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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/174551
Polymorphic chiral squaraine crystallites in textured thin films
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Abstract
An enantiomerically pure (R)-2-methylpyrrolidine-based anilino squaraine crystallizes in two chiral polymorphs adopting a monoclinicC2 and an orthorhombic P212121structure, respectively. By various thin-film preparation tech-niques, a control of the polymorph formation is targeted. The local texture ofthe resulting textured thin films is connected to the corresponding opticalproperties. Special attention is paid to an unusual Davydov splitting, the aniso-tropic chiroptical response arising from preferred out-of-plane orientation ofthe crystallites, and the impact of the polymorph specific excitonic coupling.
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ZABLOCKI, Jennifer, et al. Polymorphic chiral squaraine crystallites in textured thin films. Chirality. 2020. Vol. 32, num. 619-631. ISSN 0899-0042. [consulted: 6 of June of 2026]. Available at: https://hdl.handle.net/2445/174551