Correlation between Pi-Orbital Overlap and Conductivity Bis- Phthalocyaninato Lanthanides

Abstract

Conductivity measurements on praseodymium, neodymium, gadolinium, holmium, erbium, and lutetium phthalocyanine sandwich compounds of the general formula H(M(Pc))2 taken with both D. C, and A. C. techniques on pressed pellet samples show a direct correlation with the intraplanar separation between the phthalocyanine ligands. Conductivity measurements on the iodine-doped bis- phthalocyaninato lanthanides, show an average increase of four orders of magnitude when measured with D. C. techniques, and two orders of magnitude when measured with A. C. techniques. The high-temperature conductivity behavior may be explained by using the mobility model. The low-temperature data show hopping conduction behavior.

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Document Details

Document Type
Technical Report
Publication Date
Jun 10, 1991
Accession Number
ADA237603

Entities

People

  • Juan Padilla
  • William E. Hatfield

Organizations

  • University of North Carolina at Chapel Hill

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Charge Carriers
  • Chemistry
  • Contracts
  • Electrical Conductivity
  • Electrical Properties
  • Electron Electron Interactions
  • Electrons
  • Energy Bands
  • Energy Gaps
  • High Temperature
  • Low Temperature
  • Measurement
  • Metals
  • Military Research
  • Mobility
  • Semiconductors
  • Valence Bands

Readers

  • Materials Science and Engineering.

Technology Areas

  • Space