M. Stähelin, C.R. Moylan, et al.
The Journal of Chemical Physics
The dephasing of optically prepared k≈0 triplet excitons in crystalline (1,4)-dibromonaphthalene (DBN) has been investigated by measurement of the temperature dependence of the absorption line shape. At temperatures below 10 K the dephasing is due to scattering of the exciton by impurities or lattice defects. We show that the naturally occurring 13C containing DBN molecules can make a significant contribution to this linewidth. Above 10 K the excitons are scattered by optical phonons. The most likely exciton-phonon scattering process is shown to involve a single phonon scattering of the exciton between the two crystallographically inequivalent sites. Copyright © 1977 American Institute of Physics.
M. Stähelin, C.R. Moylan, et al.
The Journal of Chemical Physics
T. Verbiest, D.M. Burland
Chemical Physics Letters
W. Lenth, W.J. Kozlovsky, et al.
SPIE OE/LASE 1990
R.M. Macfarlane
Solid State Communications