Darren D. Gebler
  • J. W. Blatchford
  • L. B. Lin
  • S. W. Jessen
  • Yuanyuan Wang

Organizations

  • Ohio State University

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Absorption
  • Absorption Spectra
  • Band Gaps
  • Chemistry
  • Conductive Polymers
  • Conjugated Polymers
  • Data Acquisition
  • Diffraction
  • Films
  • Frequency
  • Measurement
  • Molecular Physics
  • Polymers
  • Spectra
  • Spin-Orbit Interaction
  • X Rays
  • X-Ray Diffraction

Readers

  • Chemistry (specifically Chemical Fluorescence)
  • Computer Engineering
  • Thin Film Deposition Science.

Technology Areas

  • Microelectronics
  • Microelectronics - Graphene