Dynamics of photoexcited states in C sub 60 : An optically detected magnetic resonance, ESR, and light-induced ESR study

Journal Article · Sun Feb 09 23:00:00 EST 1992 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.68.887· OSTI ID:7070462

Lane, P A; Swanson, L S; Ni, Q; Shinar, J ^[1]; Engel, J P; Barton, T J; Jones, L ^[2]

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1. Ames Laboratory U.S. DOE and Department of Physics, Iowa State University, Ames, Iowa 50011 (United States)
2. Ames Laboratory U.S. DOE, Iowa State University, Ames, Iowa 50011 (United States)

The photoluminescence {ital X}-band optically deleted magnetic resonance (ODMR), ESR, and light-induced ESR (LESR) of C{sub 60} films and C{sub 60} in toluene/polystyrene glass C{sub 60}:T/PS are described. The ESR at {ital g}=1.998 and delocalized triplet LESR and ODMR of C{sub 60}:T/PS are similar to previously reported spectra. In films, the ODMR indicates that the delocalized triplet is larger and distorted by neighboring molecules. In addition, another, more localized triplet and a narrow photoluminescence-enhancing line at {ital g}=2.0017{plus minus}0.0005, consistent with intermolecular polaron recombination, are also observed in films but not glasses.

• DOE Contract Number: W-7405-ENG-82
• OSTI ID: 7070462
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 68:6; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360606* -- Other Materials-- Physical Properties-- (1992-)
CARBON
CRYSTALS
DEFORMATION
ELECTRON SPIN RESONANCE
ELEMENTS
ENERGY LEVELS
EXCITED STATES
EXCITONS
FILMS
GLASS
JAHN-TELLER EFFECT
LUMINESCENCE
MAGNETIC RESONANCE
MOLECULAR CRYSTALS
NONMETALS
PHOTOLUMINESCENCE
QUASI PARTICLES
RESONANCE
TEMPERATURE DEPENDENCE
VIBRATIONAL STATES