ESR study of alkali-doped polyacenic semiconductor (PAS) materials prepared by thermal decomposition of azides

Hiroki Ago, T. Kuga, T. Yamabe, K. Tanaka, S. Yata, Y. Hato, N. Ando

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The alkali-doped polyacenic semiconductor (PAS) materials have been prepared by thermal decomposition of alkali azides (AN3, where A = Li, Na, K and Rb) in vacuo, and their electronic properties have been studied based on the electron spin resonance (ESR) spectral measurements as functions of atomic number (Z) of the dopant metal and of temperature (T) in the range 2-300 K. From the ESR spectrum, it was confirmed that the PAS material was successfully doped by a certain amount of alkali metal. The value of ESR linewidth was found to increase with Z and to linearly decrease with decreasing T. This behavior strongly suggests that conduction electrons generated by the doping have some probability to locate on the dopant metal atom and that such a location is probably suppressed at low temperatures in a rather uniform manner irrespective of metal species.

Original languageEnglish
Pages (from-to)651-656
Number of pages6
JournalCarbon
Volume35
Issue number5
DOIs
Publication statusPublished - Jan 1 1997
Externally publishedYes

Fingerprint

Aromatic polymers
Azides
Alkalies
Paramagnetic resonance
Pyrolysis
Metals
Doping (additives)
Semiconductor materials
Alkali Metals
Alkali metals
Electronic properties
Linewidth
Atoms
Temperature
Electrons

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)

Cite this

ESR study of alkali-doped polyacenic semiconductor (PAS) materials prepared by thermal decomposition of azides. / Ago, Hiroki; Kuga, T.; Yamabe, T.; Tanaka, K.; Yata, S.; Hato, Y.; Ando, N.

In: Carbon, Vol. 35, No. 5, 01.01.1997, p. 651-656.

Research output: Contribution to journalArticle

Ago, Hiroki ; Kuga, T. ; Yamabe, T. ; Tanaka, K. ; Yata, S. ; Hato, Y. ; Ando, N. / ESR study of alkali-doped polyacenic semiconductor (PAS) materials prepared by thermal decomposition of azides. In: Carbon. 1997 ; Vol. 35, No. 5. pp. 651-656.
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AU - Ago, Hiroki

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AU - Yamabe, T.

AU - Tanaka, K.

AU - Yata, S.

AU - Hato, Y.

AU - Ando, N.

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