Absorption Spectrum and Density of States of Square, Rectangular, and Triangular Frenkel Exciton Systems with Gaussian Diagonal Disorder

Figure 1

Normalized optical absorption for the square lattice. From left to right along the energy axis, the curves correspond to = 0.263, 0.186, 0.131, 0.093, and 0.066. In this and all other figures, energy is in units of the band width.