Frenkel Excitons in Random Systems With Correlated Gaussian Disorder

Details Frenkel Excitons in Random Systems With Correlated Gaussian Disorder Frenkel Excitons in Random Systems With Correlated Gaussian Disorder

1995-02-13

arxiv.org/abs/cond-mat/9502049v1

Physics

Condensed Matter

9 pages, REVTeX 3.0, 3 ps figures. To appear in Physical Review B

Scientific paper

10.1103/PhysRevB.51.12801

Optical absorption spectra of Frenkel excitons in random one-dimensional systems are presented. Two models of inhomogeneous broadening, arising from a Gaussian distribution of on-site energies, are considered. In one case the on-site energies are uncorrelated variables whereas in the second model the on-site energies are pairwise correlated (dimers). We observe a red shift and a broadening of the absorption line on increasing the width of the Gaussian distribution. In the two cases we find that the shift is the same, within our numerical accuracy, whereas the broadening is larger when dimers are introduced. The increase of the width of the Gaussian distribution leads to larger differences between uncorrelated and correlated disordered models. We suggest that this higher broadening is due to stronger scattering effects from dimers.

Affiliated with

Also associated with

No associations

Rating

Frenkel Excitons in Random Systems With Correlated Gaussian Disorder does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Frenkel Excitons in Random Systems With Correlated Gaussian Disorder, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Frenkel Excitons in Random Systems With Correlated Gaussian Disorder will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-531490