A1 Journal article (refereed)
Polymorphic chiral squaraine crystallites in textured thin films (2020)
Zablocki, J., Arteaga, O., Balzer, F., Hertel, D., Holstein, J. J., Clever, G., Anhäuser, J., Puttreddy, R., Rissanen, K., Meerholz, K., Lützen, A., & Schiek, M. (2020). Polymorphic chiral squaraine crystallites in textured thin films. Chirality, 32(5), 619-631. https://doi.org/10.1002/chir.23213
JYU authors or editors
Publication details
All authors or editors: Zablocki, Jennifer; Arteaga, Oriol; Balzer, Frank; Hertel, Dirk; Holstein, Julian J.; Clever, Guido; Anhäuser, Jana; Puttreddy, Rakesh; Rissanen, Kari; Meerholz, Klaus; et al.
Journal or series: Chirality
ISSN: 1520-636X
eISSN: 0899-0042
Publication year: 2020
Volume: 32
Issue number: 5
Pages range: 619-631
Publisher: John Wiley & Sons
Publication country: United Kingdom
Publication language: English
DOI: https://doi.org/10.1002/chir.23213
Publication open access: Openly available
Publication channel open access: Partially open access channel
Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/68217
Abstract
An enantiomerically pure (R)‐2‐methylpyrrolidine‐based anilino squaraine crystallizes in two chiral polymorphs adopting a monoclinic C2 and an orthorhombic P212121 structure, respectively. By various thin‐film preparation techniques, a control of the polymorph formation is targeted. The local texture of the resulting textured thin films is connected to the corresponding optical properties. Special attention is paid to an unusual Davydov splitting, the anisotropic chiroptical response arising from preferred out‐of‐plane orientation of the crystallites, and the impact of the polymorph specific excitonic coupling.
Keywords: organic compounds; thin films; semiconductors; polarimetry; microscopy; x-ray crystallography
Free keywords: circular dichroism; Davydov splitting; imaging Mueller matrix polarimetry; polarized spectro-microscopy; X-ray diffraction
Contributing organizations
Related projects
- Halogen bond: A strong and reliable alternative to coordination bond.
- Puttreddy, Rakesh
- Research Council of Finland
Ministry reporting: Yes
VIRTA submission year: 2020
JUFO rating: 1