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Title: | Organic soluble linear metallo-supramolecular polymer based on iron(II) and terpyridyl ligand with high electrochromic performance | Authors: | Shao, X Li, W Kuai, Y Huang, Q Dong, Y Zhang, C Wong, WY Ouyang, M |
Issue Date: | Dec-2021 | Source: | Synthetic metals, Dec. 2021, v. 282, 116953 | Abstract: | Ionic metallo-supramolecular materials possess excellent electrochromic properties due to the coordination of organic ligands and inorganic metal ion. In this paper, we prepared a linear organic soluble metallo-supramolecular electrochromic material named P-FeTPY which was coordinated with terpyridine as organic ligands and Fe(II) as inorganic metal ion. The polymer P-FeTPY whose ligands were modified with alkyl chains could be dissolved in dichloromethane with a solubility of 20 g/L. This indicates the introduction of long alkyl chains is effective to increase solubility of the ionic metallo-supramolecular polymer. The polymer films were spin-coated on the ITO substrate and their electrochemical and electrochromic properties were investigated. P-FeTPY film showed purplish red color with an absorption band at around 580 nm in neutral state due to the metal-to-ligand charge transfer transition, and became colorless due to the oxidization of central metal ion with around 30% change in transmittance. Cyclic voltammetry test demonstrated that P-FeTPY film which showed a couple of redox peaks at 1.15 V and 0.95 V is electrochemically reversible and stable. After 240 switching cycles, 97% of the optical contrast was retained, indicating excellent stability of P-FeTPY film. This work provides an effective path for producing organic soluble ionic metallo-supramolecular materials, which is solution processible and will greatly benefit the large area production in future industrial applications. | Keywords: | Electrochromic Metallo-supramolecular Solution processible |
Publisher: | Elsevier | Journal: | Synthetic metals | EISSN: | 0379-6779 | DOI: | 10.1016/j.synthmet.2021.116953 | Rights: | © 2021 Elsevier B.V. All rights reserved. © 2021. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/. The following publication Shao, X., Li, W., Kuai, Y., Huang, Q., Dong, Y., Zhang, C., Wong, W.-Y., & Ouyang, M. (2021). Organic soluble linear metallo-supramolecular polymer based on iron(II) and terpyridyl ligand with high electrochromic performance. Synthetic Metals, 282, 116953 is available at https://dx.doi.org/10.1016/j.synthmet.2021.116953. |
Appears in Collections: | Journal/Magazine Article |
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