The Exciton Model for Molecular Materials: Past,Present and Future? |
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Authors: | Dr Stefan C J Meskers |
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Institution: | Molecular Materials and Nanosystems Institute for Complex Molecular Systems, Department of Chemical Engineering and Chemistry, Eindhoven university of Technology, 5600 MB Eindhoven, The Netherlands |
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Abstract: | In assemblies of identical molecules or chromophores, electronic excitations can be described as excitons, bound electron-hole pairs that can move from site to site as a pair in a coherent manner. The understanding of excitons is crucial when trying to engineer favorable photophysical properties through structuring organic molecular matter. In recent decades, limitations of the concept of an exciton have become clear. The exciton can hybridize with phonon and photons. To clarify these issues, the exciton is discussed within the broader context of the gauge properties of the electromagnetic force. |
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Keywords: | Exciton exciton chirality method Born-Oppenheimer approximation polariton gauge transformation |
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