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How two-dimensional brick layer J-aggregates differ from linear ones: Excitonic properties and line broadening mechanisms
2016
Journal of Chemical Physics
We study the excitonic coupling and homogeneous spectral line width of brick layer J-aggregate films. We begin by analysing the structural information revealed by the two-exciton states probed in two-dimensional spectra. Our first main result is that the relation between the excitonic couplings and the spectral shift in a two-dimensional structure is different (larger shift for the same nearest neighbour coupling) from that in a one-dimensional structure, which leads to an estimation of dipolar
doi:10.1063/1.4944980
pmid:27059573
fatcat:azmgfhlp7zg6ndgz3w77jeabp4