Surface states in molecular chains with strong mixing of Frenkel and\n charge-transfer excitons (vol 325, pg 308, 2000)
Publikation: Beitrag in Fachzeitschrift › Forschungsartikel › Beigetragen
Beitragende
Abstract
We discuss the spectrum of excitons in quasi-one-dimensional crystals with strong orbital overlap between neighboring molecules. In such crystals, the energy difference between the lowest Frenkel exciton and charge-transfer exciton becomes small and their strong mixing determines the nature of the lowest energy states. We demonstrate here that in finite chains, simultaneously with excitonic `bulk' states also `surface' states can appear. The `surface' states are localized at the end of the chain and can be blue- or red-shifted in comparison with the `bulk' states. We discuss the contribution of these states to the absorption and fluorescence spectrum of molecular chains.
Details
Originalsprache | Englisch |
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Seiten (von - bis) | 536 |
Fachzeitschrift | Chemical Physics Letters |
Jahrgang | 336 |
Ausgabenummer | 5-6 |
Publikationsstatus | Veröffentlicht - 2001 |
Peer-Review-Status | Nein |