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Chiroptical Properties in Thin Films of π‑Conjugated Systems

Albano, Gianluigi ; Pescitelli, Gennaro ; Di Bari, Lorenzo

Chemical reviews, 2020-09, Vol.120 (18), p.10145-10243 [Periódico revisado por pares]

Easton: American Chemical Society

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  • Título:
    Chiroptical Properties in Thin Films of π‑Conjugated Systems
  • Autor: Albano, Gianluigi ; Pescitelli, Gennaro ; Di Bari, Lorenzo
  • Assuntos: Chemical bonds ; Circular polarization ; Dichroism ; Electromagnetic absorption ; Emission analysis ; Emissions ; Molecular structure ; Optoelectronic devices ; Properties (attributes) ; Thin films
  • É parte de: Chemical reviews, 2020-09, Vol.120 (18), p.10145-10243
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
  • Descrição: Chiral π-conjugated molecules provide new materials with outstanding features for current and perspective applications, especially in the field of optoelectronic devices. In thin films, processes such as charge conduction, light absorption, and emission are governed not only by the structure of the individual molecules but also by their supramolecular structures and intermolecular interactions to a large extent. Electronic circular dichroism, ECD, and its emission counterpart, circularly polarized luminescence, CPL, provide tools for studying aggregated states and the key properties to be sought for designing innovative devices. In this review, we shall present a comprehensive coverage of chiroptical properties measured on thin films of organic π-conjugated molecules. In the first part, we shall discuss some general concepts of ECD, CPL, and other chiroptical spectroscopies, with a focus on their applications to thin film samples. In the following, we will overview the existing literature on chiral π-conjugated systems whose thin films have been characterized by ECD and/or CPL, as well other chiroptical spectroscopies. Special emphasis will be put on systems with large dissymmetry factors (g abs and g lum) and on the application of ECD and CPL to derive structural information on aggregated states.
  • Editor: Easton: American Chemical Society
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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