Unusual photoluminescence behavior of C70

S. M. Argentine, A. H. Francis, Chia Chun Chen, C. M. Lieber, J. S. Siegel

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

Well-resolved photoluminescence (PL) spectra of C70 and 13C70 in a glassy methylcyclohexane matrix have been obtained over the range 10 000-16 000 cm-1 at temperatures between 4 and 77 K. The PL spectrum consists of a short-lived, red fluorescence system extending from 14000 to 15500 cm-1 and a longer-lived, IR phosphorescence system extending from 10 000 to 12 500 cm-1. The PL spectrum is unusual in several aspects: the line widths are nearly 10-fold narrower than those of catacondensed hydrocarbons under similar conditions, and the temperature dependence suggests the presence of multiple emitting states (of the same spin multiplicity) or several emitting species in the highly dilute glassy matrix. To better understand the photophysical behavior of C70, we have attempted to correlate vibrational frequencies in the IR and Raman spectra of C70 and 13C70 with the vibronic intervals observed in the PL spectra. The study of 13C70 enabled a more detailed analysis of the vibronic structure of the fluorescence and phosphorescence spectra.

Original languageEnglish
Pages (from-to)7350-7354
Number of pages5
JournalJournal of Physical Chemistry
Volume98
Issue number30
DOIs
Publication statusPublished - 1994 Jan 1

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Photoluminescence
photoluminescence
Phosphorescence
Fluorescence
phosphorescence
Vibrational spectra
Hydrocarbons
Linewidth
Raman scattering
fluorescence
matrices
Temperature
hydrocarbons
Raman spectra
intervals
temperature dependence
temperature

ASJC Scopus subject areas

  • Engineering(all)
  • Physical and Theoretical Chemistry

Cite this

Argentine, S. M., Francis, A. H., Chen, C. C., Lieber, C. M., & Siegel, J. S. (1994). Unusual photoluminescence behavior of C70. Journal of Physical Chemistry, 98(30), 7350-7354. https://doi.org/10.1021/j100081a019

Unusual photoluminescence behavior of C70. / Argentine, S. M.; Francis, A. H.; Chen, Chia Chun; Lieber, C. M.; Siegel, J. S.

In: Journal of Physical Chemistry, Vol. 98, No. 30, 01.01.1994, p. 7350-7354.

Research output: Contribution to journalArticle

Argentine, SM, Francis, AH, Chen, CC, Lieber, CM & Siegel, JS 1994, 'Unusual photoluminescence behavior of C70', Journal of Physical Chemistry, vol. 98, no. 30, pp. 7350-7354. https://doi.org/10.1021/j100081a019
Argentine SM, Francis AH, Chen CC, Lieber CM, Siegel JS. Unusual photoluminescence behavior of C70. Journal of Physical Chemistry. 1994 Jan 1;98(30):7350-7354. https://doi.org/10.1021/j100081a019
Argentine, S. M. ; Francis, A. H. ; Chen, Chia Chun ; Lieber, C. M. ; Siegel, J. S. / Unusual photoluminescence behavior of C70. In: Journal of Physical Chemistry. 1994 ; Vol. 98, No. 30. pp. 7350-7354.
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