Gap States of Charged Solitons in Polyacetylene

Abstract

By considering the electron interactions in polyacetylene, it is found that there exist two gap states in charged solitons of trans- polyacetylene: one is deep level, and the other is shallow level. The deep one shifts 0.23 eV down (for a positive soliton) or up (for a negative soliton) from the center of the gap, while the shallow one is 0.06 eV under the bottom edge of the conduction band (positive soliton) or above the top edge of the valence band (negative soliton). These results agree with the absorption spectra of trans- polyacetylene. Other shallow states outside the energy bands are also predicted. Keywords: Polyacetylene; Polymers; Gap states; Charged solitons; Deep and shallow levels; Conduction and valence bands; Absorption spectra.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1989
Accession Number
ADA212105

Entities

People

  • Dingwei Lu
  • Duoliang Lin
  • Rouli Fu
  • Thomas F. George
  • Xin Sun

Organizations

  • University at Buffalo

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Communities of Interest

  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Absorption Spectra
  • Abstracts
  • Air Force
  • Chemical Engineering
  • Chemistry
  • Conduction Bands
  • Domain Walls
  • Energy Bands
  • Materials
  • Materials Science
  • Military Research
  • New York
  • Quantum Properties
  • Solid State Physics
  • United States
  • Universities
  • Wave Functions

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  • Microelectronics