Exchange formalism applied to one‐dimensional triplet excitons: Observation of restricted and temperature‐dependent k to k′ scattering in the zero‐field optically detected magnetic resonance spectrum of 1,2,4,5‐tetrachlorobenzene

1980 ◽  
Vol 72 (12) ◽  
pp. 6485-6497 ◽  
Author(s):  
W. G. Breiland ◽  
M. C. Saylor
Keyword(s):  
Magnetic Resonance ◽  
Resonance Spectrum ◽  
Zero Field ◽  
Temperature Dependent ◽  
One Dimensional ◽  
Optically Detected Magnetic Resonance ◽  
Optically Detected ◽  
Triplet Excitons

Polarons and Triplet Excitons in C60: An Optically Detected Magnetic Resonance (Odmr) and Light-Induced Esr (Lesr) Study

1992 ◽  
Vol 270 ◽  
Author(s):  
P. A. Lane ◽  
L. S. Swanson ◽  
Q.-X. Ni ◽  
J. Shinar ◽  
J Engel ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
Conjugated Polymers ◽  
Glass Matrix ◽  
Membered Ring ◽  
X Band ◽  
Optically Detected Magnetic Resonance ◽  
Optically Detected ◽  
Triplet Excitons

ABSTRACTThe photoluminescence (PL), X-band ODMR. and LESR of C60 films and C60 isolated in a toluene/polystyrene glass matrix (C60:T/PS) is described. The delocalized triplet LESR and ODMR of C60:T/PS are similar to previously reported LESR. In films, however, the ODMR indicates that the delocalized triplet is larger and distorted by neighboring molecules. In addition, another, localized triplet, and a narrow PL-enhancing line at g = 2.0017 ± 0.0005 are observed. These features are similar to those observed in several π-conjugated polymers. The former is attributed to a localized triplet of size similar to a 5- or 6-membered ring, tentatively on a face adjacent to another C60 molecule; the latter is believed to result from intermolecular polaron recombination.

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