The emission properties of crystalline thin films of oligothiophenes (OT) containing an even number of rings have been re-investigated within the framework of the theory of the pinwheel aggregates. The theory predicts that, because of the presence of a component of the transition moment perpendicular to the long molecular axis, the bottom of the exciton band is allowed and can become superradiant in highly ordered crystals as indeed observed. (C) 2003 Elsevier B.V. All rights reserved.
Cerminara, M., Meinardi, F., Borghesi, A., Campione, M., Sassella, A., Spearman, P., et al. (2003). Coherent emission from crystalline oligothiophenes with an even number of rings. SYNTHETIC METALS, 139(3), 765-768 [10.1016/S0379-6779(03)00316-3].
Coherent emission from crystalline oligothiophenes with an even number of rings
MEINARDI, FRANCESCO;BORGHESI, ALESSANDRO;CAMPIONE, MARCELLO;SASSELLA, ADELE;TUBINO, RICCARDO
2003
Abstract
The emission properties of crystalline thin films of oligothiophenes (OT) containing an even number of rings have been re-investigated within the framework of the theory of the pinwheel aggregates. The theory predicts that, because of the presence of a component of the transition moment perpendicular to the long molecular axis, the bottom of the exciton band is allowed and can become superradiant in highly ordered crystals as indeed observed. (C) 2003 Elsevier B.V. All rights reserved.
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